Tuesday, August 18, 2020, 12:05: RP1 on

Tuesday, August 18, 2020, 12:10: RP1 off

Install Gas Ballast vapour port w/ filter.

Tuesday, August 18, 2020, 13:19: RP1 on

Disengage shipping locks*

Tuesday, August 18, 2020, 13:55: Turbo pumps on.

Tuesday, August 18, 2020, 14:02: TP1 A trip. TSG:CG1A pressure issue. Remove filter port on Gas ballast. Add blank.

TSG:CG1A pressure improving.

Tuesday, August 18, 2020, 14:37: TP1 A trip. TSG:CG1A pressure issue.

Tuesday, August 18, 2020, 14:48: Bypass BV1A. Switch on TP1 A.

Tuesday, August 18, 2020, 14:55: No trips* Bypass to remain until CG1A below 0.050T.

Tuesday, August 18, 2020, 21:58: Bypass removed. CG1A @ 0.041T.

Out Gas & MB1 check (Or leak check 2.0)

Ref: https://elog.triumf.ca/TIS/Test-Stand/809 - Leak Checks

Ref: https://elog.triumf.ca/TIS/Test-Stand/803 - Fault

WP I2020-08-19-1 For MB1 work

Thursday, September 03, 2020, 11:23: Vacuum remains stable @ 1.03e-06T.. PS on. Auto-ramp TGHT / TBHT to 350 / 150 A @ 2 A per min.

Thursday, September 03, 2020, 13:06: TS Tripped. Vacuum Spikes again. Appears the water leak is still ongoing.

Thursday, September 03, 2020, 13:49 Waterlines are all close. Vacuum becoming more stable.

Tuesday, September 08, 2020, 07:40: Ion Gauge & turbo pumps off.

Wednesday, September 09, 2020, 06:13: Venting.  

FS#2 - R TGHT (C) feed through and section had been removed and re-souldered both on the water block and the feed through.

Tuesday, September 15, 2020, 09:47:  Roughing.

Tuesday, September 15, 2020, 10:47: TP1B on.

Tuesday, September 15, 2020, 14:35 :TP1A on.

Tuesday, September 15, 2020, 14:42 : IG1 on.

Wednesday, September 16, 2020, 07:44: Vacuum @ 6.00e-06T.

Wednesday, September 16, 2020, 07:47: FS#2 waterline opened. Vacuum stable @ 6.00e-06T.

Wednesday, September 16, 2020, 08:02: Vacuum @ 5.97e-06T. Vacuum stable.

Wednesday, September 16, 2020, 08:03: FS#3 open. Vacuum stable.

Wednesday, September 16, 2020, 08:09: FS#4 open. Vacuum stable.

Wednesday, September 16, 2020, 08:24: FS#5 open. Vacuum stable @ 5.91e-06T.

No vacuum spikes noted.

Wednesday, September 16, 2020, 08:42: PS on. Note: Once Vacuum reaches 3.5e-06T, begin auto-ramping.

Wednesday, September 16, 2020, 09:25: It appears the leak is still here. But very subtle. Vacuum @ 6.18e-06T. Many curse words uttered. PS off. Locked out. Purge waterlines.

Thursday, September 17, 2020, 08:21: Vacuum @ 3.32e-06T.

Thursday, September 17, 2020, 08:23: Opened FS#5.

Thursday, September 17, 2020, 08:55: Opened FS#4. Vacuum @ 3.12e-06T.

Thursday, September 17, 2020, 09:51: Opened FS#3. Vacuum @ 3.12e-06T

Thursday, September 17, 2020, 10:21: Opened FS#2 Vacuum @ 3.12e-06T.

Thursday, September 17, 2020, 10:52: Gradual climb on IG1. Vacuum @ 4.44e-06T.

Thursday, September 17, 2020, 10:53: IG1 & turbo pumps off. Purge water from FS#2.

Thursday, September 17, 2020, 11:37: Venting.

Checked: Upper line & Lower line independently. No obvious leak detected. Checked O-rings. Replaced w/ C-Seals.

Thursday, September 17, 2020, 13:31: Roughing.

Thursday, September 17, 2020, 14:06: TP1B on. 

Thursday, September 17, 2020, 19:11: TP1A on. 

Friday, September 18, 2020, 12:07: FS#2 opened. Vacuum @ 2.48e-06T 

Friday, September 18, 2020, 12:12: FS#2 Closed. Vacuum spiked to near 6.0e-05T. 

Friday, September 18, 2020, 12:15: FS#2 fully purged. 

Tuesday, September 22, 2020, 06:51: Ion gauge & Turbo pumps off. 

Tuesday, September 22, 2020, 08:10: Venting.

O-rings swapped for fresh new ones w/ vacuum grease on (C) & (D) water blocks.

Tuesday, September 22, 2020, 09:27: Roughing.

Tuesday, September 22, 2020, 10:10: TP1B on. 

Tuesday, September 22, 2020, 12:20: TP1A on. 

Tuesday, September 22, 2020, 15:02: Vacuum @ 2.97e-06T.

Tuesday, September 22, 2020, 15:05: Opened FS#2. No immediate response.

Tuesday, September 22, 2020, 15:13: Gradual vacuum spike to 2.6e-06T. Closed FS#2

Wednesday, September 23, 2020, 06:36: Ion gauge & turbo pumps off. 

Wednesday, September 23, 2020, 11:38: TP1B on only. IG1 on.

Wednesday, September 23, 2020, 15:37: LD:  0.0e-09 atm-cc/sec. Vacuum @3.9e-06T.

Wednesday, September 23, 2020, 15:38: Open valve to TP1B.

Wednesday, September 23, 2020, 15:41:

LD: 0.0e-09 atm-cc/sec. Vacuum @3.67e-06T.

Wednesday, September 23, 2020, 15:51: LD: 0.0e-09 atm-cc/sec. Vacuum @3.67e-06T. No response on LD.

