Restarting everything after swapping RP1 (see elog 889).

Friday, July 30, 2021, 16:14: IG1 @ 7.02e-7 T.

Friday, July 30, 2021, 16:26: IV4 open. IG1 @ 6.3e-7 T.

Friday, July 30, 2021, 16:27: Auto-ramping TGHT/TBHT to 540/270 A @ 4A/min.

Friday, July 30, 2021, 16:32: Emittance meter power supply found at 500 V. Running a scan does not weep the voltage.

Cycling the PS and running a  scan. Now the voltage is swept.

Friday, July 30, 2021, 17:43: TBHT reached set current. TGHT @ 304 A and ramping up. IG1 @  6.36e-7 T. TIS glowing so I guess it didn't break from early trip.

Friday, July 30, 2021, 18:53: IG1 @ 7 e- 7 T.

Friday, July 30, 2021, 18:53 : Auto-ramping TGHT to 580A @ 4A/min.

Friday, July 30, 2021, 19:10. TGHT reached set current. IG1 @ 7.35e-7 T.

Friday, July 30, 2021, 19:22: BIAS/EZL/EE @ 30/13/1.5 kV. 

Friday, July 30, 2021, 19:25: IG1 @ 7.55e-7 T.

Friday, July 30, 2021, 19:26 :  Auto-ramping TBHT to 280A @ 4A/min.

 Friday, July 30, 2021, 19:29: TBHT reaches set current. IG1 @ 7.72e-7 T.

Friday, July 30, 2021, 21:24: Mass scans with gas on/off shows clear only contribution from gas line. 

Friday, July 30, 2021, 21:25: Anode=200C,Coil=30A. FC0=5.14e-9 A. FC6=9.35e-10 A for 40Ar+

Parameter scans performed on nominal heater current and also with heater at similar power to older measurements.

Leaving some devices that are typically at 0 V to something like 1 to 2 volts, to avoid the red 0 readback as a test.

Saturday, July 31, 2021, 08:13: System stable overnight. TMS:VCB5 was the only device found off.

Mass scans, anode-coil scans. gas line effects.

Sunday, August 01, 2021, 08:42: On-site: Grid is fine. Gas pressure stays at |200kPa| even after several line flushes. Continuing  remotely.

Several parameter scans all at 280A. All of the look remarkably similar, so reproducibility over two day is possible.  Mass scans at three different coil-anode combinations

Emittance scans still not possible @ 1.3e-9 A on FC6, when going to 290 A will try again.

Sunday, August 01, 2021, 22:52: IG1 @ 8.43e-7 T.

Sunday, August 01, 2021, 22:53:  Auto-ramping TBHT to 290A @ 4A/min.

Monday, August 02, 2021, 01:00: IG1 @ 860e-7T. FC1=1.59e-8.

Monday, August 02, 2021, 08:59: IG1 @ 7.44e-7 T.

Mass scans performed. Emittance scans are still not possible with FC6=2.2e-9 A. Parameter scans

 Monday, August 02, 2021, 09:02:  Auto-ramping TBHT to 300 A @ 4A/min.

Emittance scans are still not possible with FC6=3.1e-9 A

 Monday, August 02, 2021, 12:48: IG1 @ 7.6e-7 T.

Monday, August 02, 2021, 12:48:  Auto-ramping TBHT to 305 A @ 2A/min.

Monday, August 02, 2021, 16:40: IG1@ 8.01 e-7 T. 

 Parameter scans. Mass scans performed. Emittance scans are still not possible with FC6=6.21e-9 A. I think there is something wrong with the parameters or with the hardware. To check with Carla on Tuesday.

 I will take one more measurement at higher current and go tomorrow to check the emittance scan status.

Monday, August 02, 2021, 20:46:  Auto-ramping TBHT to 310 A @ 1A/min. IG1 @ 8.16e-7 T.

 Parameter scans. Mass scans. 

Monday, August 02, 2021, 23:47: IG1 @ 8.07e-7 T. FC0 = 3..8e-8 A.

Monday, August 02, 2021, 23:52:  Done for the day.

Tuesday, August 03, 2021, 07:34: Things were stable overnight. IG1 @ 7.92e-7 T. 

Parameter scans, and emittance meter troubleshooting.

Grid is fine.

Tuesday, August 03, 2021, 11:55: Emittance scans seem to work now( see e-log 891) 

Tuesday, August 03, 2021, 12:08: Done on-site. Continuing remotely. 

Emittance scan. Mass scans.

Tuesday, August 03, 2021, 20:21: Ramping TBHT to 315 A @ 1A/min. IG1 @ 8.2e-7 T.

Parameter scan. Mass scans. Emittances scans.

Tuesday, August 03, 2021, 22:55: IG1 @8.07e-6. Done for the day. Will continue tomorrow.

Wednesday, August 04, 2021:  Parameter scan. Mass scans. Emittances scans.

Data analysis on files generated so far. Efficiency as a function of temperature-voltage look similar.

Given that previous cathode heating current did not have emittance, I will go down to measure efficiency.

Thursday, August 05, 2021: Morning troubleshooting CANBUS signal with no luck (this is actually something good)

Mass scans. Parameter scans, and finally emittance scans at lower temperatures.

Thursday, August 05, 2021, 20:58: IG1 @ 7.35e-7 T. 

Friday, August 06, 2021: CANBUS analyzer up-and-running.

Parameter scan. Mass scans. Emittances scans.

Saturday, August 07, 2021, 06:00:  Found all my epics windows closed. Probably a network issue as I cannot connect from any of my pc's. Submitting a ticket.

 Saturday, August 07, 2021, 08:43: Reply from Steve McDonald says there are general network issues and someone is goin on-site to investigate the "network switch stack in the ISAC2 second floor"

Saturday, August 07, 2021, 10:12 : Communications restore after fix.

Saturday, August 07, 2021, 15:06: FC0 reading oscillates a lot and sometimes drop to 0. Mass scan shows almost no peaks without gas. With gas, the FC0  behaves the sames even thought 40Ar+ signal is 1e-8A and responds to the gas open/close.

Moreover, the RPM0s have an offset current. RPM0A is not showing beam.

I will turn the HV off in case there is weird dark current going on. 

Saturday, August 07, 2021, 17:29 : On-site

ISAC test stand PC lost connection to epics due to the same issue. Initiating striptools.

Nothing visible wrong on service cap nor around the ISAC test stand, however, FC0 still oscillates a lot.

I will change the signal cables to see if one controller can read from the other faraday cup.

 Things look better now (see entry 893)

Finished mass scans

Sunday, August 08, 2021, 00:35: Ramping TBHT to 300 A @ 4 A/min. IG1 @ 6.71e-7 T. 

Sunday, August 08, 2021:  Parameter scans, mass scans, emittance scans performed.

Sunday, August 08, 2021, 23:55: Checking other species given that  with TBHT=310 A I can see m=90, which I think it might be Ta++

Monday, August 09, 2021: TBHT increased to 315 A

Parameter scans, mass scans, and emittance scans performed.

Investigating the following species: O+, (H2O)+, Ar++, (N2)+/CO+, (O2)+,Ta++,(TaO)++ on masses 16,18,20,28,32,90,98, respectively.

Both the atomic, and molecular oxygen follow different tendencies wrt other species.

Tuesday, August 10, 2021, 09:57: TBHT @ 320 A. IG1 @ 6.53e-7T. 

Tuesday, August 10, 2021, 10:01: Increasing anode limit current to 200mA. All previous tests had 150 mA and the maximum current recorded was ~110mA. 

Tuesday, August 10, 2021, 11:42: Grid is fine (confirmed by Marla) 

Tuesday, August 10, 2021: Mass 60 observed, it might be (SiO2)+ coming from the coil jacket. The parameter scan shows that the ion current is only dependent on voltage. 

Wednesday, August 11, 2021. Mass scan, and parameter scan. For the first time I am measuring only FC0 with and without gas. I'm gonna investigate the higher peaks individually, likely they are H2O,O2,O,H2, and Ar

Thursday, August 12, 2021: All day measuring different ion currents with and without gas (H2,N,O,OH,H2O,N2/CO,O2).

Friday, August 13, 2021, 09:03: Currently measuring FCO with gas. 

 Friday, August 13, 2021, 10:42: On-site. Grid is fine

Friday, August 13, 2021, 19:50:Scans completed for different species, results seem consistent but required more in-depth. FC0 scans shows higher values towards high anode voltage and high coil current but not all species shows this behavior.

Friday, August 13, 2021, 19:51: Ramping tbht to 330 @ 1 A/min. 

Friday, August 13, 2021, 20:29L IG1@8.25e-7T. 

Saturday, August 14, 2021, 22:28: Parameter scans, mass scans. Some emittance scans unsuccessful.

Anode leakage current seems to creep a bit overnight. This could be an indication of a failure onset but I'll have to see. I won't increase the current remotely until being on-site

Sunday, August 15, 2021, 10:10: Anode leakage current has increased 10 mA overnight. 

Sunday, August 15, 2021, 20:43: Emittance scans for multiple anode/coil combinations. Visually there are differences on the geometrical emittance, not so much on the 90% intensity emittance. Requires proper  emittance  analysis.

Monday, August 16, 2021, 18:58: Data analysis and short summary. Systematic emittance measurements.

Request to add more PVs to control emittance and mass scans from jupyter notebook 

Tuesday, August 17, 2021, 10:22: On site. Grid is fine. Re-initianing epics as my pc reboot it.

Tuesday, August 17, 2021, 10:23: TBHT to 335A @ 1A/min. Anode leakage current =150 mA. IG1=6.51e-7T. Increase anode current limit to 250 mA.

Tuesday, August 17, 2021, 10:29: The grid is as bright as the cathode. This is the first time the grid shines this bright. 

Tuesday, August 17, 2021, 10:53: The grid looks normal at anode=200V. By making an anode sweep I was able to observe that at around 300 V there is an onset on how bright the anode get. Passing this voltage the grid start to shine and gets a maximum brightness when reaching 500V.

