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.

Wednesday, June 23, 2021, 12:22: Roughing.

Wednesday, June 23, 2021, 13:22: TP1B on.

TP1B tripped.

Wednesday, June 23, 2021, 15:05: TP1B was restarted.

Wednesday, June 23, 2021, 15:15: TP1B on.

Wednesday, June 23, 2021, 16:21: TP1A started.

Wednesday, June 23, 2021, 16:30: IG1 on.

Wednesday, June 23, 2021, 17:53: FS#5 opened. Vacuum @ 7.52e-06T

Wednesday, June 23, 2021, 17:56: Vacuum Stable. Power on. TGHT / TBHT on.

Thursday, June 24, 2021, 05:40: Auto-ramping TGHT / TBHT to 300 / 150 A @ 2 A per min. 

Thursday, June 24, 2021, 09:00: IV4 Opened.

Thursday, June 24, 2021, 09:02: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Thursday, June 24, 2021, 09:10: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Optics on & set

Thursday, June 24, 2021, 12:52: Mass / Wire scans complete

 Thursday, June 24, 2021, 14:00: Auto-cooling @ 2 A per min.

 Thursday, June 24, 2021, 14:08: Auto-cooling aborted. TGHT / TBHT back to 580 / 230 A. Checking the emittance rig.

Thursday, June 24, 2021, 22:20: Auto-Cooling & HV off. - CB

Friday, June 25, 2021, 05:32: Sources off. IV4 closed. IG1 & Turbo pumps off.  

Friday, June 25, 2021, 07:09: IV4 reset. Power off. Venting.

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.

Monday, October 04, 2021, 15:38: Roughing.

Monday, October 04, 2021, 16:08: TP1B on. 

Monday, October 04, 2021, 16:15: TP1 A on. 

Monday, October 04, 2021, 16:41: IG1 on.

Tuesday, October 05, 2021, 06:47: Vacuum @ 4.09e-06T.

Tuesday, October 05, 2021, 06:49: Waterlines opened. Vacuum stable.

Tuesday, October 05, 2021, 06:50: Power / sources on.

Tuesday, October 05, 2021, 06:52: Auto-ramping TGHT to 580 A @ 2 A per min.

Wednesday, October 06, 2021, 05:44: Auto-cooling @ 3 A per min. Vacuum @ 2.37e-06T.\

Wednesday, October 06, 2021, 09:37: Power / sources off.

Wednesday, October 06, 2021, 09:38: IG1 off. TSG:TP1 A & B off.

Wednesday, October 06, 2021, 11:11: Venting. Waterlines off.

Edit* Switched from ITW to ITE. on station icon - AS.

Friday, November 12, 2021, 13:01: BV1B open. Roughing.

Friday, November 12, 2021, 13:05: BV1A open.

Friday, November 12, 2021, 13:34: TP1B on.

Friday, November 12, 2021, 13:42: TP1A on.

Friday, November 12, 2021, 13:50 : IG1 on. TMS:TP2 trip. Fast reset. OK. Vacuum @ 3.54e-05T. Waterline FS#5 open.

Friday, November 12, 2021, 13:53: Vacuum @ 2.12e-05T. Ok

Friday, November 12, 2021, 13:54: Power / sources on.

Monday, November 15, 2021, 09:00: Auto-ramping TGHT / TBHT to 350 / 150 @ 3 A per min. IV4 open. TMS:VCB1 not functioning. Controls group notified.

Monday, November 15, 2021, 09:40: Optics set minus TMS:VCB1 

Monday, November 15, 2021, 11:16: Auto-ramping TGHT / TBHT to 580 / 230 @ 2 A per min.

Monday, November 15, 2021, 11:34: TMS:VCB1 fixed. Optics set ok.

Monday, November 15, 2021, 11:43: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Monday, November 15, 2021, 15:44: Mass & wire scans complete. OK. HV to 0 kV. IV4 closed.

Tuesday, November 16, 2021, 06:16: Auto-cooling TGHT / TBHT @ 2A per min.

Tuesday, November 16, 2021, 11:13: Power / sources off.

Tuesday, November 16, 2021, 11:14: IG1. Turbo pumps off.

Tuesday, November 16, 2021, 12:12: Venting.

Beginning of May:

The cabling on the top of the test stand was changed to adapt for P2N testing. The TGHT and COIL PS were disconnected, and their DC cable terminals were connected instead to the TDK-LAMBDA P2Nheaters. The configuration on top of the ITS module is the following:

TBHT+ = A

TBHT- = B

MASTER+ = D

MASTER- = C

SLAVE+ = G/E

SLAVE- = F/H

Friday May 6th, afternoon

Once the pressure was almost stable in the low E-6 torr range, the first rampup was conducted up to ~600 A and the I,V parameters looked similar to previous P2N units. More tests to full current happening next week.

