HS note:

Base# 45235-16

Lid# 39956-8

Thursday, October 03, 2024, 16:04: Roughing. IG6? Error?

Thursday, October 03, 2024, 16:24: BV1A open. 

Thursday, October 03, 2024, 16:32: TP1B on

Thursday, October 03, 2024, 16:43: TP1A on.

Thursday, October 03, 2024, 16:51: IG1 on. 

Thursday, October 03, 2024, 20:01: Water cooling on. No effect to vacuum. TGHT TBHT ramping at 1A/30s to 580A/230A

Friday, October 04, 2024, 09:13 : Slowly increasing BIAS/EE/EZL to 30/2.5/13 kV.

Friday, October 04, 2024, 09:30:   problem with TMSIG6 (low pressure sensor in beam line).  Forced on for interlocks temporarily.  

Friday, October 04, 2024, 11:14   mass scanned - FC6 background working.  filename = 2024-10-04--11-11 HP-Ta-24D - scan 3.txt 

Friday, October 04, 2024, 11:14 repeating mass scan.   filename = 2024-10-04--11-40 HP-Ta-24D - scan 4.txt

Friday, October 04, 2024, 11:53 increasing to bias 50kV / ezl 33kV. 

Friday, October 04, 2024, 12:34:  BIAS/EZL at 50/33 kV.  Leaving for HV conditioning.

Friday, October 04, 2024, 12:43   one spark from HV BIAS to ground caused TGHT to trip. Current was restored within 10s. 

Friday, October 04, 2024, 15:31:  decreasing BIAS/EZL to 30/13kV.  Throughout time at high voltage, there were 3 sparks. Two were within 5 minutes of each other, and the last 2 hours proceeded without incident (no sparks)

Friday, October 04, 2024, 15:47  BIAS EZL at 30/13 kV.  running final mass scan. background FC6 appears not to be working again. but then restored.  scan file name = 2024-10-04--16-30 HP-Ta-24D - scan 5.txt

Friday, October 04, 2024, 16:22 decreasing biases to 0V

Friday, October 04, 2024, 16:23  ramping TGHT TBHT to 0/0A at -1A/30s

 Monday, October 07, 2024, 07:58: IV4 closed. IG1 off. TP off.

Monday, October 07, 2024, 08:43: PS off. Waterlines purged. Venting. 

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 

https://elog.triumf.ca/TIS/Test-Stand/1003

EE Issue resolved. TS closed up.

Wednesday, April 17, 2024, 14:08: IV4 opened. Vacuum @ 5.26e-07T.

Wednesday, April 17, 2024, 14:12: TGHT / TBHT manually tapped up to 5 / 5 A.

Wednesday, April 17, 2024, 14:13: BIAS / EE / EZL @ 2.5 / -1.0 / 1.0 kV. Ok.

Wednesday, April 17, 2024, 14:15: Anode to 100 V. Ok. Coil PS is still.

Wednesday, April 17, 2024, 14:19: Rear cage reopened. Coil PS on. Coil @ 5 A. Ok. Gas on in the morning.

Wednesday, April 17, 2024, 14:21: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min. Coil back to 0 A.

Thursday, April 18, 2024, 05:57: Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 A per min. 

Thursday, April 18, 2024, 08:26: Gas lines purged & reopened full of Ar.

Thursday, April 18, 2024, 08:39: Optics set with common tune.

Thursday, April 18, 2024, 08:48: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, April 18, 2024, 08:50: Begin mass & wire scans w/o Anode & Coil

Thursday, April 18, 2024, 08:55: MB1 appears to be tripped & out of sync.

Thursday, April 18, 2024, 08:57: Switched MB1 PS off, controller off. Restart them. PS on, then controller. Reset on epics & Can Diagnostics TMS:HallMB1 (cfg)

Thursday, April 18, 2024, 08:59: MB1 ready. Continue testing / mass scan.

Thursday, April 18, 2024, 09:37: Anode to 100 V. Coil to 20 A.

Thursday, April 18, 2024, 10:15: Set optics to Dave's previous tune.