This seems to suggest that the power deposited on the grid is enough to cause substantial heating if it makes it as bright as the cathode. The maximum power into the anode body (at this cathode heating current (335A))  is 500V* 200mA=100W (just like a lightbulb)

Tuesday, August 17, 2021, 12:03: Done on-site. Will continue remotely. 

Tuesday, August 17, 2021, 20:19: Anode is drawing more current. During Ar+ scan, the maximum anode current registered was ~200 mA. Now is ~250 mA 

Schottky plot shows a tiny upwards kick.

Tuesday, August 17, 2021, 22:16: Once again, at the end of the scan the current increased. This time to 320 mA

Tuesday, August 17, 2021, 22:18: I think the grid will melt tonight  with anode/coil @ 200V/30A. 

Wednesday, August 18, 2021: Well, well, well. Grid didn't melt but the  anode leakage current has increased again. At some point the anode got current limited to 350 mA and from 490 V it drop to 470V.

Wednesday, August 18, 2021, 16:57: Increasing the anode limit current to 400 A.

Wednesday, August 18, 2021, 18:01: During the scan on FC0, the anode current went up to 400 mA so I increased to 500 mA, but I had to increase to 600 mA but it was still getting current limited. Scan aborted

Maybe now I am melting the grid 

I will run an FC0 scan with gas on while I'll go on-site to check the grid and the "anomalous" ionization..

Running a mass scan while I go on-site. Anode=200. Coil=90 A.

Wednesday, August 18, 2021, 19:42: Grid is melted. From the look of it half of the visible part collapsed into a blob while the other is gone (allowing to see the far backside of the target oven.

With this knowledge I can proceed with more aggressive tests in order to test the limit if the "anomalous" regime.

Wednesday, August 18, 2021, 23:24: After a mass scan with 0 V to check surfaces ionizes species I noticed there is a signal on mass ~ 137.5 which I am not sure what it is.

It might be Ba or a molecule but is coming from the transfer line as sweeping the voltage between 0 and 2 V changes the response but above this the signal is gone and reappears with 80 V.

Thursday, August 19, 2021, 08:08: mass ~137.5 disappeared. If I increased the anode voltage to 400 V or so some appears but quickly drops.

 Thursday, August 19, 2021, 11:35: Increased anode current limit to 800 mA.

Thursday, August 19, 2021, 14:08: Scan didn't cause an increased on leakage current. Maximum registered was around 200 mA. However, the contour plot looks different to the case when the grid was complete.

Thursday, August 19, 2021, 23:36: Finishing some scans at the current settings.

Thursday, August 19, 2021, 23:36: TBHT to 280A @ -1A/min. Tomorrow I will focused on temperature scans without caring much on emittance o mass composition. 

Friday, August 20, 2021, 11:28: Scans done for,280,285. Currently running 290 A.

The coil current dependence qualitatively follows the one from ISOLDE, in which a series of minimum and maxima occur and also vary a bit with voltage.

Friday, August 20, 2021, 13:34: Accidentally set TBHT to 226 A directly from 295 A. 

Friday, August 20, 2021, 13:36: Heating TBHT to 300 A @ 4A/min. 

Friday, August 20, 2021, 14:13: TBHT is at 295 A to check things are still the same. 

Friday, August 20, 2021, 23:46: TBHT @ 310 A. 

Saturday, August 21, 2021, 06:20: Scan on-going for TBHT 315 A. 

Saturday, August 21, 2021, 13:25: TBHT to 335 A. 

Saturday, August 21, 2021, 15:02: TBHT to 340 A. 

Saturday, August 21, 2021, 18:11: The voltage got current limited during the scan for 345 A. When setting the voltage to 0V, the anode seems to be shorted. 

Saturday, August 21, 2021, 22:46: Ramping down TGHT/TBHT to 0 (@-1A/min) but the short is still present. Currently  @ TGHT/TBHT 454/162 A. 

Sunday, August 22, 2021, 13:29: This morning the heaters reach 0 A but the anode remain current limited. I will proceed to turn off the TS to check tomorrow morning the ion source. 

Sunday, August 22, 2021, 13:31: IV4 closed.

 Sunday, August 22, 2021, 13:36: Sources off.

Sunday, August 22, 2021, 13:38: IG1 off

 Sunday, August 22, 2021, 13:38: Turbos off.

Monday, August 23, 2021, 07:19: Venting 

Monday, August 23, 2021, 08:30: Confirmed a short between target/cathode to anode/heatshield

Monday, August 23, 2021, 11:29: Confirmed that the anode power supply still works :) 

Wednesday, May 25, 2022, 15:46: Roughing.

Wednesday, May 25, 2022, 16:21: TP1B on.

Wednesday, May 25, 2022, 16:38: TP1A on.

Wednesday, May 25, 2022, 16:46: IG1 on.

Thursday, May 26, 2022, 09:20: FS#5 Waterline opened. Vacuum ok @ 5.27e-06T.

HV preset: BIAS / EE / EZL @ 30 / -1.0 / 15 kV

Friday, May 27, 2022, 05:11: Coil to 40 A. Anode t0 300 V.

Friday, May 27, 2022, 05:16: TGHT on. Auto-ramping TGHT / TBHT to 580 / 290 @ 2 A per min. 

Friday, May 27, 2022, 07:14: Optics set & IV4 opened. TGHT / TBHT @ 242 A (Ramping ongoing)

FM

Friday, May 27, 2022, 17:17 : IG1 @ 5.19e-6 T. TBHT @ 290 A. TGHT @ 540 A since 16:27.

Friday, May 27, 2022, 17:18: The assembly has been outgassing and the good vacuum limit was reached, preventing reaching the operational point.

Friday, May 27, 2022, 17:19: Auto-ramp up aborted. We'll heat up again Monday morning.

Friday, May 27, 2022, 17:20: Auto-cooling to 0 A @ 2A/min 

Sunday, May 29, 2022, 21:35: Auto-ramping TGHT/ TBHT to 350 / 150 A @ 2 A per min - AS.

Sunday, May 29, 2022, 21:40: Vacuum @ 1.43e-06T. 

Monday, May 30, 2022, 04:53: Vacuum @ 1.49e-06T. Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 A per min - AS 

Monday, May 30, 2022, 08:06: Initial wire & mass scans ok. Increase EE to -1.5 kV.

Monday, May 30, 2022, 08:30: EE back to -1.0 kV.

Monday, May 30, 2022, 10:31: BIAS / EE / EZL / Anode @ 0 kV. Lock over. Open back/top cage.

FM
Monday, May 30, 2022, 11:21: Mass set to 40Ar+. The gas on/off now shows an effect on the signal 

Monday, May 30, 2022, 11:24: Running a small scan to test the web-app 

Monday, May 30, 2022, 14:00: Spark towards TBHT, TPS:Q1 charged up. 

Monday, May 30, 2022, 14:30: Spark to anode. 

Monday, May 30, 2022, 16:16: Issue preventing FEBIAD-scan solve.

Monday, May 30, 2022, 16:16 : FEBIAD scan on 40Ar+.  

Monday, May 30, 2022, 17:00:   TMS :VCB1 died in the middle of the scan. Scan aborted save id 1085. Starting a new scan

 Monday, May 30, 2022, 18:24: measured_id = 1086

Moving to H2O

Monday, May 30, 2022, 18:30: Scan started for H2O. 

Monday, May 30, 2022, 19:53: Scan finished. measure_id = 1087

Monday, May 30, 2022, 19:58: Gas off. Scan for H2O ready to go. 

Monday, May 30, 2022, 19:59: Scan started 

Monday, May 30, 2022, 21:21: Scan finished. measured_id = 1089 

Monday, May 30, 2022, 21:32: Auto-cooling to 0 A @ 2A/min

AS

Tuesday, May 31, 2022, 05:10: All HV & Sources off.

Tuesday, May 31, 2022, 05:11: IV4 closed. IG1 & turbo pumps off. 

Tuesday, May 31, 2022, 07:02: IV4 reset. Venting.

Tuesday, May 31, 2022, 07:08: FS#5 purged. Power locked up.

Monday, June 07, 2021, 13:44: Roughing.

Monday, June 07, 2021, 14:16: TP1B on. (Tripped shortly after?)

Monday, June 07, 2021, 14:32: Unstable. Venting.

Monday, June 07, 2021, 15:05: Changed gaskets. Left side suspect. Roughing.

Monday, June 07, 2021, 15:35: TP1B on.

Monday, June 07, 2021, 15:42: TP1B up to speed.

Monday, June 07, 2021, 15:45: TP1A on.

Monday, June 07, 2021, 16:01: IG1 on.

Monday, June 07, 2021, 16:02: FS#5 opened. No response on backing lines. TSG:IG1 ok.

Tuesday, June 08, 2021, 08:01: Power / sources on.

Tuesday, June 08, 2021, 08:07: Reset / CFG optics & steering.

Tuesday, June 08, 2021, 08:08: TGHT / TBHT @ 10 A ok. BIAS / EE / EZL @ 5 / -0.5 / 1 kV. Quick system check ok.

Tuesday, June 08, 2021, 08:13: Auto ramping TGHT / TBHT to 350 / 150 @ 2 A per min.

Tuesday, June 08, 2021, 08:19: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Small spark near 30 kV while bringing up the HV.

Tuesday, June 08, 2021, 08:25: IV4 open. Optics set minus TPS:CB2. Shows as green 'on', set to 500V, however read back shows as 0 V.

Tuesday, June 08, 2021, 12:44: Auto ramping TGHT / TBHT to 580 / 230 @ 2 A per min. 

Tuesday, June 08, 2021, 15:53: Beam on FC0 ok. Optics set minus TPS:CB2, however FC6 is disconnected. auto-cooling @ 3 A per min.

Tuesday, June 08, 2021, 18:32: Auto-cooling halted. TGHT @ 104.3 A. 

Wednesday, June 09, 2021, 07:13: Auto-cooling continued @ 2 A per min. 

Wednesday, June 09, 2021, 08:37: HV off. Attempts made to restart TPS:CB2 unsuccessful. Controls notified.

Wednesday, June 09, 2021, 10:33: Power /  sources off. FS#5 purged. IV4 closed. IG1 & IG6 off. All turbo pumps off.