Monday, May 09, 2022, 09:29

P2N unit is being heated now, the automatic ramping utility is ramping the TDK-LAMBDAs while the TBHT is being increased manually.

Monday, May 09, 2022, 10:31

A voltage event happened, the TBHT voltage increased frmo 0.64 V to 0.73 V, while the P2Nheater dropped from  1.73 V to 1.56 V. 

Monday, May 09, 2022, 12:19

At P2NHT=950A it was noticed that one leg of the P2N was glowing much more than the other, the ramping was first stopped and then ramped down.

Now the P2NHT=282A and TBHT=47A

Tuesday, May 10, 2022, 09:32

Test stand vented and target inspected, there is no obvious sign of damage or misconnection on the tantalum assembly. Some resistance measurements were taken across target elements and connections: 

Screw on copper L to bottom flexy leg L = 117

Bottom flexy leg L to top flexy leg L = 24 / 0 (?)

top flexy leg L to bottom elephant leg L = 64

elephant L to elephant R = 360

top flexy leg R to bottom elephant leg R = 69

Screw on copper R to bottom flexy leg R = 125

Tuesday, May 10, 2022, 11:39

This morning, the target was inspected but nothing major was noticed, hence it was put back in the ITS for heating.

Tuesday, May 10, 2022, 17:40

Target being ramped: so far all good, total current in P2NHT=690A and TBHT=116A

A current measuring clamp was used to measure current in the 4/0 cables. The only bad thing is that the slave outputs half the current than the master, making the cables hotter (30deg vs 24deg).

Currents:

A-B ~116 A (TBHT)

C~468

E~124

G~102

Tuesday, May 10, 2022, 17:45

Event: reduction in P2NHT voltage and increase in TBHT voltage. After letting the PS ramp, it was noticed that the P2NHT voltage accelerated its increased, and the left leg started glowing like the previous time. The current was immediately ramped down, but still there was a voltage spike upwards in the P2NHT. 

While the leg was glowing hot, the current between feedthroughs H (P2NHT-) and I (HV common) was 90A. Now that the "episode" is not there any more, the current is zero

Wednesday, May 11, 2022, 10:55 

The previous P2N target had stainless steel screws at the bottom, where the copper L-shaped connector and the ta foil legs connect, which might have bene the cause of the gap opening and voltage increase. Now, the target manufactured for the previous beamtime is used, which does not have the cuts on the elephant ears but they are OK since don't interfere with the new IS cup design, and are ~3mm away from it.

Wednesday, May 11, 2022, 13:57 

 Start heating the new P2N assembly

Wednesday, May 11, 2022, 14:58

 Stopped at

P2NHT= 501 A

TBHT= 95 A

All currents seem to be flowing in the right path, with no current in the jumper between H-I

Wednesday, May 11, 2022, 15:26

Voltage step in P2NHT and TBHT happened again. Current sum:

A = 125 A

B = 125 A

C= 470 A

D=474 A

E = 118 A

F= 85 A

G = 95 A

H = 132 A

Short G-E = 5 A

Short F-H = 3 A

Jumper H-I = 62 A

The most likely explanation of this jump is that the IS tip touches the plasma electrode as shown in the drawing below which would result in some current flowing through the jumper, more investigations are needed

Thursday, May 12, 2022, 08:19

Test stand opened, there is some sign of burn in the plasma electrode, but it's hard to say if it's because they were touching. Aaron added a tantalum 0.040" shim to the plasma electrode to distance it further from the target IS tube

Thursday, May 12, 2022, 13:20

ITS with P2N target installed and pumping down 

Thursday, May 12, 2022, 15:50

P2NHT started ramping 

 Ref: https://elog.triumf.ca/TIS/Test-Stand/924. During testing, it was noted one leg was glowing vs the other. P2N assembly was removed & inspected. No contact or defects were found.

Tuesday, May 10, 2022, 10:05: Roughing.

Tuesday, May 10, 2022, 10:42: TP1 on.

Tuesday, May 10, 2022, 10:50: TP1A on.

Tuesday, May 10, 2022, 10:58: IG1 on. Vacuum @ 1.77e-05T & dropping.

Tuesday, May 10, 2022, 13:45: Vacuum @ 5.63e-06T. FS#5 Opened.

Tuesday, May 10, 2022, 13:58: Vacuum @ 5.27e-06T.

Target oven #45241-1 swapped out. SS bolts were in use on the legs.

Molybdenum screws in the legs on oven #44812-2. No target to ion source cup interference. 3mm gap - OK.