Thursday, April 18, 2024, 10:49: Primary mass & wire scans set complete.

Thursday, April 18, 2024, 11:01: Anode & Coil to 0. Scanning w/ Dave's previous tune.

Thursday, April 18, 2024, 11:52: BIAS / EE / EZL to 0 kV. Gas lines closed. IV4 closed.

Thursday, April 18, 2024, 11:53: Begin auto-cooling @ 2 A per min.

Friday, April 19, 2024, 06:56: Power off. IG1 off. TP1B & TP1A off.  

Friday, April 19, 2024, 09:03:   VV1 open -  venting 

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

Conditioning HS for UCx. LP-SIS oven / end caps installed

Monday, January 22, 2024, 13:53: Roughing.

Monday, January 22, 2024, 14:21: TP1B On.

Monday, January 22, 2024, 14:34: TP1A on.

Monday, January 22, 2024, 14:41: IG1 on. Vacuum @ 3.95e-05T & dropping.

Monday, January 22, 2024, 14:46: FS#5 open. Vacuum stable. 2.41e-05T & dropping. Power on.

Tuesday, January 23, 2024, 07:40: IV4 open.

Tuesday, January 23, 2024, 07:42: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per minute. 

Tuesday, January 23, 2024, 13:43 increasing BIAS to 30kV - dn 

Tuesday, January 23, 2024, 14:03 BIAS at 30kV

Tuesday, January 23, 2024, 14:06 beginning mass scan

Tuesday, January 23, 2024, 16:06: Data exported and saved

 Tuesday, January 23, 2024, 16:15: Decreasing BIAS to 0V

Tuesday, January 23, 2024, 16:27: BIAS at 0V

Tuesday, January 23, 2024, 16:41:   Vacuum in main chamber consistently at ~1.4e-6 T throughout. 

Wednesday, January 24, 2024, 07:39: Auto-cooling @ 2 A per min. 

Wednesday, January 24, 2024, 08:59: Auto-cooling Halted. Auto-ramp back up to 580 / 230 A @ 2 A per min. 

Wednesday, January 24, 2024, 15:30:  Target already hot  - TBHT 230A, TGHT 580A

Wednesday, January 24, 2024, 15:31: increasing BIAS to 30kV  

Wednesday, January 24, 2024, 15:41: beginning mass scan - Completed and repeated for confirmation

Wednesday, January 24, 2024, 16:55: decreasing BIAS to 0kV

Wednesday, January 24, 2024, 17:10: BIAS at 0kV

 Thursday, January 25, 2024, 10:13: increasing bias to 30kV

Thursday, January 25, 2024, 10:30: BIAS at 30kV

Thursday, January 25, 2024, 10:40 : beginning mass scan 

Thursday, January 25, 2024, 13:41 Tuned various parameters, multiple mass scans 

Thursday, January 25, 2024, 16:19:  decreasing BIAS to 0V

Thursday, January 25, 2024, 16:42  BIAS at 0V

Thursday, January 25, 2024, 16:42 Target cooling.

 Monday, January 29, 2024, 12:37 10µL Rb salt added to target. Assembly placed back into test stand. Pumping down.

 Tuesday, January 30, 2024, 09:25: Vacuum stable. 8e-7 T.  Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per minute.

Tuesday, January 30, 2024, 15:13:   increasing BIAS to 30kV 

Tuesday, January 30, 2024, 15:39  bias at 30kV, beginning mass scan 

Tuesday, January 30, 2024, 16:48 Scans complete, lowering bias.

 Wednesday, January 31, 2024, 16:02 increasing bias to 30kV

Wednesday, January 31, 2024, 16:40 scanned

Wednesday, January 31, 2024, 16:40 decreasing bias 

Wednesday, January 31, 2024, 16:48 bias at 0V. cooling target 

Thursday, February 01, 2024, 09:21:   venting 

Thursday, February 01, 2024, 11:14 :  removed target assembly. added 5 salts: Na, Li,K,Rb,Cs.   Placed target assembly back in test stand. pumping down.