Wednesday, June 09, 2021, 11:52: Venting VV1 & VV6.

Installed a new window on MB1 as per Aurelia. Connect modified 9 pin connector & voltage meters for Ta#62 testing.

Ref:

https://elog.triumf.ca/TIS/Test-Stand/679

Pin configuration between top 9-pin connector on Source Tray and terminal in high voltage rack. Measured 2018-08-21 by Aaron and Anders

Wednesday, June 09, 2021, 14:41: Pins connected source tray side: 1, 4, 5, 6

https://elog.triumf.ca/TIS/Test-Stand/721

ST 9-pin                       HV rack

Pin to L TGHT - 1 - Black / COM / 5

Pin to R TGHT - 6 - Red / 9

Pin to L TBHT - 4 - Black / COM / 2

Pin to R TBHT - 5 - Red / 1

Wednesday, June 09, 2021, 14:29: Window installed. Roughing -  Beam line side.

Wednesday, June 09, 2021, 14:41: TP6 on.

Wednesday, June 09, 2021, 14:45: TP2 on.

Wednesday, June 09, 2021, 14:55: Roughing.

Wednesday, June 09, 2021, 16:09: TP1 on.

Thursday, June 10, 2021, 13:25: Power / sources on. FS#5 open.\

TGHT reading ok , TBHT odd? Internal connection.

Thursday, June 10, 2021, 14:45: Turbo pumps off.

Thursday, June 10, 2021, 15:25: Venting.

Thursday, June 10, 2021, 16:16: Fixed TBHT connection. Roughing.

Thursday, June 10, 2021, 16:20: Bypass used. TGHT / TBHT to 40 A each. Multimeter check ok.

Thursday, June 10, 2021, 16:24: TGHT / TBHT to 0 A. Bypass removed.

Thursday, June 10, 2021, 16:43: TP1B on.

Thursday, June 10, 2021, 16:48: TP1A on.

Thursday, June 10, 2021, 16:55: IG1 on

Tests Complete as per Aurelia.

Monday, June 21, 2021, 07:51: Power / sources off. IG1 & IG6 off. All TP off. FS#5 purged.

Monday, June 21, 2021, 09:40: Venting both ends.

Replace 9-pin back to normal grounded setup. Re-salt Ta#62. (Cu Gaskets in-use on FS#5)

Monday, June 21, 2021, 11:30: Roughing chamber.

Monday, June 21, 2021, 11:50: Removed backing window. Roughing beam line side.

Monday, June 21, 2021, 12:01: Multimeters removed. Back HV rack re-grounded. TP6 & TP2 on.

Monday, June 21, 2021, 12:02: TP1B on.

Monday, June 21, 2021, 12:13: TP1A on.

Monday, June 21, 2021, 12:21: IG1 on.

Monday, June 21, 2021, 14:37: Vacuum @ 3.96e-06T. Open FS#5

Monday, June 21, 2021, 14:39: Vacuum @ 3.76e-06T.

Monday, June 21, 2021, 14:42: Power / Sources on.

Monday, June 21, 2021, 14:43; IV4 opened & Optics on

Tuesday, June 22, 2021, 07:40: Quick system check ok.

Tuesday, June 22, 2021, 07:42: Auto-ramping TGHT / TBHT to 300 / 150 A @ 3 A per min.

Tuesday, June 22, 2021, 09:36: TGHT / TBHT @ 300 / 150 A. BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Tuesday, June 22, 2021, 09:38: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Tuesday, June 22, 2021, 09:46: External / cage sparks* Multiple.

Tuesday, June 22, 2021, 09:58: Turn down BIAS to 25 kV.

Tuesday, June 22, 2021, 12:45: BIAS to 30 kV.

Tuesday, June 22, 2021, 13:05: Odd. There was activity on FC0 right when the HV was turned on before the 580 ramp up. Now, no activity on FC0, or wire scans. Turning HV down / off.

Tuesday, June 22, 2021, 13:10: BIAS / EE / EZL @ 0 kV.

Tuesday, June 22, 2021, 13:41: Rear cage opened. Digital multi-meter was removed.

Tuesday, June 22, 2021, 13:48: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Tuesday, June 22, 2021, 13:57: No beam. Auto-cooling @ 3 A per min.

Tuesday, June 22, 2021, 16:23: HV power off. Optics off. IV4 off. TGHT still cooling.

Wednesday, June 23, 2021, 04:31: IG1 & turbo pumps off. 

Wednesday, June 23, 2021, 06:00: Venting. Power off. FS#5 purged.

Replacement Ta target for the previous one (44139-10) https://elog.triumf.ca/TIS/Test-Stand/880

Friday, June 25, 2021, 11:16: Roughing.

Friday, June 25, 2021, 11:55: TP1B started.

Friday, June 25, 2021, 12:00: TP1B on. TP1 A started.

Friday, June 25, 2021, 12:08: IG1 on.

Friday, June 25, 2021, 12:23: Vacuum @ 1.06E-05T. Open waterline FS#5.

Friday, June 25, 2021, 12:26: Vacuum @ 9.97E-06T. OK.

Friday, June 25, 2021, 12:30: Power / sources PS on.

Friday, June 25, 2021, 12:34: Full check for remote use. IV4 open (OK)

Vacuum @ 6.70e-06T

TGHT / TBHT @ 10 / 10 A

BIAS / EE / EZL @ 1 / -0.1 / 0.5 kV.

Ready for operation.

Friday, June 25, 2021, 12:39: All back to 0 Kv / 0 A. Wait for vacuum stabilization.

Sunday, June 27, 2021, 03:55: Auto-ramping TGHT / TBHT to 500 / 150 A @ 2 A per min.

Sunday, June 27, 2021, 04:04: BIAS / EE / EZL @ 20 / -1.0 / 10 kV. 

Sunday, June 27, 2021, 09:36: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Sunday, June 27, 2021, 10:07: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.  

Sunday, June 27, 2021, 10:16: TGHT / TBHT @ 580 / 230 A. Vacuum @ 1.25e-06T.

Sunday, June 27, 2021, 11:20: Mass & wire scans complete. Vacuum @ 1.14e-06T. Auto-cooling @ 2 A per min.

Sunday, June 27, 2021, 15:07: BIAS / EE / EZL @ 0 kV. TGHT still cooling.  

Monday, June 28, 2021, 06:17: IV4 closed (Needs reset). Sources, IG1, turbo pumps, off 

Monday, June 28, 2021, 08:22: Power off. IV4 reset. Venting.

HS waterlines were very tight to line up.

Wednesday, May 26, 2021, 14:29: Roughing.

Wednesday, May 26, 2021, 15:09: TP1B on. 

Wednesday, May 26, 2021, 15:36: TP1B off. 

Wednesday, May 26, 2021, 16:37: Venting. 

Wednesday, May 26, 2021, 18:03: VV1 closed. 

Thursday, May 27, 2021, 07:05: Gaskets swapped. Connections inspected. Roughing.

Thursday, May 27, 2021, 07:47: TP1B on. 

Thursday, May 27, 2021, 08:00: TP1A started.

Thursday, May 27, 2021, 08:16: IG1 on. 

Monday, May 31, 2021, 08:08: Vacuum @ 7.29e-07T.

Monday, May 31, 2021, 08:10: Waterlines opened. Vacuum ok @ 7.26e-07T

Monday, May 31, 2021, 08:12: Power/Sources on.

Monday, May 31, 2021, 08:15: No response on TGHT. TBHT ok.

Monday, May 31, 2021, 11:30: Loose control cable found on the PS. Connected. Manually set TGHT / TBHT to 10 A & back ok. Checked FS#5 interlocks - OK.

Monday, May 31, 2021, 11:50: Auto-ramping TGHT / TBHT to 300 / 150 A @ 2 A per min.

Monday, May 31, 2021, 18:06: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Tuesday, June 01, 2021, 15:40: Auto-cooling @ 1 A per min.

Wednesday, June 02, 2021, 07:57: Power / sources off. Ion gauge & turbo pumps off. 

Wednesday, June 02, 2021, 07:58: FS#5 purged.

Wednesday, June 02, 2021, 10:12: Venting.

Conditioning the UC#40 LP-SIS assembly & ISAC TS main vacuum chamber. Straight / round oven in use (TGHT only).

Tuesday, August 30, 2022, 13:55: BV1B open. Roughing.

Tuesday, August 30, 2022, 14:00: BV1A open.

Wednesday, August 31, 2022, 07:29: Vacuum @ 0.064T. TP1B on. 

Wednesday, August 31, 2022, 07:35: TP1 A on. 

Wednesday, August 31, 2022, 08:56: Vacuum @ 9.97e-06T. Waterline FS#5 opened.

Wednesday, August 31, 2022, 08:58: Vacuum @ 9.95e-06T. OK. Power on.

Thursday, September 01, 2022, 07:50: Vacuum @ 5.21e-06T. 

Thursday, September 01, 2022, 07:54: Manually tapped up TGHT to 50 A.

Limit increased on TGHT parameter setup to 5.500e-06T.

Thursday, September 01, 2022, 07:57: Auto-ramping TGHT to 580 A @ 2 A per min. 

Monday, September 12, 2022, 15:09: Vacuum @ 1.69e-06T. Auto-cooling @ 2A per min. 

Monday, September 26, 2022, 10:52: Turbo pumps off.

Monday, September 26, 2022, 12:20: Venting. PS off & waterlines purged.

Thursday, June 23, 2022, 10:58: Roughing.

Thursday, June 23, 2022, 11:03: BV1A open.

Thursday, June 23, 2022, 11:34: TP1B on

Thursday, June 23, 2022, 11:41: TP1A on.

Thursday, June 23, 2022, 11:49: IG1 on.

Thursday, June 23, 2022, 12:25: Gases on.

Thursday, June 23, 2022, 12:30: Power on. Cage locked up

Thursday, June 23, 2022, 14:14: Vacuum @ 3.23e-06T.

Thursday, June 23, 2022, 14:15: Waterlines opened. Vacuum stable.

Thursday, June 23, 2022, 14:16: IV4 opened.