TGHT - R: 1.215

TGHT - L: 1.206

TBHT - R: 2.014

TBHT - L: 2.013

Cathode cable detached from feed-through (B).

Wednesday, May 11, 2022, 10:04: Roughing.

Wednesday, May 11, 2022, 10:33: TP1B on.

Wednesday, May 11, 2022, 10:43: TP1A on.

Wednesday, May 11, 2022, 10:51: IG1 on.

Wednesday, May 11, 2022, 13:43: Vacuum @ 5.43e-06T. FS#5 Open.

Wednesday, May 11, 2022, 13:45: Vacuum @ 5.36e-06T. OK.

PE shimmed & extended 1mm due to likely ion source contact.

Thursday, May 12, 2022, 10:41: Roughing.

Thursday, May 12, 2022, 11:26: TP1B on. 

Thursday, May 12, 2022, 11:35: TP1A on.

Thursday, May 12, 2022, 11:43: IG1 on.

Thursday, May 12, 2022, 11:48: Vacuum @ 2.65e-05T. FS#5 Opened. No immediate spike.

Thursday, May 12, 2022, 11:50: Vacuum @ 2.47e-05T & dropping.

Friday, May 13, 2022, 07:32: TP/IG off.

Friday, May 13, 2022, 09:51: Venting.

Thermocouples connected. Test HV

Wednesday, June 08, 2022, 09:33: Roughing.

Wednesday, June 08, 2022, 10:07: TP1B on.

Wednesday, June 08, 2022, 10:13: TP1B up to speed. TP1A on.

Wednesday, June 08, 2022, 10:21: TP1A up to speed. IG1 on.

Wednesday, June 08, 2022, 13:06: Waterline FS#5 Open. Vacuum @ 3.32-e06T.

Wednesday, June 08, 2022, 13:22: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. OK.

Wednesday, June 08, 2022, 13:26: One spark*.

Wednesday, June 08, 2022, 13:32: BIAS / EE / EZL @ 35 / -1.8 / 15 kV.

Wednesday, June 08, 2022, 13:33: Spark*

Wednesday, June 08, 2022, 13:38: BIAS / EE / EZL @ 40 / -2.0 / 17 kV

Wednesday, June 08, 2022, 13:42: Spark*. Outside the cage (EE) Feedthrough (K) Between a hex edge & one of the resistors on a plastic plate.

Wednesday, June 08, 2022, 13:50: BIAS / EE / EZL @ 45 / -2.3 / 19 kV

Wednesday, June 08, 2022, 14:18: We are back. Spark tripped the computer & shut it off while tapping up the HV. BIAS / EE / EZL @ 48.3 / 2.4 / 20 kV.

Wednesday, June 08, 2022, 14:22: BIAS / EE / EZL @ 50 / -2.5 / 20 kV.

Wednesday, June 08, 2022, 14:45: Spark* In the cage.

Wednesday, June 08, 2022, 14:57: Spark* In the cage.

Wednesday, June 08, 2022, 15:19: No sparks have occurred off the thermocouples.  Begin tapping down the HV.

Wednesday, June 08, 2022, 15:29: HV off. TGHT / TBHT Check @ 5 / 5 A OK.

Wednesday, June 08, 2022, 15:31: IV4 open.

Thursday, June 09, 2022, 05:14: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min. 

Thursday, June 09, 2022, 08:21: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. OK.

Thursday, June 09, 2022, 08:22: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min

Thursday, June 09, 2022, 08:29: Optics set. Standard tune.

Thursday, June 09, 2022, 10:22: Beginning wire & mass scans.

Thursday, June 09, 2022, 10:30: Adjust TSG:CB1 (ok)

Thursday, June 09, 2022, 11:40: Mass & wire scans complete. Tune set to standard. HV tests begin. BIAS / EE / EZL @ 35 / -1.8 / 15 kV.

Thursday, June 09, 2022, 11:45: BIAS / EE / EZL @ 40 / -2.0 / 17 kV

Thursday, June 09, 2022, 13:01: BIAS / EE / EZL @ 45 / -2.3 / 19 kV

Thursday, June 09, 2022, 13:13: Small spark* Outside the chamber, but in the cage.

Thursday, June 09, 2022, 13:22: BIAS / EE / EZL @ 50 / -2.5 / 20 kV. (One spark during the tap up. In the cage)

Thursday, June 09, 2022, 14:03: Small spark, barely audible.

Thursday, June 09, 2022, 14:11: Large spark in the cage* Computer was shut off. Got it back around 14:16

Thursday, June 09, 2022, 14:20: Reset steering, optics, IG6.