Wednesday, September 23, 2020, 15:57: 70 PSI of He on line (C) TGHT Right side. LD: 0.0e-09 atm-cc/sec. Vacuum @3.73e-06T. Flush line

Wednesday, September 23, 2020, 15:59: LD: 1.7e-09 atm-cc/sec. & Rising.

Wednesday, September 23, 2020, 16:00: LD: 4.1e-09 atm-cc/sec & rising. Line (C) confirmed again.

Wednesday, September 23, 2020, 16:04: LD & He disconnected. IG1 & TP1B off. Remove (C) Right TGHT line in the morning. Will aim to replace the source tray side. Feed through side has already been done.

Thursday, September 24, 2020, 07:16: Venting. 

Remove FEBIAD & Source tray side R-TGHT line (C) from FS#2. Blank off with blind double block.

Thursday, September 24, 2020, 08:41: Roughing

Thursday, September 24, 2020, 09:12: TP1B on.

Thursday, September 24, 2020, 09:18: Ion gauge on.

Thursday, September 24, 2020, 10:17: TP1A on. 

Thursday, September 24, 2020, 14:20: Connect LD & Set-up He. Vacuum @ 2.92e-06T. LD: 0.0e-09 atm-cc/sec.

Thursday, September 24, 2020, 14:22: Open valve to TP1B.

Thursday, September 24, 2020, 14:24: Vacuum @ 2.95e-06T. LD: 2.2e-08 atm-cc/sec. 70 PSI of He on line (C) TGHT Return side.

Thursday, September 24, 2020, 14:30: Vacuum @ 2.74e-06T. LD: 1.5e-08 atm-cc/sec.

Minimal change.

 Tuesday, September 29, 2020, 04:50: IG1 off. Turbo pumps off.

He & Ar calibrated leak bottles in.

Tuesday, October 13, 2020, 12:33: Roughing.

Tuesday, October 13, 2020, 13:17: TP1B on.

Tuesday, October 13, 2020, 14:19: TP1A on. 

Tuesday, October 13, 2020, 15:44: Waterlines opened. Vacuum @ 9.58e-06T & dropping. Power on.

Tuesday, October 13, 2020, 15:49: Valve to Mini-pump was open & the pump happened to already be switched on.

Tuesday, October 13, 2020, 15:50: Open SV3 & SV4.

Tuesday, October 13, 2020, 15:55: Close mini-pump & switch off. SV3 & SV4. Briefly open/close SV5. Continue until vacuum stabilizes.

Tuesday, October 13, 2020, 15:59: SV5 open. Alt SV3 & SV4 w/ SV5 until stable.

Tuesday, October 13, 2020, 16:04: Gas lines SV3, SV4, SV5 open. Vacuum @ 9.96e-06T & dropping.

Tuesday, October 13, 2020, 22:30: PS on. Vacuum @ 2.13e-06T. Auto-ramping TGHT / TBHT to 300 / 150 A @ 1 A per min.  

Tuesday, October 13, 2020, 22:33: Anode* Short? Halt auto-ramping.

Tuesday, October 13, 2020, 22:35: Auto-ramping TGHT / TBHT to 100 / 50 A @ 1 A per min. Coil @ 10 A.

Wednesday, October 14, 2020, 05:19: Auto-ramping TGHT / TBHT to 300 / 150 A @ 1 A per min.  

Wednesday, October 14, 2020, 07:14: BIAS / EE / EZL to 20 / -1.5 / 10 kV. IV4 opened.

Wednesday, October 14, 2020, 10:30: Auto-ramping TGHT to 350 A @ 2 A per min.

Wednesday, October 14, 2020, 11:11: BIAS / EE / EZL to 30 / -1.5 / 13 kV. 

Wednesday, October 14, 2020, 11:12: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. 

Thursday, October 15, 2020, 14:13: MB1 connected.

Epics = Readback

10 A = 11.6 A

0.394 V = 0.39 V

Calibration required, but it's running.

Thursday, October 15, 2020, 14:33: Auto-Cooling. Tap down HV. 

Thursday, October 15, 2020, 14:36: Gas lines closed. 

Friday, October 16, 2020, 07:55: Power / sources off. IG1 off. Turbo pumps off.

Friday, October 16, 2020, 07:56: HS Waterlines purged.

Friday, October 16, 2020, 10:07: Venting.

Monday, February 22, 2021, 17:48 Roughing

Monday, February 22, 2021, 18:17: Turbos on.

Monday, February 22, 2021, 18:25: IG1 on.

Monday, February 22, 2021, 19:01: Gas lines refilled with |50 kPa| or argon. Gauge reads -40kPa.

Monday, February 22, 2021, 19:01: IG1@3.48e-5T

Monday, February 22, 2021, 19:01: Waterlines open

Monday, February 22, 2021, 19:06: IG1 @ 3.04e-5 T.

Tuesday, February 23, 2021, 08:34: IG1@1.56e-6T.

Tuesday, February 23, 2021, 08:43: BIAS/EZL/EE @ 30/13/1.5 kV, anode bias @ 200 V. No problems with the bias ramp up.  I will wait some time in here just to make sure it's OK, but it looks like the problem is solved now.  

Tuesday, February 23, 2021, 08:52:  BIAS/EZL/EE/AND @ 0.000 kV.

Tuesday, February 23, 2021, 08:55: Auto-ramp up TGHT/TBHT to 580/290 @ 4A/min 

Tuesday, February 23, 2021, 09:35:  Gauge reads -20kPa, that is, there was  a 20 kPa air incursion over 18 hours.

Tuesday, February 23, 2021, 9:36: Roughing and re-filling the gas lines. Gauge reads again -40 kPa 

 Tuesday, February 23, 2021, 11:30: BIAS/EZL/EE @ 30/13/1.5 kV, anode bias @ 200 V.

Tuesday, February 23, 2021, 11:31: IV4 open.

Tuesday, February 23, 2021, 11:47: Sparks when anode is @ 500 V. 

AS

Tuesday, February 23, 2021, 14:18: Mass & wire scans taken. Word doc attached.