Thursday, June 23, 2022, 14:17: Sources on.

Thursday, June 23, 2022, 14:18: Optics set. FM tune.

Thursday, June 23, 2022, 14:21:  Electrical check OK. Will leave as is. Remote operation ready.

BIAS / EE / EZL @ 2.5 / -0.5 / 1 kV. Anode @ 100V.

TGHT / TBHT @ 5 A each. Coil @ 5 A.

Thursday, June 23, 2022, 14:22: Reset Kepco (E-rig) PS.

Friday, June 24, 2022, 09:07: Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 A per min. 

Friday, June 24, 2022, 09:17: BIAS / EE / EZL @ 20 / -1.5 / 10 kV. 

Friday, June 24, 2022, 13:18: Ramping ongoing. TGHT / TBHT @ 510 / 290 A. Vacuum @ 3.65e-06T

Friday, June 24, 2022, 19:19: FM Tune on optics / Sources. Vacuum @ 1.60e-06T. BIAS / EE / EZL @ 30 / -1.5 / 15 kV. 

Friday, June 24, 2022, 19:42: Coil to 15 A. Anode to 200 V. 

Friday, June 24, 2022, 20:00: Mass scans complete. 

Friday, June 24, 2022, 20:01:  BIAS / EZL reduced to 20 / 10 kV.

Friday, June 24, 2022, 20:02: Anode @ 100 V. 

Monday, June 27, 2022, 09:34: BIAS / EE / EZL @ 30 / -1.5 / 15 kV.

Monday, June 27, 2022, 09:36: Anode @ 200 V. Coil @ 40 A. Vacuum @ 9.99e-07T

Monday, June 27, 2022, 10:09: Last scans complete. Auto-cooling @ 2 A per min.

Monday, June 27, 2022, 10:19: Anode, coil, & HV to 0.

Monday, June 27, 2022, 10:20: IV4 & SV5 Closed.

Wednesday, June 29, 2022, 10:57: Sources & IG1 off. Turbo pumps off

Wednesday, June 29, 2022, 12:25: Venting.

Thermocouples attached on 5 X 5 multi-pin:

O - O

O - X

O - X

X - X

X - X

Tuesday, September 27, 2022, 07:51: Roughing.

Tuesday, September 27, 2022, 08:25: TP1B on.

Tuesday, September 27, 2022, 08:45: TP1A on.

Tuesday, September 27, 2022, 11:02: Vacuum @ 8.31e-06T

Tuesday, September 27, 2022, 11:04: Waterline FS#5 opened. Vacuum @ 8.13e-06T. Power on

Data logger connected as per FBP

Tuesday, September 27, 2022, 12:18: Sources/PS on.

Tuesday, September 27, 2022, 12:21: TGHT / TBHT manually tapped up to 10A.

Tuesday, September 27, 2022, 12:29: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Tuesday, September 27, 2022, 12:34: BIAS / EE / EZL @ 35 / -1.8 / 15 kV.

Tuesday, September 27, 2022, 12:35: Sparks* @ 37 KV BIAS. Outside the cage. x 2

Tuesday, September 27, 2022, 12:37: BIAS / EE / EZL @ 40 / -2.0 / 17 kV

Tuesday, September 27, 2022, 12:47: BIAS / EE / EZL @ 45 / -2.3 / 19 kV with multiple sparks on the tap up.

Tuesday, September 27, 2022, 13:00: 2 more sparks. TSG:CBC down. (Red)

Tuesday, September 27, 2022, 13:08: BIAS / EE / EZL @ 47.2 / -2.4 / 20 kV. Significant spark outside the cage.

Tuesday, September 27, 2022, 13:10: BIAS / EE / EZL @ 50 / -2.5 / 20 kV. Spark outside the cage.

Tuesday, September 27, 2022, 13:12: Blue glow / crack flowing across the TBHT.

Tuesday, September 27, 2022, 13:15: The glow is flexing? Fading in & out.

Tuesday, September 27, 2022, 13:50: HV Tap down to 0 kV

Tuesday, September 27, 2022, 14:13: TSG:CBC controls card replaced. Operation returned.

Tuesday, September 27, 2022, 14:14: IV4 opened.

Tuesday, September 27, 2022, 14:17: Optics set.

Tuesday, September 27, 2022, 14:19: Auto-ramping TGHT / TBHT to 350 / 150 @ 2A per min.

Tuesday, September 27, 2022, 14:43: BIAS / EE / EZL @ 1 / -0.5 / 1 kV. Remote operation clear.

Tuesday, September 27, 2022, 18:20: TS tripped shortly after 3:35 PM 

Tuesday, September 27, 2022, 18:30: Reset TS sources & optics

Tuesday, September 27, 2022, 18:49: Auto-ramping TGHT / TBHT to 300 / 150 @ 1A per min. Allow for a gradual out gassing.

Tuesday, September 27, 2022, 21:20: TGHT / TBHT @ 150A Vacuum @ 2.15e-06T. TGHT ramp ongoing @ 1 A per min. 

Tuesday, September 27, 2022, 22:08: TGHT / TBHT @ 200 / 150 A. Vacuum @ 2.15e-06T. Stable. TGHT ramp ongoing @ 1 A per min. 

Tuesday, September 27, 2022, 23:19: Auto-ramp halted. Sped up to 2 A per min. Vacuum @ 1.96e-06T. TGHT @ 270 A.

Tuesday, September 27, 2022, 23:41: TGHT / TBHT @ 300 / 150 A. Vacuum @ 1.97e-06T 

Wednesday, September 28, 2022, 06:36: Auto-ramping TGHT to 350A @ 1A per min. 

Wednesday, September 28, 2022, 08:14: Vacuum remained stable @ 1.49e-06T. Auto-ramping TGHT / TBHT to 400 / 200 A @ 2A per min. 

Wednesday, September 28, 2022, 08:48: Increase in vacuum up to 2.50e-06T+ followed by a drop in TBHT voltage. TGHT / TBHT remain stable  @ 400 / 200 A. Vacuum stabilizing @ 2.32e-06T. HV off.

Wednesday, September 28, 2022, 09:15: Data logger setup. Pins moved from 3 & 4 to 4 & 5. Temperature @ 50.6 C.

Wednesday, September 28, 2022, 09:20: HV sources & optics back on. Tap up.

Wednesday, September 28, 2022, 09:33: Auto-ramping TGHT to 450A @ 2 A per min. Some small sparks noted.

Wednesday, September 28, 2022, 09:35: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Wednesday, September 28, 2022, 09:59: Auto-ramping TGHT to 500A @ 2 A per min. Some small sparks noted although less frequent. 

Wednesday, September 28, 2022, 10:28: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2A per min.

Wednesday, September 28, 2022, 10:41: BIAS lowered to 25 kV.

Wednesday, September 28, 2022, 11:09: TGHT / TBHT @ 580 / 230 A. BIAS @ 30 kV. Unstable / sparking.Very active on FC0

Wednesday, September 28, 2022, 11:29: Mass & wire scans ongoing. Reset DAC PS.

Wednesday, September 28, 2022, 11:58: Mass, wire & emittance scans complete. FC0 in. Auto-cooling @ 2 A per min.

Wednesday, September 28, 2022, 13:16: Cooling aborted for measurement. 

Wednesday, September 28, 2022, 13:21: Auto-cooling @ 2 A per min. 

Thursday, September 29, 2022, 07:20:  IV4 closed. Sources off. IG 1 & TP off.  

Tube / TGHT only.

Thursday, October 14, 2021, 10:11: Roughing.

Thursday, October 14, 2021, 12:05: TP1B on. 

Thursday, October 14, 2021, 12:10: TP1A on. 

Thursday, October 14, 2021, 13:27: IG1 on.

Thursday, October 14, 2021, 16:08: Vacuum @ 3.73e-06T

Thursday, October 14, 2021, 16:10: FS#5 open. Vacuum Stable.

Thursday, October 14, 2021, 16:13: PS on. Sources on. TGHT manually tapped up to 10 A. OK. Allow vacuum to stabilize further.

Friday, October 15, 2021, 06:38: Auto-ramping TGHT to 580 A @ 2 A per min. 

Friday, October 15, 2021, 21:32: Auto-Cooling @ 1 A per min. 

Monday, October 18, 2021, 07:50: Sources, IG1, & turbo pumps off.  

Test for Aurelia L. Empty LP-SIS w/ end caps in. Right side expanded.

Thermocouples installed (R - L):

X & Y For the (V) checks.

Y - Y

X - O

X - R

L - R

L - O

Datalogger:  R= T1 & L=T2

X = TGHT

Y = TBHT

O = Not in use.

Thursday, January 12, 2023, 09:06: Beamline side roughed down & TP on sometime last night. Vacuum @ 2.77e-06T.

Connect volt meters to 4,5 (TBHT) & 6,7 (TGHT)

Thursday, January 12, 2023, 09:43: IG1 Bypass made. TGHT / TBHT at 10 A. Volt meter check. Both display in negatives.

Thursday, January 12, 2023, 09:54: Swapped wires around for both TGHT / TBHT volt meters. OK. Breaker / PS off. Bypass removed.

Thursday, January 12, 2023, 10:14: Roughing.

Thursday, January 12, 2023, 10:16: BV1A open.

Monday, January 16, 2023, 10:25: Sources off. IV4 closed. Turbo pumps off.

Note* target has a ring on the TGHT - Right leg. EE & PE placed. Target to HS OL - OK.

Wednesday, February 10, 2021, 09:37: Roughing.

Wednesday, February 10, 2021, 09:45: Bypass / Force applied on IG1 to test Anode.

Wednesday, February 10, 2021, 09:46: Anode @ 10 V. Ok.

Wednesday, February 10, 2021, 09:47: Anode @ 200 V. Ok. No current.

Wednesday, February 10, 2021, 09:48: Anode to 0V & off. Bypass / Force removed from IG1.

Wednesday, February 10, 2021, 10:06: TP1B on.

Wednesday, February 10, 2021, 10:46: TP1A on.