Thursday, June 09, 2022, 14:28: Begin tapping down HV

Thursday, June 09, 2022, 14:34: HV to 0.

Thursday, June 09, 2022, 14:36: Closed IV4. (Reset w/ screwdriver)

Friday, June 10, 2022, 09:58: Auto-Cooling @ 2 A per min.  

Monday, June 13, 2022, 10:16: IG1 off. Turbo pumps off.

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.  

 LP-SIS 45220-8 is empty & for testing only.

Tuesday, November 15, 2022, 11:00: Roughing.

Tuesday, November 15, 2022, 11:21: BV1A open. 

Tuesday, November 15, 2022, 12:40: TP1B on

Tuesday, November 15, 2022, 12:47: TP1A on

Tuesday, November 15, 2022, 12:49: T1A Currently spinning up. Distinct & loud hum noted. Contacting vacuum group.

Tuesday, November 15, 2022, 12:50: TP's off.

Tuesday, November 15, 2022, 12:55: TP1B restart. ok

Tuesday, November 15, 2022, 12:56: TP1A restart. Failed

Tuesday, November 15, 2022, 13:04: TP1A restart. Failed.

Tuesday, November 15, 2022, 13:05: Controller reset TP1A restarted. Failed. Visually confirmed that it has seized.

See elog# 946

Wednesday, November 16, 2022, 14:53: TP1B on

Wednesday, November 16, 2022, 14:56: TP1B at speed.

Wednesday, November 16, 2022, 14:58: TP1A on.

Wednesday, November 16, 2022, 15:07: TP1A at speed. IG1 on

Thursday, November 17, 2022, 07:14: Waterline FS#5 open. Vacuum stable @ 9.59e-07T

Thursday, November 17, 2022, 07:15: IV4 open.

Thursday, November 17, 2022, 07:18: PS & Sources on.

Thursday, November 17, 2022, 07:20: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min.

Thursday, November 17, 2022, 07:23: Optics set

Thursday, November 17, 2022, 07:32: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, November 17, 2022, 07:35: BIAS / EE / EZL @ 35 / -1.8 / 15 kV. 

Thursday, November 17, 2022, 07:38: BIAS / EE / EZL @ 40 / -2.0 / 17 kV

Thursday, November 17, 2022, 07:40: BIAS / EE / EZL @ 45 / -2.3 / 20 kV

Thursday, November 17, 2022, 08:40: No sparks over 1 hr.

Thursday, November 17, 2022, 08:43: HV reduced. BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, November 17, 2022, 10:06: Minor instability & sparks noted.

Thursday, November 17, 2022, 10:18: Consistent sparking. Visually confirmed on the TBHT insulator.

Thursday, November 17, 2022, 10:21: BIAS & EZL reduced to 20 / 10 kV.

Thursday, November 17, 2022, 10:51: HV stable for the last 15 minutes. Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Thursday, November 17, 2022, 14:02: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Stable

Thursday, November 17, 2022, 14:25: Mass & wire scans complete Empty LP-SIS No salts added.

Masses showed around mass:

-130-140

-39-40

-23-28

Thursday, November 17, 2022, 14:27: Outgassing continues.

Friday, November 18, 2022, 07:39: Mass & wire scans continued.

Traces masses:

-39-40

-23

Friday, November 18, 2022, 07:48: Auto-cooling @ 2 A per min.

Friday, November 18, 2022, 08:01: HV off.  

Monday, November 21, 2022, 06:44: Sources off & IV4 closed.

Monday, November 21, 2022, 06:45: IG1 off. Turbo pumps off. 

Wednesday, March 29, 2023, 09:15: Roughing.

Wednesday, March 29, 2023, 12:22: TP1B on.

Wednesday, March 29, 2023, 12:40: TP1A on.

Wednesday, March 29, 2023, 13:03: IG1 on.

Thursday, March 30, 2023, 08:23: Vacuum @ 3.42e-07T.

Thursday, March 30, 2023, 08:24: Waterline FS#5 open. Vacuum ok.

Thursday, March 30, 2023, 08:31: Manual Checks:

TGHT / TBHT @ 5 / 5 A ok

BIAS / EE / EZL @ 1 / 0.5 / 1 kV ok.

Thursday, March 30, 2023, 08:32: Anode @ 100 V ok. Coil @ 10 A ok.

Thursday, March 30, 2023, 08:56: Auto-ramping TGHT / TBHT to 350 / 100 A @ 2 A per minute.

Thursday, March 30, 2023, 11:45: Abort heating. TGHT / TBHT @ 233 / 100 A.