FM

Tuesday, February 23, 2021, 22:17: All afternoon and evening running my code to get systematic measurements. They are still going but in summary:

For TGHT=580 A and TBHT=290 A, the temperature estimation is 1740 C, which is extremely cold for a FEBIAD. This explains why with this assembly I need to go around 310 to get something reasonable.

Tuesday, February 23, 2021, 22:52: Between 100 and 200 V the current always increases with coil current  > 50 A. The maximum increase factor is around 4. As the voltage increases the current stops increases at coil >50A.

 Tuesday, February 23, 2021, 23:59: Refilling gas lines.

TBHT to 310

Wednesday, February 24, 2021, 02:21: BIAS/EZL/EE/AND @ 0.000 kV:

Wednesday, February 24, 2021, 02:22: lowering tght/tbht to 520/250@ 4 A/min. 

Wednesday, February 24, 2021, 09:18: Opening cage to increase upstream pressure for the calibrated leak.. Will go to |100 kPa|

Wednesday, February 24, 2021, 09:26: No vacuum response.

Wednesday, February 24, 2021, 09:30: Cage locked.

Wednesday, February 24, 2021, 09:31: Auto-ramping TGHT/TBHT to 580/290 @ 4A/min

Wednesday, February 24, 2021, 09:42: BIAS/EZL/EE @ 30/13/1.5 kV, anode bias @ 200 V.

Wednesday, February 24, 2021, 11:23 :Opening cage to increase upstream pressure for the calibrated leak.. Will go to |250 kPa|

Wednesday, February 24, 2021, 11:31: Actually my two-stage regulator limits how much higher I can go. Limited to |200kPa| for and Ar leak rate of 4e-6 mbar l /s.

Wednesday, February 24, 2021, 11:33: Gas line refilled, no vacuum response.

Wednesday, February 24, 2021, 11:34: Cage locked.

Wednesday, February 24, 2021, 11:37 : BIAS/EZL/EE @ 30/13/1.5 kV, anode bias @ 200 V.

 Wednesday, February 24, 2021, 12:10: Mass scan completed.

Wednesday, February 24, 2021, 12:10: Auto-ramping TBHT to 310 A @ 2 A/min. This current should be around 1800-1850 C.

 Wednesday, February 24, 2021, 15:0: Temperature estimation says 1700 C, I wonder if the temperature is colde because of the high power target.

Wednesday, February 24, 2021, 15:02 : Argon signal is quite noticeable as roughing the gas lines drop the current down to 0 .

Wednesday, February 24, 2021, 18:55: Emittance scans have failed for both argon and m/q=28. It might be related to the very low intensity of the beam. FC0 reads ~10 nA at TBHT=310.

Change several parameters but only noise is recorded.

Wednesday, February 24, 2021, 18:57 Auto-ramping TBHT to 315 @ 1A/min

 Wednesday, February 24, 2021, 21:35: BIAS/EZL/EE/AND @ 0.000 kV:

Wednesday, February 24, 2021, 21:35: Cooling target @ 1 A/min

Thursday, February 25, 2021, 09:37: TGHT/TBHT @ 520,255 A IG1 @ 1.25e-6T. 

Thursday, February 25, 2021, 09:38: Auto-ramping TGHT/TBHT to 580/290 A @ 4 A/min 

Thursday, February 25, 2021, 09:46:  BIAS/EZL/EE @ 30/13/1.5 kV, anode bias @ 175 V.

Thursday, February 25, 2021, 14:04: Efficiency is decreasing as TBHT current increases. This seems to be correlated to the apparent reduction in estimated temperature coming from the anode current readback.

This could indicate that the increase in TBHT current heats up the TGHT-TBHT system but given this is a HP target, maybe the heat is dissipated through the target.

On previous tests both at the isac test stand and the evaporator 2, I have seen the effect of tght current in cathode temperature.

I will lower the TGHT current and I will keep increasing the TBHT current to see what happens.

Thursday, February 25, 2021, 22:46: Several attemps for efficiency measurements as a function of temperature. Partially sucessful

Thursday, February 25, 2021, 22:47: TGHT/TBTH @ 450/290.

 Thursday, February 25, 2021, 22:48: BIAS/EZL/EE/AND @ 0.000 kV:

Friday, February 26, 2021, 08:55: IG1 @ 1.07e-6 T.

Friday, February 26, 2021, 09:00:  BIAS/EZL/EE @ 30/13/1.5 kV, anode bias @ 175 V.

Friday, February 26, 2021, 17:20: All day running efficiency measurements as a function cathode input current.

With the colder target I estimated a maximum cathode temperature of 1820 coming from TBHT current=330 A.

Despite this being an estimated temperature from the anode drain current, the fact that the maximum total source beam current is only some tens of  nA, indicate very few electrons.

I finally managed tom take emittance measurements, so far the  parameters on the emittance rig page were not compatible with the tune I am using.

Friday, February 26, 2021, 19:26: Mass scan left running at this high temperature. 

MAss scan run at different coils

Friday, February 26, 2021, 23:18: Cooling TBHT to 290 @ 2 A/min.

 Friday, February 26, 2021, 23:19: BIAS/EZL/EE/AND @ 0.000 kV:

Saturday, February 27, 2021, 18:12: TBHT voltage stable, IG1 stable. Despite putting a lot of heat, the system seems to be OK.

Most of the day I have been setting up routines for automatic sweeps. 

they work fine

Sunday, February 28, 2021, 02:48: Experimental run will finish in about 1hr.

Code will set anode=5V and coil=0A.

Lot's of parameter mapping, efficiency measurements, some emittance scans, some rpms, some mass scans

Sunday, February 28, 2021, 23:12: Increasing voltage limit on the tbht heater from 3.001 to 3.5, just in case is necessary to reach 340 A. 

bunch of mass scans run.

Monday, March 01, 2021, 05:02: BIAS/EZL/EE/AND @ 0.000 kV:

Monday, March 01, 2021, 05:0: Auto-cooling TGH/TBHT to 0 A at 2 A/min 

AS

Monday, March 01, 2021, 09:00: Coil from 90 to 0 A. Power / sources off.