Wednesday, February 10, 2021, 13:42: Vacuum @ 9.08e-06T. open FS#5

Wednesday, February 10, 2021, 13:46: Vacuum increased to 9.70e-06T as well as the backing pressure increased. Turbo pumps off. Going to swap the assembly out completely however continue with the same LP-SIS oven.

Wednesday, February 10, 2021, 15:20: HS 44378-3 Installed w/ LP-SIS oven #44691-8. Roughing

Wednesday, February 10, 2021, 15:48: TP1B on. 

Wednesday, February 10, 2021, 16:02: TP1A on.

Wednesday, February 10, 2021, 16:11: Bypass / Force applied on IG1 to test Anode. Anode @ 200 V. Ok. No current.

Wednesday, February 10, 2021, 16:13: Anode to 0V & off. Bypass / Force removed from IG1. EZL & EE check ok. IG1 on for real.

Wednesday, February 10, 2021, 16:14: Vacuum @ 6.12e-05T & Dropping.

Wednesday, February 10, 2021, 16:16: FS#5 open. Both IG1 & the backing lines are pumping down quickly.

Contacted MCR. Reminder, mechanical services still intends to service the DI water pump. Constant DI water flow is not guaranteed.

https://elog.triumf.ca/TIS/Test-Stand/847

Thursday, February 11, 2021, 00:13: : Anode to 10V. Auto-ramping TGHT/TBHT to 200/100 A @ 2 A/min

 Thursday, February 11, 2021, 09:03: Auto-ramping TGHT/TBHT to 400/200 A @ 2 A/min

From: Jas Uppal <juppal@triumf.ca>Sent: February 11, 2021 9:12 AM
To: Fernando Maldonado Millan <maldonado@triumf.ca>
Subject: Re: Cu-LCW water lines status for the ISAC test stand

Hi Fernando,

  There are no plans for Cu-LCW system to be switched off today.  I believe they are still working on correcting the issue that caused the trip two days ago.  Once it is corrected and we are ready to switch to the secondary pump, the switch over "should" be relatively invisible with possibly a slight drop in line pressure.

Jas Uppal 

 Thursday, February 11, 2021, 10:31: TGHT/TBHT at 400/200 A. Anode still at 10 V 

Thursday, February 11, 2021, 10:33: Auto-ramping TGHT/TBHT to 580/230 A @ 2 A/min

Thursday, February 11, 2021, 10:42: BIAS/EZL/EE @ 30/13/1.5 kV. 

Thursday, February 11, 2021, 13:42: Uncapable of holding HV. Maybe the new heatshield needs more time to outgas.

Thursday, February 11, 2021, 13:44: BIAS/EZL/EE @ 0.000 kV

Friday, February 12, 2021, 10:07: In order to trouble shoot the ISAC TS, I  let the sparks to continue. Initially, they occurred in the extraction electrode spark gap and were both visible and audible. However, they stop and the instabilitiy was present.

I rise the voltage again and let the spark happen for a longer period of time.

I saw how the collimator wire on the far back of the source tray was moving as if a hurricane was inside, which is very strange. I followed up the wire and I saw how it was sparking to something (see attached photo)

I say something because from the angle is difficult to say if it was going to the chamber itself or to the HS waterlines. Both scenarios are concerning

First of all the collimator is never biased and it if any case the jacket  (MHV cable) is on ground ground

In case the discharge happened from wire to the chamber, then the collimator wire was charging up, it is extremely important o note that the jacketed cable goes outside the box very close to one of the turbos.

In the other scenario where the discharge was happening from the wire to the HS waterlines, that is, HV to ground, the simply creating a clearance should be enough. In this case as well is relevant to know that this jackted cable leaves the farday cage.

I will create clearance from collimator wire to HS waterlines.

Friday, February 12, 2021, 10:33: BIAS/EZL/EE @ 0.000 kV

Friday, February 12, 2021, 10:35: Auto-cooling TGHT/TBHT to 0 A @ 4A/min.

Friday, February 12, 2021, 11:05: Discharge confirmed visually to go into the HS waterlines, (HV to ground) (see second photo attached)

Friday, February 12, 2021, 11:06: Inside the blue rack,  I could hear ticks that match the discharges, probably  the collimator PS is there. Will check later with things  off.

 Friday, February 12, 2021, 13:17: Turbos off.

 Friday, February 12, 2021, 14:36: Venting.

Monday, February 01, 2021, 08:38 : The anode seems to be shorted but we can still test the  amount of dispersion at the image position, and correlate with energy spread.

Monday, February 01, 2021, 11:27: Bias/EZL/EE @ 30/0/1.5 kV. 

 Monday, February 01, 2021, 11:44: Mass scan in progress. The peaks appear to be shifted. Large peak at  m/q160 and double peak at m/q 100u, where I think it should be 133Cs and 85Rb and 87Rb.

Monday, February 01, 2021, 14:04: HV turned itself off, nothing tripped nor change. Not sure if related to the emittance scan that I was running. Setting it to zero before restarting it.

Monday, February 01, 2021, 20:14: Ramping things down and call it a day. My laptop charger broke and I don't want to leave the HV on.

Wire scanners look fine but the emittance meter was not working. Keiko soft reboot it but to luck. 

AS

Tuesday, February 02, 2021, 08:51: E-rig re-calibrated. Mass scans taken. It appears we have evaporated all the salts. Turning off the HV & auto-cooling @ 3A per min.

Tuesday, February 02, 2021, 12:18: IV4 closed, power/sources off. Turbo pumps off.

Tuesday, February 02, 2021, 12:50: Venting.

Remove, add salts, EE ok.

Tuesday, February 02, 2021, 13:58: Rouging.

Tuesday, February 02, 2021, 14:26: Turbo pump on - TP1B.

Tuesday, February 02, 2021, 14:37: Turbo pump on - TP1A. Ion gauge on.

AS

Wednesday, February 03, 2021, 07:36: Vacuum ok @ 1.01e-06 T.

Wednesday, February 03, 2021, 07:38: Opened FS#5. Vacuum ok.

Wednesday, February 03, 2021, 07:41; Power / Sources on. Optics on.

Wednesday, February 03, 2021, 07:43: Auto-ramping TGHT / TBHT to 350 / 150 A @ 4 A per min.

Wednesday, February 03, 2021, 07:46: IV4 open

Wednesday, February 03, 2021, 07:48: BIAS / EE / EZL @ 20 / -1.0 / 0 kV to start. will go to 30 & 1.5 kV once the TGHT reaches 350 A.

Wednesday, February 03, 2021, 09:40: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Wednesday, February 03, 2021, 10:55: BIAS / EE / EZL @ 30 / -1.5 / 0 kV. Lot's of sparks on the initial conditioning from 8:30am until almost 10:20. Appears stable now.

 FM

Wednesday, February 03, 2021, 13:01: Spark. The HV bias voltage remained at 10 kV for several seconds. TSG:CBC was @ 2500 V. Likely, a sustained discharge towards the steerer had the HV bias power supply to get current limited

 Wednesday, February 03, 2021, 13:25: HV bias power supply gets current limited as of 15 kV. Setpoints to 0 to allow some discharge. Didn't work. Asking someone on site to have a look on the PS.

No sign whatsoever of a spark  to any device.

Wednesday, February 03, 2021, 18:27: HV has been erratic all day. Waiting for some stabilization allowed the system to reach ~24 kV. Now it has dropped to 20 kV.

Wednesday, February 03, 2021, 18:28: Increasing current limit on the bias PS from 0.015 to 0.02 mA

Wednesday, February 03, 2021, 18:55: Spark in the water lines. Current drop 60% from 0.03 to 0.01 uA. Spark observed in the GND electrode water lines

Wednesday, February 03, 2021, 19:11: Able to reach 28 kV but a spark ocurred.  TSG:CBC adn TSG:Q1 readback 2500 and 1500 V (similarly to the spark at 1 pm). Bias is current limited again, even at the new current limit.

• I think there might a short with one of the steerers cables, or a bit unlikely, to the quad.
• Slow charge up process, that does not discharges.

Wednesday, February 03, 2021, 19:32: Bias/EZL/EE @ 0.000 kV

Wednesday, February 03, 2021, 22:59: Tapped down TGHT/TBHT to 500/200 A to preserve the salts.

AS

Thursday, February 04, 2021, 06:42: Auto-cooling TGHT / TBHT down to 300 / 150 A. 

Thursday, February 04, 2021, 09:14: Optics set to standard settings. Checking BIAS w/ EE & EZL 

Thursday, February 04, 2021, 09:21: BIAS / EE / EZL to 16.5 / -1.0 / 10 kV. Actual on BIAS 14.5 to 15 kV on BIAS:RDVOL & w/ 0.029 mA on BIAS:RDCUR.

Thursday, February 04, 2021, 09:24: BIAS discharge. 16.5 kV on BIAS:RDVOL & w/ 0.004 mA on BIAS:RDCUR.

Thursday, February 04, 2021, 09:32: Brought BIAS up to 19 kV, but then it sparks and dropped to 13.5 kV on BIAS:RDVOL & w/ 0.029 mA on BIAS:RDCUR. Brought the BIAS down to 13 kV, & the current dropped out, then stabilized. Brought it back up to 16.5 kV. Holding 16.5 kV on BIAS:RDVOL & w/ 0.004 mA on BIAS:RDCUR.

Thursday, February 04, 2021, 09:36: BIAS / EE / EZL to 16.5 / -1.0 / 10 kV

Thursday, February 04, 2021, 09:39: Auto-cooling TGHT / TBHT down to 0 A. 

Thursday, February 04, 2021, 09:40: 17 kV - BIAS:RDVOL / 0.005 mA - BIAS:RDCUR.

Thursday, February 04, 2021, 09:45: 17.5 kV - BIAS:RDVOL / 0.005 mA - BIAS:RDCUR.

Thursday, February 04, 2021, 09:51: 18 kV - BIAS:RDVOL / 0.005 mA - BIAS:RDCUR.

Thursday, February 04, 2021, 09:55: 18.5 kV - BIAS:RDVOL / 0.005 mA - BIAS:RDCUR.