Thursday, March 30, 2023, 13:53: Auto-cooling @ 2 A per min 

Thursday, April 13, 2023, 11:07: New TMS:RP2 roughing pump installed: Elog 961

Thursday, April 13, 2023, 12:06: Gas lines opened. Ar gas @ 50 kPa

Thursday, April 13, 2023, 13:34: IG1 @ 2.27e-07T / IG6 @ 6.46e-06T. Open IV4

Thursday, April 13, 2023, 13:35: IG1 @ 3.66e-07T / IG6 @ 6.31e-06T7.

Thursday, April 13, 2023, 13:39: IG1 @ 4.03e-07T / IG6 @ 6.24e-06T. Power / Sources on.

Thursday, April 13, 2023, 13:42: Optics still require vacuum below 5.01e-06T on IG6. Wait.

Friday, April 14, 2023, 06:30: Optics still not configuring on TMS:Q2,Q5 or TMS:CB1. Controls group notified. 

Friday, April 14, 2023, 06:42: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2A per minute.  

Friday, April 14, 2023, 11:26: Optics fixed / set. Continue ramping to 580 / 270 A @ 2A per minute.

Friday, April 14, 2023, 12:27: Halt & hold ramping. Vacuum @ 5.01e-06T. 

Friday, April 14, 2023, 13:54: Ramping continued. 

Friday, April 14, 2023, 14:57: Halt & hold ramping. Vacuum @ 5.01e-06T. 

Friday, April 14, 2023, 15:38: Ramping continued. 

Friday, April 14, 2023, 15:47: TGHT / TBHT @ 580 / 290 A.

BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Anode @ 100 V. Coil @ 10 A

Friday, April 14, 2023, 15:51: Anode @ 400 V. 

Friday, April 14, 2023, 15:52: Anode back to 300 V / 41 mA. . Limited around 350 V. Current limit 50 mA.

Friday, April 14, 2023, 15:55: Adjusted current limit. Anode @ 400 V / 72.039 mA.

Friday, April 14, 2023, 15:58: Adjust Anode current limit further. 300 mA. 

Friday, April 14, 2023, 16:06: Anode stable. Reduced current limit to 150 mA. Anode @ 400 A / 91.575 mA

Friday, April 14, 2023, 16:35: Spark* during mass scan. Current limited on the Anode. Reset optics as well.  

Friday, April 14, 2023, 16:41: Reduced Anode to 100 V /  30.525 mA. Current limit reduced to 100 mA. 

Friday, April 14, 2023, 19:45: Auto-Cooling @ 2 A per min. HV, Coil, & Anode to 0. 

Monday, April 17, 2023, 07:35: Coil manually tapped up to 80 A @ 8 A per min.

Monday, April 17, 2023, 08:39: IV4 closed. 

Monday, April 17, 2023, 08:44: Power ? Sources off.

Monday, April 17, 2023, 08:45: IG1 off. Turbos pump TP1B & TP1A off.

Monday, April 17, 2023, 13:24: Venting.

Monday, April 17, 2023, 13:26: Odd, the venting is going very slowly. "Aiding" the venting process.

Target oven was inspected post TS. Risks of cracking due to crystallization.

Anode remade with a ceramic "elbow-cube". Empty target oven in use for testing.

Wednesday, April 26, 2023, 08:44: BV1B open. Roughing.

Wednesday, April 26, 2023, 08:46: BV1A open

Wednesday, April 26, 2023, 09:15: TP1B on.

Wednesday, April 26, 2023, 09:21: TP1A on.

Wednesday, April 26, 2023, 09:31: IG1 on.

Wednesday, April 26, 2023, 10:43: Vacuum @ 2.33e-06T.

Wednesday, April 26, 2023, 10:51: Waterline FS#5 opened. Vacuum stable.

Wednesday, April 26, 2023, 11:00: Gases set. IV4 opened. (Timed out repeatedly. Reset w/ screwdriver)

Wednesday, April 26, 2023, 11:16: 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.

Wednesday, April 26, 2023, 11:19: Optics set after reset.

Wednesday, April 26, 2023, 11:57: System tapped back down. Hold off for better vacuum. Vacuum @ 1.26e-06T. 

Thursday, April 27, 2023, 07:21: Vacuum @ 3.57e-07T

Thursday, April 27, 2023, 07:32: Tapped up coil to 70 A @ 7 A per min. Hold. Vacuum @ 3.68e-07T.

Thursday, April 27, 2023, 07:42: Vacuum @ 4.96e-07T. Tap down coil @ 7 A per min.

Thursday, April 27, 2023, 07:55: Auto-ramp TGHT / TBHT to 200 / 150 A @ 2 A per min.

Thursday, April 27, 2023, 09:47: TGHT / TBHT @ 200 / 150 A.

Thursday, April 27, 2023, 10:00: Tap up Anode in steps @ 20 v per 20 seconds.