Monday, March 01, 2021, 09:02: IV4 closed / reset

Monday, March 01, 2021, 09:05: IG1 & Turbo pumps off.

Monday, March 01, 2021, 09:07: Purge FS#5

Monday, March 01, 2021, 10:44: Vented

Wednesday, March 10, 2021, 14:54: Roughing.

Wednesday, March 10, 2021, 14:57: BV1A open.

Thursday, March 11, 2021, 09:41: TP1B on. 

Thursday, March 11, 2021, 09:44: TP1A on. 

Thursday, March 11, 2021, 09:52: IG1 on. 

Monday, March 15, 2021, 07:50: Vacuum @ 6.91e-07T. Open waterlines.

Monday, March 15, 2021, 07:52: Vacuum ok.

Monday, March 15, 2021, 07:55: Power / sources on.

Monday, March 15, 2021, 07:56: TGHT / TBHT @ 10 A.

Monday, March 15, 2021, 07:57: BIAS / EE / EZL @ 1 / 0.5 / 1 kV. Anode @ 25 V. Coil @ 5 A.

Monday, March 15, 2021, 08:02: All sources ok. Set back to 0. Ready for remote operation. Await word from MCR on Cu DI water system.

ref: https://elog.triumf.ca/TIS/Test-Stand/864

Tuesday, March 16, 2021, 09:53: IV4 Open

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.

Note: SiC#42 replacement.

Saturday, June 18, 2022, 09:54: Roughing.

Saturday, June 18, 2022, 10:08: Data logger removed. Pins 4 & 5 grounded. Power on.

Saturday, June 18, 2022, 10:41: TP1B on.

Saturday, June 18, 2022, 10:48: TP1A on.

Saturday, June 18, 2022, 10:55: IG1 on.

Saturday, June 18, 2022, 11:13: Gases on. Cage closed up. SV5 remains on. SV4 (Argon tank) Closed.

Saturday, June 18, 2022, 11:14: Vacuum @ 2.49e-05T.

Saturday, June 18, 2022, 11:15: Waterline FS#5 opened.

Saturday, June 18, 2022, 11:22: Electrical check w/ IG1 bypass

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

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

Saturday, June 18, 2022, 11:23: All checks clear. Bypass removed. Ready for remote operation. Vacuum @ 2.14e-05T

Saturday, June 18, 2022, 21:34: Sources on. Vacuum @ 3.38e-06T. IV4 open. 

Saturday, June 18, 2022, 21:36: Optics on. Standard tune.

Saturday, June 18, 2022, 22:24: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min to out gas overnight.

Saturday, June 18, 2022, 22:55: BIAS / EE / EZL @ 2.5 / -0.5 / 1 kV. Anode @ 100V. Coil @ 10 A. Low settings left as a general electrical check to run as the target heats up.

Sunday, June 19, 2022, 16:37: Vacuum @ 1.60e-06T.

Sunday, June 19, 2022, 16:40: Open SV4 (Argon gas - W/ quick steps on procedure). Vacuum ok.

Sunday, June 19, 2022, 16:42: Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 A per min. 

Sunday, June 19, 2022, 19:48: BIAS / EE / EZL / Anode @ 0. Coil to 0. 

Sunday, June 19, 2022, 19:59: Anode tapped up manually to 400 V @ approx 1 V per second. 

Sunday, June 19, 2022, 20:14: Anode tapped up manually to 0 V @ approx 1 V per second.

Sunday, June 19, 2022, 20:14: Coil tapped up manually to 100 A @ approx 1 A per second.

Sunday, June 19, 2022, 20:15: Full Trip. Vacuum limit passed. TGHT / TBHT Went to 0 A

Sunday, June 19, 2022, 20:17: TGHT / TBHT @ 580 / 290 A.

Sunday, June 19, 2022, 20:31: Stable. Vacuum @ 4.21e-06T. 

Sunday, June 19, 2022, 20:58: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Anode @ 100 V. 

Sunday, June 19, 2022, 21:00: Coil @ 10 A. Vacuum @ 3.49e-06T. 

Sunday, June 19, 2022, 21:07: Begin mass & wire scans.

Sunday, June 19, 2022, 21:39: Scans complete.

Monday, June 20, 2022, 05:58: Further mass, wire, & emittance scans.

Monday, June 20, 2022, 06:29: Coil @ 40 A, Anode @ 300 V. Optics set to FM tune.

Monday, June 20, 2022, 06:59: Scans complete. Auto-cooling @ 3 A per min.

Monday, June 20, 2022, 07:03: Coil & Anode to 0 A / 0 V.

Monday, June 20, 2022, 07:07: BIAS / EE / EZL @ 0 kV.

Monday, June 20, 2022, 10:12: IV4 closed.

Monday, June 20, 2022, 10:13: Gases closed. IG1 off. Turbo pumps off.

Monday, June 20, 2022, 11:09: Venting.

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.

Monday, December 19, 2022, 12:06 : Tomislav changed the polarity of the anode power supply last week and everything has been closed up again. The anode wire was switched to feedthru J and the short there removed. Forgot to put the short on the tube before closing the top but it should be ok for these tests since it has the resistor still installed to keep it at some potential. Pumping out gas lines.

Monday, December 19, 2022, 12:46 : Anode voltage ramped to 500V no problems. BIAS\EE\EL at 30kV\-1kV\13kV. Starting heaters ramping to TGHT=600A TBHT=290A.

Tuesday, December 20, 2022, 08:23 : Cancelled heater ramp at 500A yesterday, resuming now.

Wednesday, December 21, 2022, 14:48 : Everything ramped down

Friday, January 06, 2023, 09:27: Turbo pumps off. - AS 

Monday, April 17, 2023, 14:03: Roughing.

Monday, April 17, 2023, 14:08: BV1A open.

Monday, April 17, 2023, 14:32: TP1B on.

Monday, April 17, 2023, 14:38: TP1A on.

Monday, April 17, 2023, 14:47: TP1A Timed out. Restarted it within 30 seconds & it's up to speed. IG1 on.