Thursday, February 04, 2021, 10:00: 19 kV - BIAS:RDVOL / 0.005 mA - BIAS:RDCUR.

Thursday, February 04, 2021, 10:14: 19.5 kV - BIAS:RDVOL / 0.005 mA - BIAS:RDCUR. 

Thursday, February 04, 2021, 10:20: 20 kV - BIAS:RDVOL / 0.005 mA - BIAS:RDCUR.  

FM

Thursday, February 04, 2021, 12:54:  20.5 kV / 0.006 mA 

Thursday, February 04, 2021, 12:58: 21 kV / 0.005 mA

Thursday, February 04, 2021, 13:02: 21.5kV / 0.006 mA 

Thursday, February 04, 2021, 13:08: 22 kV / 0.005 mA. 

Thursday, February 04, 2021, 13:12: 22.5 kV / 0.006 mA. 

Thursday, February 04, 2021, 13:58: 30 kV / 0.008 mA.

Thursday, February 04, 2021, 14:04: Spark. Bias is current limited.

Thursday, February 04, 2021, 14:39 : Small bright spot at the TGHT or HS cooling lines from the solder of the GND water lines.

Without voltage this is not noticeable. Likely a corona discharge happening at this location and hence limiting the current.

Opening to create clearance. Also to troubleshot the cathode power supply.

Thursday, February 04, 2021, 16:07: Turbos off.

 Thursday, January 21, 2021, 10:05: Anodeless Negative Bias On Surface Ion  Source, or ANBOSIS (still working on the acronym). installed to test energy spread vs position.

The SIS allow a more forgiving operation while calibrating such that other sources can have these type of measurements.

 Thursday, January 21, 2021, 10:43: Electrical connection make sense inside the source tray both with and without TIS. Anode confirmed to be on HV common through 9-pin.

Thursday, January 21, 2021, 10:46: Roughing.

Thursday, January 21, 2021, 11:17: Turbos on. 

Thursday, January 21, 2021, 11:25: IG1 on. 

 Thursday, January 21, 2021, 12:52: IG1@2.67e-5 T

AS

Friday, January 22, 2021, 07:04: Vacuum @ 4.57e-06T.

Friday, January 22, 2021, 07:07: FS#2 open. Vacuum ok @ 4.57e-06T

Friday, January 22, 2021, 07:13: FS#3 Open. Vacuum ok @ 4.57e-06T

Friday, January 22, 2021, 07:24: FS#4 Open. Vacuum ok @ 4.48e-06T

Friday, January 22, 2021, 07:30: FS#5 Open. Vacuum ok @ 4.48e-06T

Friday, January 22, 2021, 07:39: Reboot IOC (Optics page has a white out)

Friday, January 22, 2021, 07:44: Power / Sources on.

Friday, January 22, 2021, 07:49: Reboot PLC / IOC again. Surface source page ok. Optics page still in white out.

Friday, January 22, 2021, 07:52: Controls to TGHT / TBHT non-responsive. 10 / 5 A on TGHT / TBHT @ 0 / 0 A on epics & the PS.

Friday, January 22, 2021, 08:15: Tested HV. OK on both EZL & BIAS w/ 500 V each, then back to 0 V. TGHT / TBHT still not responding.

AS

Friday, January 29, 2021, 09:52: TS checks ok. Fixed. TGHT /  TBHT @ 10 A each. BIAS / EE / EZL @ 500 / -200 / 300 V to check.

 https://elog.triumf.ca/TIS/Test-Stand/842

Friday, January 29, 2021, 09:53: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min.

Friday, January 29, 2021, 10:05: BIAS / EE / EZL @ 30 /-1.5/13 kV.

Friday, January 29, 2021, 10:08: Lot's of sparking*** Reduce BIAS / EE / EZL to 20 / -1.5 / 10 kV.

 FM

Friday, January 29, 2021, 11:24: BIAS / EE / EZL @ 29 /-1.5/13 kV.. No Sparks. Ramping up to 30 kV in steps of 100V.

Friday, January 29, 2021, 11:28: Reached 30kV on bias. No sparks after 2 minutes. Previously, the sparks happened within seconds after reaching 30 kV, according to the striptool.

Friday, January 29, 2021, 11:41: There were  five inaudible sparks. They are likely occurring inside as the target-ion source is being heated. Small rise in vacuum occurred and then the spark started.

Friday, January 29, 2021, 11:42: BIAS / EE / EZL to 0.000 kV to allow outgassing

Friday, January 29, 2021, 12:44  Auto-ramping TGHT / TBHT to 500 / 200 A @ 4 A per min.

Friday, January 29, 2021, 13:32: TGHT/TBHT @500/200 A.

Friday, January 29, 2021, 13:44. Spark on top.

Friday, January 29, 2021, 13:48 : BIAS / EE / EZL @ 30 /-1.5/13 kV.

Friday, January 29, 2021, 13:49: Anode gets current limited even at 1 V.  Could this indicate a short, or that the anode is floating?

Friday, January 29, 2021, 13:53: Spark across extraction electrode spark gap.

Friday, January 29, 2021, 14:13: Auto-ramping TBHT to 225 A @ 3 A per min.

Friday, January 29, 2021, 14:32: 10 min ago, the IG6 timed out. Nothing tripped but the epics couldn't restarted. Manually turned Fil1 on controller but didn't work. Fil2 did the trick. Back to normal.

Friday, January 29, 2021, 14:42: Spark gap again. It turned the separator section yellow (except MB1)"

Friday, January 29, 2021, 15:08: Auto-ramping TGHT to 580 A @ 2 A per min. Good vac level set to 3.5e-7T

Friday, January 29, 2021, 15:17: Inaudible spark. First spark after 25 min.

Friday, January 29, 2021, 15:30: Playing with TBHT current. Couple of sparks when playing with the steerers and einzel lens. TGHT auto-ramp waiting for good vacuum.

Friday, January 29, 2021, 16:25: Vacuum reached bad vaccum level. Currentes were step back. No sparks for around 40 minutes.

Friday, January 29, 2021, 16:41: System seems to be dirty. It will likely take the weekend to reach nominal vacuum levels.

I will reduce the HV and keep the heaters on. I will keep an eye during the weekend.

Friday, January 29, 2021, 16:44: 50 minutes without sparks

Friday, January 29, 2021, 16:46:  BIAS / EE / EZL to 0.000 kV to allow outgassing during the weekend.

Saturday, January 30, 2021, 11:59: Vacuum has steadily decrease over time allowing the auto ramp-up routine to make progress.

Saturday, January 30, 2021, 12:00 IG1 @ 3.58e-6T . TGHT/TBHT @  566/230 A. All voltage still at 0 V.

Saturday, January 30, 2021, 12:56: TGHT/TBHT @ 580/230 A. 

Sunday, January 31, 2021, 09:32: TGHT/TBHT @ 580/230 A. IG1@2.59e-6T. 

Sunday, January 31, 2021, 10:48:  BIAS / EE / EZL @ 30 /-1.5/13 kV. No sparks on the way up. Beam is now noticeable on the wire scanners, When I first tried with colder target current no beam.

Sunday, January 31, 2021, 13:31: After around 3 hours, only two sparks have occurred.

Sunday, January 31, 2021, 13:54: Spark. All of them seem to be going to EZL. 

Sunday, January 31, 2021, 15:13: Spark. Separators optics turned yellow. 

Sunday, January 31, 2021, 15:38: Spark. 

Sunday, January 31, 2021, 16:11: Things were looking good so i  decided t o try  a mass scan , however a series of sparks started. I set all biases to 0 and stop the tests for today.

Friday, January 29, 2021, 09:11: CANBUS controller was replaced. Quick systems check ok. Sources, HV, & Optics all good.

Friday, January 29, 2021, 10:05: HV & Ramping check.

Friday, January 29, 2021, 10:08:

See e-log entry: 884:

Thursday, February 04, 2021, 18:45: Roughing

Thursday, February 04, 2021, 19:13: Turbos on.

Thursday, February 04, 2021, 19:22: IG1 on.

AS

Friday, February 05, 2021, 06:20: Waterline FS#5 open. Vacuum ok @ 1.71e-06T.

Friday, February 05, 2021, 06:23:

Friday, February 05, 2021, 06:26: Tried to put 100 - 1000 V on the BIAS. Goes to 0.0 kV - BIAS:RDVOL / 0.029 mA - BIAS:RDCUR, straight to current limit. BIAS is shorted.

Friday, February 05, 2021, 06:32: Power / Sources / Optics off. Ion gauge & Turbo pumps off.

Friday, February 05, 2021, 07:28: Venting.

Friday, February 05, 2021, 08:37: Roughing. Target was re-salted. GE line was close/light touch to (B) line. Adjusted. Waterlines open on FS#5.

Friday, February 05, 2021, 09:06; Turbo pump TP1B on.

Friday, February 05, 2021, 09:14: Turbo pump TP1A on

Friday, February 05, 2021, 09:19: TP1A tripped. Wait on backing pressure.

Friday, February 05, 2021, 09:35: Vacuum Bypass on BV1A to turn on TP1A.

Friday, February 05, 2021, 09:39: TP1A at speed. Ion gauge on. Bypass removed.

Friday, February 05, 2021, 09:55: IG1 off. Bypass used on IG1. EE on, BIAS on.

Friday, February 05, 2021, 09:56: 500 - 1000 V - BIAS:RDVOL / 0.000 mA - BIAS:RDCUR. Ok.

Friday, February 05, 2021, 09:58: BIAS & EE off. Bypass removed. IG1 back on. Initial check ok. Vacuum to go below 1.0e-05T.

Friday, February 05, 2021, 11:37: Power / Sources / Optics on & set. Vacuum @ 6.46e-06T.

Friday, February 05, 2021, 11:42: BIAS / EE / EZL @ 10 / -1.0 / 7.5 kV

Friday, February 05, 2021, 11:50: BIAS / EE / EZL @ 20 / -1.5 / 13 kV. TGHT / TBHT @ 10 / 10 A.

Friday, February 05, 2021, 11:58: BIAS / EE / EZL @ 25 / -1.5 / 13 kV. TGHT / TBHT @ 10 / 10 A. Anode checked up to 100 V & down again. Ok.