Anode @ 100 V = 4.884 mA

Anode @ 200 V = 7.326 mA

Anode @ 300 V = 10.989 mA

Anode @ 400 V = 13.431 mA

Thursday, April 27, 2023, 10:12: BIAS / EE / EZL @ 10 / -1.0 / 5 kV.

Thursday, April 27, 2023, 10:21: Auto-ramp TGHT / TBHT to 400 / 200 A @ 2 A per min.

Thursday, April 27, 2023, 11:43: Anode tapped down to 100 V -  8.547mA. Some instability noted.

Thursday, April 27, 2023, 12:17: Auto-ramp TGHT / TBHT to 580 / 290 A @ 2 A per min.

Thursday, April 27, 2023, 12:18: Anode to 20 V.

Thursday, April 27, 2023, 14:09: Tap up Anode in steps @ 20 v per 20 seconds.

Anode @ 100 V = 9.768

Anode @ 200 V = 13.431 mA

Anode @ 300 V = 15.873 mA

Anode @ 400 V = 18.315 mA

Thursday, April 27, 2023, 14:19: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, April 27, 2023, 14:50: Mass & wire scans complete.

Thursday, April 27, 2023, 21:52 : Anode sat at 400V for ~8hrs. One spark early on when HV sparked, otherwise stable drawing ~18mA. Ramped anode to zero and BIAS/EL down to 10/5 for the night (Carla).

Friday, April 28, 2023, 07:01: Auto-cooling TGHT / TBHT @ 2 A per minute.  

Friday, April 28, 2023, 13:05: HV to 0. SV5 closed.  

Monday, May 01, 2023, 07:34: Power / Sources off. IG1 off. TP1A & TP1B off.

New TiC LP-FEBIAD Target installed.

Monday, May 01, 2023, 14:23: Roughing.

Monday, May 01, 2023, 21:42: TP1B on 

Monday, May 01, 2023, 21:49: TP1A on. 

Monday, May 01, 2023, 21:57: IG1 on. 

Tuesday, May 02, 2023, 08:39: Vacuum @ 1.16e-06T. Waterline FS#5 opened.

Tuesday, May 02, 2023, 08:48: Power / sources on. Source gas set. SV5 remains open.

Tuesday, May 02, 2023, 09:00: Optics set.

Tuesday, May 02, 2023, 09:13: System ready check - OK. Manually set.

TGHT / TBHT @ 5 / 5 A

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

Anode @ 100 V - 10.989 mA

Coil @ 10 A.

Tuesday, May 02, 2023, 10:12: Coil @ 70 A. Tapped up manually @ 7 A per minute.  

Tuesday, May 02, 2023, 12:20:

Tap up Anode in steps @ 20 v per 20 seconds.

Anode @ 100 V = 10.989 mA

Anode @ 200 V = 12.210 mA

Anode @ 300 V = 12.210 mA

Anode @ 400 V = 13.431 mA 

Tuesday, May 02, 2023, 12:36: Anode @ 20 V. 

Tuesday, May 02, 2023, 12:53: BIAS / EE / EZL @ 10 / -0.5 / 5 kV

Wednesday, May 03, 2023, 04:30: Auto-ramping TGHT / TBHT to 550 / 280 A @ 1 A per minute. 

Wednesday, May 03, 2023, 10:42: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

TGHT / TBHT @ 360 / 280 A. Ramping ongoing. 

Wednesday, May 03, 2023, 14:04: TGHT / TBHT @ 550 / 280 A

Wednesday, May 03, 2023, 14:10: Anode tapped up to 100 V @ 20 V per 20 seconds.

Wednesday, May 03, 2023, 14:25: Large spark*. Reset Optics.  

Wednesday, May 03, 2023, 14:46: Mass & wire scans complete. 

Wednesday, May 03, 2023, 17:05: Anode & coil checks complete. Auto-cooling of TGHT / TBHT @ 1 / 2 A per minute.

Wednesday, May 03, 2023, 22:51: IV4 closed. 

Thursday, May 04, 2023, 07:35: SV5 closed. Sources / Power off.

Thursday, May 04, 2023, 07:37: IG1 off. TP off.

Thursday, May 04, 2023, 09:17: Venting.

Tuesday, May 09, 2023, 10:28: Roughing.

Tuesday, May 09, 2023, 11:25: TP1B on. 

Tuesday, May 09, 2023, 12:38: TP1A on.

Tuesday, May 09, 2023, 12:49: IG1 on. 

Wednesday, May 10, 2023, 10:41: Waterline FS#5 opened. Vacuum @6.36e-07T

Wednesday, May 10, 2023, 10:56: IV4 open. Power / sources / optics on. 