Tuesday, April 18, 2023, 11:49: Vacuum @ 3.68e-07T. Waterline FS#5 opened. Vacuum stable.

Tuesday, April 18, 2023, 11:52: Power / Sources on.

Tuesday, April 25, 2023, 12:20: Power / Sources off

Tuesday, April 25, 2023, 12:26: IG1 Off. TP1B & TP1A off.

Ceramic elbow installed on the anode.

Friday, May 05, 2023, 06:47: Roughing.

Friday, May 05, 2023, 07:24: TP1B on.

Friday, May 05, 2023, 07:34: TP1A on.

Friday, May 05, 2023, 07:43: IG1 on.

Friday, May 05, 2023, 12:12: Vacuum @ 6.91e-06T. FS#5 opened. Vacuum stable.

Friday, May 05, 2023, 12:16: Power/sources on. Gases set

Friday, May 05, 2023, 12:19: Optics on / set.

Friday, May 05, 2023, 12:21: Quick System ready check - OK. Manually set. 

TGHT / TBHT @ 5 / 5 A

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

Anode @ 100 V - 7.326mA

Coil @ 10 A.

Friday, May 05, 2023, 12:23: Ready for operation. All sources back to 0 A / 0 V. Optics remain. Vacuum continues down @ 6.70e-06T.

Monday, May 08, 2023, 08:21: IV4 open.

Monday, May 08, 2023, 08:25: Tap up Anode in steps @ 20 v per 20 seconds.

Anode @ 100 V = 4.884 mA

Anode @ 200 V = 6.105 mA

Anode @ 300 V = 7.326 mA

Anode @ 400 V = 7.326 mA  

Monday, May 08, 2023, 08:42: Anode tapped down to 20 V. 

Monday, May 08, 2023, 08:52: Coil tapped up to 70 A @ 7 A per minute. 

Monday, May 08, 2023, 09:12: Coil tapped back down to 0 A @ 7 A per minute.  

Monday, May 08, 2023, 09:15: Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 / 1 A per min.  

Monday, May 08, 2023, 09:20: BIAS / EE / EZL set to 10 / -1.0 / 5 kV. 

Monday, May 08, 2023, 14:37: TGHT / TBHT @ 580 / 290 A. BIAS / EE / EZL set to 30 / -1.5 / 13 kV. 

Monday, May 08, 2023, 14:38: Anode tapped up to 100 V @ 20 V per 20 seconds. Begin mass & wire scans.  

Monday, May 08, 2023, 15:01: Mass & wire scans complete. 

Monday, May 08, 2023, 18:59: Tap up Anode in steps @ 20 v per 20 seconds from 100 V.

Anode @ 100 V = 9.768 mA

Anode @ 200 V = 12.210 mA

Anode @ 300 V = 14.652 mA

Monday, May 08, 2023, 19:05: Anode @ 400 V = 17.094 mA

Monday, May 08, 2023, 19:18: Anode tapped down to 20 V. 

Monday, May 08, 2023, 19:24: BIAS / EE / EZL @ 1 / -0.5 / 1 kV 

Monday, May 08, 2023, 19:35: Coil tapped up to 70 A @ 7 A per minute. 

Monday, May 08, 2023, 19:49: Coil tapped back down to 0 A @ 7 A per minute. Vacuum rose to 6.20e-06T @ 70A. Stabilized back down around 2.24e-06T.

Monday, May 08, 2023, 19:53: Auto-cooling @ 1 A per minute. 

Tuesday, May 09, 2023, 06:59: Anode, & HV sources to 0 V. IV4 closed.

Tuesday, May 09, 2023, 07:35: SV5 closed. Power / sources off.

Tuesday, May 09, 2023, 07:38: IG1 off. TP1B & TP1A off.

Tuesday, May 09, 2023, 08:49: Venting.

Friday, February 16, 2024, 10:30: Roughing

Friday, February 16, 2024, 17:38: TP1B on. 

Friday, February 16, 2024, 17:47: TP1A on. 

Friday, February 16, 2024, 17:55: IG1 on. New Coil PS was installed.

Tuesday, February 20, 2024, 07:51: Waterline FS#5 open.

Tuesday, February 20, 2024, 07:58: Cage closed. PS on.

Tuesday, February 20, 2024, 08:01: Check. TGHT / TBHT manually to 5 / 5 A. Coil & Anode not responding.

Tuesday, February 20, 2024, 09:40: Pressure gauge reconnected within cage. Gas lines purged, refilled with argon. SV5 closed.

Tuesday, February 20, 2024, 09:48: System check 2: TGHT / TBHT manually to 5 / 5 A. BIAS / EE / EZL to 1 / -0.5 / 1 kV. Anode to 50 V.

Coil set to 15 A, did not adjust.

Tuesday, February 20, 2024, 12:04: Coil PS SW1-7 switch in was in an "Off" position & wouldn't allow the voltage signal through to the PS. Switched to "on". Coil tapped to 7 A manually & back to 0 A ok.

Tuesday, February 20, 2024, 12:24: SV4 open. SV5 is closed. Cage is closed.

Tuesday, February 20, 2024, 12:26: All power & sources on.

Tuesday, February 20, 2024, 12:29: Optics on & set w/ updated tune.

Tuesday, February 20, 2024, 12:56: PS off to switch to Cathode BIAS mode.

Tuesday, February 20, 2024, 14:20: TS to wired to Cathode BIAS mode as per ISK4563D. Cage closed up. PS on.

Tuesday, February 20, 2024, 14:52: Anode/Cathode short. PS off & remove the cage again.

Tuesday, February 20, 2024, 15:20: IG1 off. Chamber TP off.

Wednesday, February 21, 2024, 07:30: Venting.

Wednesday, February 21, 2024, 08:32: Short found on waterlines (E) to (D)

Wednesday, February 21, 2024, 08:34: IG1 Bypass in effect.

Wednesday, February 21, 2024, 08:37: BIAS / EE / EZL to 1 / -0.5 / 0.5 kV. Note* If voltage is put on the EE before the BIAS, a small amount of voltage also goes to the BIAS. To keep an eye on. Back to 0 V.