Friday, February 05, 2021, 12:06: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. TGHT / TBHT @ 10 / 10 A.

Friday, February 05, 2021, 12:14: BIAS / EE / EZL @ 35 / -1.5 / 13.5 kV. TGHT / TBHT @ 10 / 10 A.

Friday, February 05, 2021, 12:24: It charged up and began sparking continuously around 12:23.

Friday, February 05, 2021, 12:33: BIAS / EE / EZL @ 15 / -1.0 / 10 kV. TGHT / TBHT @ 10 / 10 A. The sparks were both clearly audible & visible on the spark gap up top (Image to be included in word doc)

FM

Friday, February 05, 2021, 14:16:   BIAS / EE / EZL @ 30/ -1.5 / 13 kV.  Anode @ 50 V.

Friday, February 05, 2021, 14:18: Auto ramp-up TGHT/TBHT to 580/230 A @ 4A/min

Friday, February 05, 2021, 15:08: Anode shorted, I think the  tube heater is touching the plasma electrode. TGHT/TBHT @ 209/209 A. TBHT voltage= 2.2. At the same time the bias current jump from 0.008 to 0.01.

Friday, February 05, 2021, 15:12: Reducing the TBHT to 190 A 2 V. Bias current linearly reducing with tbht current. The cathode is not current limited anymore. Wondering if the TBHT power supply is causing an electrical backflow or if the ion source is touching the plasma electrode.

Friday, February 05, 2021, 15:16: Auto ramp-up TGHT/TBHT to 580/230 A @  2 A/min

Friday, February 05, 2021, 15:21: The same effect as before at TBHT=223 A. When reducing to 190 A, anode goes up. 

Friday, February 05, 2021, 15:30:  Auto ramp-up TGHT to 580 A @ 4A/min and TBHT to 230 @ 1 A/min. 

Friday, February 05, 2021, 15:55: Sparks, not audible nor visible. I think I saw one on the top part of the water blocks. Lowering bias to 10 kV.

Friday, February 05, 2021, 15:56 : Auto-ramp range to 4A/min on both TGHT and TBHT

Friday, February 05, 2021, 19:23:  almost 2.5 hours without sparks. RPM tests performed. Voltages to zero. Will rise later or tomorrow remotely.

Taped down to 180/500 A on TBHT/TGHT. All voltages to  BIAS / EE / EZL @ 0.000 kV.

Saturday, February 06, 2021, 11:14:   Auto ramp-up TGHT/TBHT to 580/230 A @ 4A/min

Saturday, February 06, 2021, 12:16:    BIAS / EE / EZL @ 30/ 1.5 / 0kV.  

Saturday, February 06, 2021, 12:30: The previous tune is not working anymore. I have to re-tune . EZL now helps to have a better tune, no need for extreme steering

Well well well, after several scans I observed the following:

• Bias readback changes by 14  V. This doesn't necessarily means this is the absolute value, it could be better or worse.
• Magnet oscillates around 1 gauss, enough to move the beam to the sides.
• Different settings on the rpm scans does not yield to different results in the data
• Intensity variations causes one of the rpms scans to be lower or higher.
• Total source scans are always mirrored as long as nothing else varies.
• Separated ion scans varied wildly. No two consecutive scans are the same. Likely a combination of Bias voltage and magnet current ripples.
• Following Baartman's proceedure on a cherry-picked data set, I estimated an energy spread of 11.75 eV. To be discussed with him

Saturday, February 06, 2021, 20:00 Biases to 0.000 kV

Saturday, February 06, 2021, 20:00 : Auto-cooling TGHT/TBHT  to  400/150 A @ 3 A/min

 Saturday, February 06, 2021, 21:02: On the way down, TBHT 150  A and when TGHT cross 480 A the anode came back to life. Wonder if this could help diagnose deflection on the surface ion source (might be helpful for the P2N)

Sunday, February 07, 2021, 08:26:  Auto ramp-up TGHT/TBHT to 560/210 A @ 2A/min

Sunday, February 07, 2021, 09:18: Anode got current limited again when TGHT/TBHT @ 446/200 A 

Sunday, February 07, 2021, 11:26:  Auto ramp-up TGHT/TBHT to 560/210 A @ 2A/min 

 Sunday, February 07, 2021, 11:31: Once again, the latest tune did not work. I suspect the ion source deformation varied from thermal cycle to thermal cycle. With a crooked beam, the EZL will send the beam off-center and the quad will not compensate that. The double peak observed in the beam size scan indicates that the focusing is not correct.

Sunday, February 07, 2021, 18:41: With Baartman RPM scans, the x axis in in cm, as verified with an emittance scan.

New parameters on the emittance rig for this tune. Offset from 40 to -50. This shifts the phase space in the y axis such that is visible on the plot. 

Even in a different mass, the position scans on the dispersion plan are not reproducible.

Sunday, February 07, 2021, 18:52: Auto-cooling TGHT/TBHT to 400/150 A  @ 6A/min / 3 A/min, respectively.

 Sunday, February 07, 2021, 18:53: Biases to 0.000 kV

I think the fast cool-down rate prevented the TBHTto be able to sustained voltage.

Sunday, February 07, 2021, 19:35: Auto-cooling TGHT/TBHT to 0 A @ 3A/min 

TBHT able to sustain voltage once TBHT=191 A and TGHT=372 A

Monday, February 08, 2021, 07:14: IV4 close

Monday, February 08, 2021, 07:15: IG1 off. Turbos off. 

Re-salted. PE removed. EE Cleaned

Monday, February 08, 2021, 09:17: Roughing.

Monday, February 08, 2021, 09:46: TP1B on

Monday, February 08, 2021, 11:45: Vacuum @ 6.70e-06T. Open waterlines

Monday, February 08, 2021, 11:49: Vacuum spike. Turn off IG1 & turbo pumps. Will vent to swap gaskets.

Monday, February 08, 2021, 12:45: Venting.

Swap & tighten.

Monday, February 08, 2021, 13:33: Roughing

Monday, February 08, 2021, 14:01: TP1B on.

Monday, February 08, 2021, 14:18: TP1A on.

Monday, February 08, 2021, 14:22: Opened waterline. Vacuum was in the e-05T range and dropping however it slowed and a spike was noted on CG1A & CG1B. Turbo pumps off to vent. Will inspect the seal face.

Monday, February 08, 2021, 15:08: Venting.

Monday, February 08, 2021, 15:57: Swapped out gaskets. Checked gasket faces & Re-installed HS. Roughing.

Monday, February 08, 2021, 16:44: TP1B on.

Monday, February 08, 2021, 16:51: TP1A on.

Monday, February 08, 2021, 16:58: IG1 on

Monday, February 08, 2021, 17:00: Opened waterlines. Backing pressure ok, Vacuum continuing to improve@ 7.90e-05T.

Monday, February 08, 2021, 17:03: Power/sources on. vacuum @ 5.19e-05T

FM

Tuesday, February 09, 2021, 00:46: IG1 @ 2.14e-6T. Auto-ramping to 580/230 @ 2A/min

Tuesday, February 09, 2021, 07:17. Anode got current limited again when TBHT/TGHGT were @ 215/215 A. 

AS

Tuesday, February 09, 2021, 08:32: BIAS / EE / EZL @ 20 / -1.5 / 10 kV

Tuesday, February 09, 2021, 09:02: BIAS / EE / EZL @ 30 / -2.0 / 13 kV

Tuesday, February 09, 2021, 09:16: BIAS remains @ 30 kV. Adjusting Optics, EE, & EZL to tune. Minimal beam on FC0 noted.

Tuesday, February 09, 2021, 10:02: HV off. Check Anode & down stream.

Tuesday, February 09, 2021, 10:36: Auto-cooling @ 4 A per min

Tuesday, February 09, 2021, 10:40: Aborted. TGHT / TBHT back to 580 / 230 A. A few more checks.

Tuesday, February 09, 2021, 10:58: Auto-cooling @ 4 A per min

Tuesday, February 09, 2021, 11:08: HV off.

Tuesday, February 09, 2021, 13:41: Power / sources off. FS#5 closed off. Turbo pumps off.

 FM.

After inspecting the ion source, and revising the electrical connections, I suspect that the TBHT was floating all the time and only when it was in contact with the plasma electrode it held HV.

When the plasma electrode was removed, there was no reference whatsoever, and the ions were not extracted.

It seems then that the resistor R4 (ISK4562D) is necessary to provide a reference to the TBHT  in a similar way R1 provides one to extraction electrode.

Tuesday, February 09, 2021, 20:52: Installing R4. If the anode works this time, it will be worth checking why this reference is necessary. From the electric diagram, the chassis ground should be HV ground.

Tuesday, March 11, 2025, 14:36 Roughing. Target installed.

Tuesday, March 11, 2025, 15:06 TP1B turned on.

Tuesday, March 11, 2025, 15:10 TP1A turned on. 

Tuesday, March 11, 2025, 15:18 IG1 Turned on 6.25e-05T 

Tuesday, March 11, 2025, 16:39 Turned water on. Started autoramping TGHT/TBHT to 580/230A at 1A/30s

Wednesday, March 12, 2025, 11:03  slowly ramping BIAS/EE/EZL to 30/2.5/13 kV 

Wednesday, March 12, 2025, 14:00 no beam seen out. It seems that FC0 is working though. Investigation needed

Wednesday, March 12, 2025, 16:00 decreased HV to 0 to investigate. See report (to be released and attached) for more information

Friday, March 14, 2025, 09:20 :  increasing TGHT TBHT to 100A at 1A/30s, then to 580/230A at 1.7A/10s. 

Friday, March 14, 2025, 11:31 increasing BIAS/EE/EZL to 30/2.5/13 kV 

 Friday, March 14, 2025, 12:57    it appears that everything is stable. FC0 = 3.6e-10 A (VQSX).  beginning mass scan.  mass scan saved as '2025-03-14-13-30 MM a 0A.txt'

Friday, March 14, 2025, 14:12 mass separator focused at mass 115 to visualize indium.

Friday, March 14, 2025, 14:12  increasing MM current, following mass peak.