Wednesday, May 10, 2023, 10:59: Auto-ramping TGHT / TBHT to 300 / 150 A @ 2 / 1 A per minute. 

Wednesday, May 10, 2023, 11:09: BIAS / EE / EZL @ 10 / -1.0 / 5 kV. 

Wednesday, May 10, 2023, 11:54: Vacuum climbing quickly @ 4.10e-06T. Halt ramping to stabilize. TGHT / TBHT @ 100 / 50 A.

Wednesday, May 10, 2023, 11:59: Vacuum @ 7.69e-06T & still climbing. 

Wednesday, May 10, 2023, 12:05: Levelled off @ 8.91e-06T. 

Wednesday, May 10, 2023, 13:16: Vacuum @ 2.04e-06T. Auto-ramping TGHT / TBHT to 200 / 100 A @ 2 / 1 A per minute.

Wednesday, May 10, 2023, 13:34: Abort ramping. 

Wednesday, May 10, 2023, 13:52: Vacuum @ 4.35e-06T. Restart auto-ramping TGHT / TBHT to 200 / 100 A @ 1 A per minute.

Wednesday, May 10, 2023, 15:43: Vacuum @ 1.05e-06T. Auto-ramping TGHT / TBHT to 300 / 150 A @ 1 A per minute.  

Wednesday, May 10, 2023, 16:36: Vacuum @ 8.23e-07T. TGHT  / TBHT @ 250 A / 150 A. Auto-ramping TGHT / TBHT to 450 / 250 A @ 2 / 1 A per minute.  

Wednesday, May 10, 2023, 20:52: Vacuum @ 5.01e-06T. TGHT / TBHT Slowly ramping due to vacuum limit being reached. 

Thursday, May 11, 2023, 05:42: TBHT reduced @ 230 A. Auto-ramping TGHT to 580 A @ 2 A per min 

Thursday, May 11, 2023, 05:52: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, May 11, 2023, 09:30: Mass & wire scans complete.

Friday, May 12, 2023, 07:21: Auto-cooling @ 1 A per min.

Friday, May 12, 2023, 11:54: HV to 0 kV. 

Tuesday, May 16, 2023, 11:03: IV4 closed. Power / Sources off. Locked out.

Tuesday, May 16, 2023, 11:04: IG1 & IG6 off. All turbo pumps off.

Tuesday, May 16, 2023, 12:19: Venting.

Calibrated window installed on the beam line.

Tuesday, May 16, 2023, 13:45: Roughing both the chamber & beam line.

Tuesday, May 16, 2023, 14:00: TMS:TP6 on.

Tuesday, May 16, 2023, 14:04: TMS:TP2 on.

Tuesday, May 16, 2023, 14:13: IG6 on.

Tuesday, May 16, 2023, 14:17: TSG:TP1B on.

Tuesday, May 16, 2023, 14:23: TSG:TP1A on.

Tuesday, May 16, 2023, 14:33: IG1 on.

Tuesday, May 23, 2023, 07:30: Waterline FS#5 open. Vacuum stable @ 2.78e-07T

Tuesday, May 23, 2023, 07:32: Power / Sources on.

Tuesday, May 23, 2023, 07:35: Auto-ramping TGHT / TBHT to 230 A / 230 A @ 2 A per min. IV4 open.

Tuesday, May 23, 2023, 07:38: Optics are set.

Tuesday, May 23, 2023, 11:38: Auto-ramping TGHT to 300 A @ 2 A per minute.  

Tuesday, May 23, 2023, 12:32: Auto-ramping TGHT to 350 A @ 2 A per minute. 

Tuesday, May 23, 2023, 13:13: Auto-ramping TGHT to 400 A @ 2 A per minute. 

Tuesday, May 23, 2023, 14:00: Auto-ramping TGHT to 450 A @ 2 A per minute.

Tuesday, May 23, 2023, 14:50: Auto-ramping TGHT to 500 A @ 2 A per minute.

Tuesday, May 23, 2023, 16:07: Auto-ramping TGHT to 550 A @ 2 A per minute.

Tuesday, May 23, 2023, 16:51: Auto-ramping TGHT to 580 A @ 2 A per minute.

Tuesday, May 23, 2023, 17:35: TGHT at 580A with TBHT at 230A.

Tuesday, May 23, 2023, 21:37: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Begin wire & mass scans.

Tuesday, May 23, 2023, 22:03: Mass & wire scans complete. 

Tuesday, May 23, 2023, 22:09: BIAS / EE / EZL @ 0 kV.  

Wednesday, May 24, 2023, 13:48: Auto-ramping TGHT to 550 A and TBHT to 200A @ 2 A per minute.