Wednesday, February 21, 2024, 08:40: Coil to 5 A, Anode to 50 V. OK. Back to 0 A / V

Wednesday, February 21, 2024, 08:41: TGHT / TBHT both to 5 / 5 A ok. Back to 0 A. All checks ok.

Wednesday, February 21, 2024, 08:42: IG1 Bypass removed.

Wednesday, February 21, 2024, 09:14: TP1B on.

Wednesday, February 21, 2024, 09:22: TP1A on.

Wednesday, February 21, 2024, 09:31: IG1 on.

Wednesday, February 21, 2024, 14:00: HV & Coil checks. OK. IV4 open.

Thursday, February 22, 2024, 08:17: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, February 22, 2024, 08:23: BIAS / EE / EZL @ 40 / -2.0 / 17 kV.

Thursday, February 22, 2024, 08:26:  BIAS / EE / EZL @ 45 / -2.0 / 19 kV. 2 large sparks on the tap up.

Thursday, February 22, 2024, 08:42: BIAS / EE / EZL @ 47.5 / -2.0 / 22 kV. Small sparks on the tap up

Thursday, February 22, 2024, 09:00: BIAS / EE / EZL @ 50 / -2.0 / 25 kV. Sparks on the tap up.

Thursday, February 22, 2024, 09:10: One spark. Reset steering & optics.

Thursday, February 22, 2024, 09:17: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, February 22, 2024, 09:39: Coil @ 80 A. Tapped up manually at 4 A per min approx. Vacuum @ 5.13e-07.

Thursday, February 22, 2024, 12:06: Coil @ 0 A

Thursday, February 22, 2024, 12:10: Anode @ 100 V.

Thursday, February 22, 2024, 12:12: Anode @ 200 V.

Thursday, February 22, 2024, 12:16: Anode @ 500 V.

Thursday, February 22, 2024, 12:26: Anode @ 0 V.

Thursday, February 22, 2024, 12:38: BIAS / EE / EL @ 0 kV.

Thursday, February 22, 2024, 12:58: Auto-ramping TGHT / TBHT to 350 / 200 A @ 2 A per min. 

Thursday, February 22, 2024, 16:25: Vacuum @ 1.16e-06T. Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 A per min. 

Thursday, February 22, 2024, 18:35: TGHT / TBHT @ 580 / 290 A. 

Thursday, February 22, 2024, 18:45: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. FC0 @ 100nA = 7.71e-09 

Thursday, February 22, 2024, 18:48: Anode @ 100 V. Coil to 10 A. FC0 @ 100nA = 6.82e-09 

Thursday, February 22, 2024, 19:00: FC0 is stuck!!!. However it is not releasing HPA? Confirmed by the MCR over MS teams video chat. IV4 Closed. (Angry tech noises)

Thursday, February 22, 2024, 19:02: BIAS/ EE / EZL @ 0 KV. Anode & Coil to 0. 

Thursday, February 22, 2024, 19:07: Auto-cooling @ 2 A per minute. 

Thursday, February 22, 2024, 19:08: Closed SV4 & SV5. 

Friday, March 08, 2024, 06:59: Issues with FC0 & RP2 resolved. Soft start on TP6 initiated.

Friday, March 08, 2024, 07:06: Gas lines filled with Argon.

Friday, March 08, 2024, 07:08: Auto-ramping TGHT / TBHT @ 2 A per min to 350 / 200 A

Friday, March 08, 2024, 07:32: TBHT @ 41 A. TGHT @ 0 A?

Friday, March 08, 2024, 07:35: TGHT PS was physically off (Why???). Turned on. Manually tapped up to 25 A. Ok. Auto-ramping TGHT / TBHT @ 2 A per min to 350 / 200 A.

Friday, March 08, 2024, 08:05: TP6 tripped. Half way spun up. Soft start restarted.

Friday, March 08, 2024, 08:47: TP6 at speed. TP2 on.

Friday, March 08, 2024, 08:52: IG6 on.

Friday, March 08, 2024, 09:05: Optics on. Quick checks on BIAS / EE / EZL, Cathode (Anode), & Coil OK. 

Friday, March 08, 2024, 09:33: IV4 open. 

Friday, March 08, 2024, 10:18: Vacuum @ 2.43e-07T. Halted auto-ramping. Increase. Auto-ramping TGHT / TBHT @ 2 A per min to 580 / 290 A.

Friday, March 08, 2024, 13:35: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. 

Friday, March 08, 2024, 15:59: Mass & wire scans complete. Appear the anode PS is likely positive. Auto-cooling @ 2 A per min.  

Friday, March 08, 2024, 16:04: HV off. Gases closed. 

Monday, March 11, 2024, 23:09: Auto-ramping TGHT / TBHT to 580 / 290 A @ 1 A per min. 

Tuesday, March 12, 2024, 09:45: Gas on.

Tuesday, March 12, 2024, 09:51: BIAS / EE / EZL @ 30 / -1.5 / 13

Tuesday, March 12, 2024, 10:36: Anode @ 100 V. Coil @ 20 A.

Tuesday, March 12, 2024, 11:19: Mass & Wire scans complete.

Tuesday, March 12, 2024, 13:51: EE at -2.5. mass scan

 Tuesday, March 12, 2024, 13:55: EE at -1.5. Coil at 0A. mass scan

Tuesday, March 12, 2024, 14:11: Coil at 20A, TSH:ANODE at  0V. mass scan 

Tuesday, March 12, 2024, 14:30: coil and anode on. gas turned off. 

Tuesday, March 12, 2024, 16:59: decreasing bias 

Tuesday, March 12, 2024, 17:07 decreasing TBHT TGHT to 0, 1A/s 

FM-SW calibrated leak installed.

Friday, April 26, 2024, 13:48: Roughing.

Friday, April 26, 2024, 14:20: TP1B started.

Friday, April 26, 2024, 14:26: TP1B Green. OK.

Friday, April 26, 2024, 14:30: TP1A on.