__ Current __ FC6 output __

    0A        1.9e-11

    1A        2e-11

    2A        2.22-11

    3A        4.6e-11

    4A        5.9e-10

    5A        3.6e-9

    6A        8.6e-9

 Friday, March 14, 2025, 14:39  conducting mass scan.   '2025-03-14-15-20 MM b 6A.txt'   after the scan, it was noticed that the mm current had failed at some point during the scan.

Friday, March 14, 2025, 15:27   conducting mass scan with 0A mm current.  saved as 2025-03-14-15-55 MM c 0A.txt

Friday, March 14, 2025, 15:55 ramping down HV

Friday, March 14, 2025, 15:56 ramping down TGHT TBHT to 0 (1A/30s) to assess and correct mm OL issue

Tuesday, March 18, 2025, 14:49 After bringing down vacuum to open test stand, the mass marker connection has been investigated. Two multipin connections have become disconnected, seems to be at a soldered junction.

Tuesday, March 18, 2025, 14:51    MM has been moved to different pins for operation. multipin will be fixed at a later date. Now test stand has been vacuumed down and TGHT TBHT brought to 580 230 for measurement.

Tuesday, March 18, 2025, 14:51 MM temperatures:

MM current    _____    temperature:

0A ___ 195.8°C

1A ___ 198.1

2A ___ 223.7°C

3A ___ 282.1°C

4A ___ 370.1­­­°C

5A ___ 486.4°C

6A ___ 631.6°C

Tuesday, March 18, 2025, 16:17 cooling TGHT TBHT at -1A/30s to 0A

Wednesday, March 19, 2025, 16:30 :  Mass marker replaced - new ceramic oven and sleeve, new reservoir with Indium - 0.102g.  Same transfer tube and target assembly

Wednesday, March 19, 2025, 16:45:  Install complete, roughing vacuum

Wednesday, March 19, 2025, 17:07  Turbopumps on

Thursday, March 20, 2025, 10:00 :  Water cooling on. Increasing TGHT TBHT to 580 230 at 1A/30s.

Thursday, March 20, 2025, 12:00 :  at ~200A 200A, increased heating rate to 1A/10s

Thursday, March 20, 2025, 13:45 increasing HV BIAS/EE/EZL to 30/2.5/13 kV 

Thursday, March 20, 2025, 14:32   at HV now, stable. Beginning mass scan.    

 Thursday, March 20, 2025, 15:15  magnet positioned at mass 115

Friday, March 21, 2025, 11:08   Temperature testing

Current ___ Temperature

0A     184.5

1A     187.2

2A     208.3

3A     268.7

4A     374.1

5A     419.2

6A     495.8

 Friday, March 21, 2025, 12:09   cooling TGHT TBHT at 1.7A/10s to make Faraday cage accessible for controls work

                           decreased cooling rate to 1A/20s for final 100A. at 14:00, test stand was opened for controls work.

Wednesday, March 26, 2025, 10:08   Turbo pumps switched off for venting and changing the mass marker reservoir

Wednesday, March 26, 2025, 18:01  Chamber opened, MMR replaced with MMR3, roughed, now turbopumps on.

Thursday, March 27, 2025, 12:38 TGHT TBHT brought up to 580 230 at 1A/30s for 100A and then 1.7A/10s for the rest. now increasing  HV BIAS/EE/EZL to 30/2.5/13 kV 

 Thursday, March 27, 2025, 13:58    at high voltage, beginning mass scan.   (h)

Thursday, March 27, 2025, 14:37    Magnet at 115, measuring beam output with increases of MM current

current ___ FC6 output

0A    8.2e-11

1A    8.2e-11

2A    8.6e-11

3A    1e-10

4A    1.88e-10

5A    5e-10

6A    8.7e-10

Thursday, March 27, 2025, 15:26 beginning mass scan at MM 6A. --- MM Current failed at the beginning of the mass scan. data still collected - indium peak lower than expected due to gradual cooling. mass scan saved (i) 2025-03-27_15-32 mm i 6A-0A.txt

Thursday, March 27, 2025, 15:33   cooled 0A mass scan beginning - (j) 2025-03-27_16-13 mm j 0A.txt

Thursday, March 27, 2025, 16:32  decreasing HV to 0

Friday, March 28, 2025, 09:13  spinning down turbo pumps to vent system. Must *begin* to repair/replace the multipin connection. - will affix twisted pair to two appropriate channels for IGLIS AC

Tuesday, April 08, 2025, 12:26   spinning down turbo pumps 

 Wednesday, April 09, 2025, 15:36  Twisted pair wire shielded, routed and crimped for iglis and high(er) current purposes. multipin channels 8 and 9.

                 roughing.

 Wednesday, April 09, 2025, 16:26   turbo pumps on

Thursday, April 10, 2025, 09:43    beginning heating - TGHT TBHT to 580 230 at 1A/30s

Thursday, April 10, 2025, 10:41     at 100A100A. increasing ramp rate to 1.7A/30s

Thursday, April 10, 2025, 11:39 increasing HV BIAS/EE/EZL to 30/2.5/13 kV 

 Thursday, April 10, 2025, 14:49   mass scan at 8A. Frequent sparking, ~1/min but doesn't appear to be affecting anything. no affect on optics or power supplies.  appears to be inside TS chamber as well.   mass scan saved (l 8A) 2025-04-10_15-04 mm l 8A.txt

Thursday, April 10, 2025, 14:50   MMR current decreased to 6A. waiting to cool to begin mass scan. sparks have stopped .

Thursday, April 10, 2025, 15:08  beginning mass scan.  (m 6A)  saved. 2025-04-10_15-34 mm m 8A.txt

Thursday, April 10, 2025, 15:34  MMR current 0A. repeat mass scan after cooled. (n 0A) saved.  2025-04-10_16-10 mm n 0A.txt

Thursday, April 10, 2025, 16:02 voltages to 0 for temperature testing

Current ___ Temperature

0A    205     

1A     205.5 

2A     227    

3A     268    

4A     327    

5A     391    

6A     462      

7A     546

8A      645.6

Thursday, April 10, 2025, 16:51    cooling TGHT TBHT at 1A/30s

 Friday, April 11, 2025, 09:00  spinning down turbo pumps to vent chamber. must replace source cup (p2n style --> old style)

Friday, April 11, 2025, 09:56  opened VV1 to begin venting the chamber. 

Friday, April 11, 2025, 15:39    P2N source cup removed, old source cup installed for repeat test. roughing chamber now.

 Friday, April 11, 2025, 16:05   turbo pumps on

Monday, April 14, 2025, 09:43  Water cooling on. TGHT TBHT ramping up at 1A/30s to 580A/230A

Monday, April 14, 2025, 12:57 increasing HV BIAS/EE/EZL to 30/2.5/13 kV 

Monday, April 14, 2025, 16:53   This trip has caused some sort of communication issue with the TGHT, This caused TGHT to be 'stuck' at 580A. I had to eventually cut power to the supply and have power cycled it. have not been able to restore power to it remotely

Fixed TGHT. Was able reset it locally after opening the cage.

Tuesday, April 15, 2025, 08:06   Turbo pumps off to vent, remove target and examine. 

Tuesday, April 15, 2025, 08:43   VV1 open 

Tuesday, April 15, 2025, 11:22   Target opened, taken apart, examined. Appears that the MMR transfer line had become dislodged from the target block, preventing transfer. Fixed this, reassembled, put back in TS.

Tuesday, April 15, 2025, 11:23  roughing.

Tuesday, April 15, 2025, 12:00  turbo pumps on.

Tuesday, April 15, 2025, 13:23  water cooling on. no effect on vacuum

Wednesday, April 16, 2025, 09:37 ramping TGHT TBHT 

Wednesday, April 16, 2025, 12:46  increasing HV BIAS/EE/EZL to 30/2.5/13 kV

Wednesday, April 16, 2025, 14:47 HV BIAS /EZL has been sparking occasionally, so increase has been slow

Wednesday, April 16, 2025, 15:05   mass scanning - 0A MMR. 

Wednesday, April 16, 2025, 15:07    spark external to TS (audible) tripped IG1 and shut down all power supplies. error thrown by TGHT as before.. cannot reset remotely. must discuss this error with controls.

Wednesday, April 16, 2025, 15:17  reset all and ramped up quick. running mass scan. 0A MMR  (q 0A) 2025-04-16_15-42 mm q 0A.txt

Wednesday, April 16, 2025, 15:43 heating MMR

current ___ FC6 output

0   4.4e-12

1   3e-12

2   4e-12

3   5e-12

4   6e-12

5   8e-12

6   4.8e-11

7   1.5e-10

8   9.1e-10

Wednesday, April 16, 2025, 16:31 mass scan 8A (r)   2025-04-16_16-31 mm r 8A.txt

Wednesday, April 16, 2025, 16:32 dropping HV to check temperatures

Current ___ temperature   (note. takes ~ 6 min to cool from max to min)

0A   197

1A   206

2A   218

3A   220

4A   300

5A   395

6A   500

7A   608

8A   735

Wednesday, April 16, 2025, 17:01  cooling TGHT TBHT at 1A/10s

Thursday, April 17, 2025, 08:37  turbo pumps off, spinning down 

Thursday, April 17, 2025, 11:15  venting

Using a broken LP-FEBIAD source. TGHT only.

Tuesday, May 31, 2022, 13:24: Roughing.

Tuesday, May 31, 2022, 13:54: TP1B on.

Tuesday, May 31, 2022, 14:06: TP1A on.

Tuesday, May 31, 2022, 14:13: IG1 on.

Wednesday, June 01, 2022, 07:41: Vacuum @ 2.13e-06T. Waterline FS#5 open.

Wednesday, June 01, 2022, 07:43: Power/Sources on.

Wednesday, June 01, 2022, 07:51: Auto-ramping TGHT to 580A @ 2A per min.

Monday, June 06, 2022, 07:09: Auto-cooling @ 2A per min. 

Wednesday, June 08, 2022, 07:07: Turbo pumps off.

Wednesday, June 08, 2022, 07:53: Venting.