Currently at TGHT to 500 A and  TBHT to 150A. 15:44 pm

Wednesday, May 24, 2023, 15:44: Auto-ramping TGHT to 450 A and TBHT to 100A @ 2 A per minute.

Wednesday, May 24, 2023, 17:22: Auto-ramping TGHT to 400 A and TBHT to 50A @ 2 A per minute.

Thursday, May 25, 2023, 07:49: TGHT / TBHT @ 0A (Reached before midnight - But not logged). IV4 closed. 

Thursday, May 25, 2023, 09:04: Power / Sources off.

Thursday, May 25, 2023, 09:06: IG1 off. TP1B & TP1A off.

Tuesday, April 09, 2024, 15:25: Roughing.

Wednesday, April 10, 2024, 05:41: TP1B on. 

Wednesday, April 10, 2024, 05:47: TP1A on. 

Wednesday, April 10, 2024, 06:01: IG1 on. 

Wednesday, April 10, 2024, 12:21: Waterline FS#5 open. Vacuum stable @ 1.23e-06T.

Wednesday, April 10, 2024, 12:25: Power / sources on.

Wednesday, April 10, 2024, 12:32: TGHT / TBHT @ 5/5A tapped up & back down manually. Ok.

Wednesday, April 10, 2024, 12:33: Anode @ 25 V, Coil @ 10 A. Tapped up & down manually. Ok.

Wednesday, April 10, 2024, 12:35: BIAS / EE / EZL @ 1 / -0.5 / 1 kV. Tapped up & down manually. Ok.

Wednesday, April 10, 2024, 12:37: Vacuum @ 1.19e-06T. Ok, but will allow to drop further.

Thursday, April 11, 2024, 10:21: Gas lines open.

Thursday, April 11, 2024, 10:34: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, April 11, 2024, 10:38: BIAS / EE / EZL @ 40 / -2.0 / 17 kV.

Thursday, April 11, 2024, 10:41: Significant sparking for about 5 seconds. BIAS / EE / EZL @ 43 / -2.0 / 19 kV.

Thursday, April 11, 2024, 10:42: BIAS / EE / EZL @ 45 / -2.0 / 19 kV.

Thursday, April 11, 2024, 10:46: BIAS / EE / EZL @ 47.5 / -2.2 / 22 kV. Sparking again. On the spark gap.

Thursday, April 11, 2024, 10:56: BIAS / EE / EZL @ 50 / -2.5 / 25 kV.

Thursday, April 11, 2024, 11:26: 30 minutes @ 50 kV. 2 sparks in that time. The second spark tripped the optics & IG6. They were reset.

Thursday, April 11, 2024, 11:31: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, April 11, 2024, 11:38: HV tapped to 0 kV.

Thursday, April 11, 2024, 11:39: Vacuum @ 8.27e-07T.

Thursday, April 11, 2024, 13:03: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Vacuum @ 8.16e-07T.

Thursday, April 11, 2024, 13:26: Coil @ 80 A. Tapped up manually at 4 A per min approx.

Thursday, April 11, 2024, 13:28: Vacuum @ 1.01e-06T

Thursday, April 11, 2024, 13:57: Vacuum @ 2.96e-06T

Thursday, April 11, 2024, 14:19: Coil @ 0 A.

Thursday, April 11, 2024, 14:21: Anode @ 100 V.

Thursday, April 11, 2024, 14:22: Anode @ 200 V.

Thursday, April 11, 2024, 14:24: Anode @ 500 V.

Thursday, April 11, 2024, 14:28: Anode @ 0 V.

Thursday, April 11, 2024, 14:32: HV to 0 kV.

Friday, April 12, 2024, 06:30: Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 A per min. 

Friday, April 12, 2024, 13:23: Auto-ramping aborted. TGHT @ 556 A, Vacuum @  4.94e-06T. Allow 20 min for stabilization.

Friday, April 12, 2024, 13:44: Auto-ramping TGHT to 580 A @ 2 A per min. Vacuum @ 4.57e-06T. 

Friday, April 12, 2024, 14:15: Aborted auto-ramp. Vacuum @ 5.20e-06T. Will manually tap up. 

Friday, April 12, 2024, 14:32: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Vacuum @ 5.31e-06T. The extraction electrode is acting up. Doubling the voltage on what is input. Add 50 V on the slider, 100 V will go to the readback. 

Friday, April 12, 2024, 14:49: HV back to 0 kV. 

Friday, April 12, 2024, 15:12: EE Troubleshooting. Cage open & multiple tests to adjust the voltage.

Friday, April 12, 2024, 15:19: Auto-cooling @ -2 A per min