Monday, April 29, 2024, 08:44: Vacuum @ 4.58e-07T. Waterline FS#5 open. Vacuum ok.

Monday, April 29, 2024, 08:50: Power / sources on. Tap up check. TGHT / TBHT to 5 / 5 A. BIAS / EE / EZL to 1 / -0.5 / 1 kV. Anode to 100 V. Coil to 4 A. Ok. Tap back down.

Monday, April 29, 2024, 10:44: IV4 open.

-BB:

Monday, April 29, 2024, 11:07: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Monday, April 29, 2024, 11:12: BIAS / EE / EZL @ 40 / -1.8 -2.0 / 17 kV.

Monday, April 29, 2024, 11:19: BIAS / EE / EZL @ 43 / -2.0 / 19 kV.

Monday, April 29, 2024, 11:23: BIAS / EE / EZL @ 45 / -2.0 / 19 kV.

Monday, April 29, 2024, 11:27: BIAS / EE / EZL @ 47.5 / -2.2 / 22 kV.

Monday, April 29, 2024, 11:33: BIAS / EE / EZL @ 50 / -2.5 / 25 kV.

Monday, April 29, 2024, 12:05: 30 minutes @ 50 kV. 3 sparks at the very end. 2 inside and 1 outside.

Monday, April 29, 2024, 12:09: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Vacuum @ 4.67e-07T. Start tapping up coil.

Monday, April 29, 2024, 12:32: Coil @ 80 A. Tapped up manually at 4 A per min approx. Vacuum @ 5.2e-07T

Monday, April 29, 2024, 14:00: Vacuum @ 7.20e-07T (30-60 min depending on whether the out gassing levels or begins to decrease)

Monday, April 29, 2024, 14:02: Coil @ 0 A.

Monday, April 29, 2024, 14:05: Anode @ 100 V.

Monday, April 29, 2024, 14:07: Anode @ 200 V.

Monday, April 29, 2024, 14:09: Anode @ 500 V.

Monday, April 29, 2024, 14:11: Anode @ 0 V.

Monday, April 29, 2024, 14:33: HV @ 0 V.

Monday, April 29, 2024, 14:34: Auto-ramping TGHT / TBHT to 350 / 150 @ 2A per minute.

Tuesday, April 30, 2024, 07:18: Auto-ramping TGHT / TBHT to 580 / 290 @ 2A per minute. 

Tuesday, April 30, 2024, 13:44: Gas lines purged & refilled with Ar.

Tuesday, April 30, 2024, 13:48: optics set.

Tuesday, April 30, 2024, 13:51: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Tuesday, April 30, 2024, 13:56: Anode @ 100 V. Coil @ 20 A

Tuesday, April 30, 2024, 13:59: Reset / Cfg MB1

Tuesday, April 30, 2024, 14:40: Initial mass & wire scans complete.

Tuesday, April 30, 2024, 15:07:  Argon gas lines purged. 

Tuesday, April 30, 2024, 15:07:  Mass scan repeated.

Tuesday, April 30, 2024, 15:42:   Gas on. Magnet set to 40.1 mass/charge. Anode & coil vs fc6 output optimization scan started. 0-90A coil and 0-400V anode.

Tuesday, April 30, 2024, 15:55:   Vacuum is noticeably rising. If it reaches 5e-6T, will terminate the scan.

Tuesday, April 30, 2024, 15:59:  rate of increase appears to be slowing and reaching a plateau.

Tuesday, April 30, 2024, 16:01:    optimization data at measure_id=6058.  image at bottom.

Tuesday, April 30, 2024, 16:03: COIL and anode set to 0. decreasing BIAS/EZL/EE to 0V

Tuesday, April 30, 2024, 16:12: decreasing TGHT TBHT at 1A/30s to 0

 Wednesday, May 01, 2024, 09:38:   TP1B and TP1A turned off, winding down

 Wednesday, May 01, 2024, 10:1: VV1 open, venting.  Water cooling off. purged lines

Wednesday, July 31, 2024, 18:47: Roughing.

Wednesday, July 31, 2024, 19:24: TP1B on.

Wednesday, July 31, 2024, 19:30: TP1B at speed. Backing pressure CG1A @ 0.212T.

Wednesday, July 31, 2024, 19:33: TP1A Started. CG1A @ 0.164T.

Wednesday, July 31, 2024, 19:41: TP1A at speed. Whining a bit, but it's alive.

Wednesday, July 31, 2024, 19:42: IG1 on.

Thursday, August 01, 2024, 08:00: Vacuum @ 3.14e-0T. Waterline FS#5 open. Vacuum ok. CG1A @ 0.028T.

Thursday, August 01, 2024, 08:04: IV4 open.

Thursday, August 01, 2024, 08:09: Cage closed up. PS / Sources on. Note* TGHT/TBHT breakers were on. Anode was off. All "On" now.

Thursday, August 01, 2024, 08:13: Manual tap up checks. TGHT / TBHT @ 5 / 5 A. Anode @ 100 V / 15.873 mA. Coil PS acting up. Set to 7 A, displays 9.87A & fluctuates.

Thursday, August 01, 2024, 08:19: Anode to 0 V. Coil reduced to 0 A, however still reads back 4.15 A on epics. PS @ 0A.

Thursday, August 01, 2024, 08:24: Cage open. HV sources off. Coil back to 7A. Epics shows 9.82-10.11A (Blue). Fluctuates, PS direct reading @ 7A - Steady.

Thursday, August 01, 2024, 08:39: Cage closed up. HV sources back on.

Thursday, August 01, 2024, 08:40: BIAS / EE / EZL set to 1 / -0.5 / 1 kV. Anode to 100 V / 15.873 mA. Coil remains @ 7A. Epics 10.35A (Blue) Fluctuates still. PS direct reading @ 7A.

Thursday, August 01, 2024, 08:49: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, August 01, 2024, 08:54: BIAS / EE / EZL @ 35 / -1.8 / 15 kV.

Thursday, August 01, 2024, 08:56: BIAS / EE / EZL @ 40 / -2.0 / 17 kV.

Thursday, August 01, 2024, 08:57: 1 Spark. External - Audible.

Thursday, August 01, 2024, 09:01: Anode @ 200 V / 17.094 mA. Vacuum @ 2.75e-06T.

Thursday, August 01, 2024, 09:04: Anode @ 300 V / 18.315 mA.

Thursday, August 01, 2024, 09:05: Anode @ 400 V / 19.536 mA.

Thursday, August 01, 2024, 09:05: Anode @ 500 V / 20.757 mA. Interesting, the coil epics read back (Blue) moved to 6.98 (7) A.The coil read back stability appears to have occurred in conjunction with the 8:57am spark*.

Thursday, August 01, 2024, 09:17: 20 min stable. Can assume the spark was the coil instability discharging. Coil remain stable reading @ 7A. BIAS / EE / EZL @ 40 / -2.0 / 17 kV (20 min). Anode @ 500 V / 19.536 mA. (10 min+).

Thursday, August 01, 2024, 09:29: BIAS / EE / EZL to 0 kV. Anode to 0.

Thursday, August 01, 2024, 09:36: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 @ per min.

Thursday, August 01, 2024, 09:37: Tap up coil to 10 A. Stable. Read back on all ends match up.

Thursday, August 01, 2024, 09:39: Coil @ 20 A. Stable. Hold. Vacuum @ 2.66e-06T.

Thursday, August 01, 2024, 10:05: Coil @ 30 A. Vacuum @ 2.66e-06T.

Thursday, August 01, 2024, 10:13: Coil @ 40 A. Vacuum @ 2.68e-06T.

Thursday, August 01, 2024, 10:18: Coil @ 50 A. Vacuum @ 2.66e-06T.

Thursday, August 01, 2024, 10:24: Coil @ 60 A. Vacuum @ 2.66e-06T.

Thursday, August 01, 2024, 10:27: Coil @ 70 A. Vacuum @ 2.77e-06T.

Thursday, August 01, 2024, 10:32: Coil @ 80 A. Vacuum @ 3.03e-06T. Note* Coil was cleaned prior to installation & acrylic within dissolved. Successful run on coil.

Thursday, August 01, 2024, 10:43: Coil to 0 A. However in the last 20 A, the read back & epics did not match again. Slowly discharging on epics, although the PS read back was accurate.

Thursday, August 01, 2024, 13:29 FBP:  Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 A per min . IG1:3.56e-6.

Thursday, August 01, 2024, 16:00: AS - Aborted target ramping. TGHT / TBHT @ 448 / 248 A. Vacuum limited at 5.0e-06T. Allow to out gas. Continue tomorrow am.

Friday, August 02, 2024, 06:01: Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 A per min. Vacuum: 1.60e-06T.

Friday, August 02, 2024, 08:28 turning on HV

Friday, August 02, 2024, 08:35 BIAS / EE / EZL @ 30 / -1.5 / 13 kV. No issues.

Friday, August 02, 2024, 08:40 Same kind of sparks as the previous thin foil Ta observed

Friday, August 02, 2024, 08:49 Bias lowered to 20kV

Friday, August 02, 2024, 10:39 HV issues could not be identified, we recorded some sparks from within the target near the multipin and TBHT. Outgassing coil and running mass scan. Source tray to be thoroughly checked after retrieving the target. 

Friday, August 02, 2024, 15:04  gradually increased COIL current to 100A over time while monitoring vacuum to ensure no heater trips. Vacuum now at 2.4e-6 T

Friday, August 02, 2024, 15:05 increasing BIAS / EE / EZL to 30 / -1.5 / 13 kV 

Friday, August 02, 2024, 15:26   now at  BIAS / EE / EZL to 30 / -1.5 / 13 kV  --- first spark at 30kV. 

Friday, August 02, 2024, 15:37   sparking occurring at 4-5min intervals. set anode to 120V, coil to 40A. finding Ar peak via scan.   Argon operated at 0.5 bar.

Friday, August 02, 2024, 15:57   Ar peak located at 95.5332A. on magnet. tested gas on / off to confirm - current at FC6 = 1.37 nA

Friday, August 02, 2024, 16:02  ran febiad coil/anode scan. 

Friday, August 02, 2024, 16:33  data at test number = 7462 can be further visualized using the shared jupyter notebook code.  data taken at anode voltage 260V was disrupted due to a spark derailing a number of optics elements in the beamline. they were soon corrected, but this data was missed.

 Friday, August 02, 2024, 16:34   -   mass scan with  180V 70A      (Argon ON) ---- doesn't seem to be recording background noise well. ie the common background recording artifact is present. records constant numbers instead of numbers in range (1e-13,5e-12). often appears in mass scan image at slants 

Friday, August 02, 2024, 17:07    -   mass scan rerun after switching off argon and pumping down the lines. however, only run from mass 49 down, as the signal above was completely blank

Friday, August 02, 2024, 17:25  ramping down bias ee and ezl

 Friday, August 02, 2024, 17:45  decreasing TGHT and TBHT to 0a at 1A/30s

ABC 123 blah blah blah...

link to old e-log

Test stand vented

Friday, September 23, 2011, 16:3: The connection on the 9-pin connector for FEBIAD targets showed burn marks from the previous FEBIAD tests. Corresponding mark was found on the connector on the target side. Because of this the upper and lower 9-pin connectors were swapped to have a clean connector for the next FEBIAD target.

Anders Mjos wrote:

Friday, September 23, 2011, 16:3: The connection on the 9-pin connector for FEBIAD targets showed burn marks from the previous FEBIAD tests. Corresponding mark was found on the connector on the target side. Because of this the upper and lower 9-pin connectors were swapped to have a clean connector for the next FEBIAD target.

 See attachment#1: 9-pin-connector.jpg 

• While testing SiC#26 a leak was discovered on the water line to the heat shield. The leak was in the right joint (see attachment). The heat shield water lines were removed from the test stand and repaired in the Machine Shop. 
• Kapton was added to the FEBIAD coil line to prevent it from shorting to the target heater line (see attachment).