Thursday, February 01, 2024, 16:51 Vacuum at 2e-6

Thursday, February 01, 2024, 16:52 heating target. TGHT and TBHT to 580 230 A overnight. .6A / min and .2A / min

Friday, February 02, 2024, 10:17 Target hot. Vacuum stable at 1e-6. increasing bias to 30kV 

Friday, February 02, 2024, 10:42 scanning 

Friday, February 02, 2024, 16:06 reducing bias 

Friday, February 02, 2024, 16:18 bias at 0V. cooling target to 0 A at 2A per minute 

PS & breaker off earlier via DN. 

Monday, February 05, 2024, 13:58: TS was vented. HS removed - AS. 

 https://elog.triumf.ca/TIS/Target+Production/146

Has not run through EVAP2.

Friday, September 20, 2024, 14:04: Roughing.

Friday, September 20, 2024, 14:39: TP1B on

Friday, September 20, 2024, 14:45: TP1A on. 

Friday, September 20, 2024, 14:54: TP1A at speed. IG1 on. 

Monday, September 23, 2024, 16:38   Water cooling on. no effect on vacuum pressure. Pressure at 6.0e-7T

Monday, September 23, 2024, 17:00  Ramping TGHT and TBHT to 580/230A at 1A/30s 

Tuesday, September 24, 2024, 08:58 TGHT at 502A. Ramping program preventing further ramp up do to 'good vacuum' restriction at 1e-6T as outgassing is pushing up the chamber pressure. Increased good vacuum parameter to 5e-6T, resuming ramp up to 580A at 1A/30s.

 Tuesday, September 24, 2024, 11:12:   TGHT TBHT at 580/230A. Increasing BIAS/EZL/EE to 30/13/2.5 kV slowly.

Tuesday, September 24, 2024, 14:16:   mass scan at high voltage completed - 2024-09-24--14-11 LP-Ta-24C - scan 1

Tuesday, September 24, 2024, 14:17     background signal recording problem persists, despite channel change conducted with controls team and Keiko - will continue to investigate switching to current integrators

Tuesday, September 24, 2024, 14:17  ramping up HV BIAS to 50kV for conditioning, alongside increased EZL voltage

Tuesday, September 24, 2024, 17:00  BIAS was stable at 50kV for 30min. no noticeable sparking.   

also noted that the mass scan data was saved incorrectly. however, there are multiple screen captures of the mass scan which clearly detail which peaks are present.

HV elements decreased to zero and target was left hot overnight for outgassing and so beam content can be re-evaluated

Wednesday, September 25, 2024, 10:24    increasing BIAS/EZL/EE to 30/13/2.5 kV slowly.

Wednesday, September 25, 2024, 13:25    two mass scans conducted:  2024-09-25--12-39 LP-Ta-24C - scan 2,   2024-09-25--13-22 LP-Ta-24C - scan 3

Wednesday, September 25, 2024, 13:26   ramping down high voltages. 

Friday, August 09, 2024, 21:07 Insulators, retainer and Re foil have been replaced, source cup machined so the ion source does not short against it. Venting TS now.

Friday, August 09, 2024, 22:17 Roughing.

Friday, August 09, 2024, 22:35: TP1B on. - AS

Friday, August 09, 2024, 22:42: TP1A on. - AS.

Friday, August 09, 2024, 22:50: Both TP at speed. 2.65e-05T Vacuum. FS#5 open.

Friday, August 09, 2024, 22:52: PS on. - AS.

AS:

Saturday, August 10, 2024, 07:02: TGHT / TBHT @ 26 / 5 A. BIAS / EE / EZL @ 1 / -0.5 / 1 kV. TGHT tapped back down to 5 A. 

Saturday, August 10, 2024, 07:05: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min.

Saturday, August 10, 2024, 07:27: Halt ramping @ 45 / 45 A. Set auto-ramping TGHT / TBHT to 500 / 230 @ 2 A per min. Optics are set.

Saturday, August 10, 2024, 09:59: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. TGHT / TBHT @ 321 / 230 & still ramping. One spark on tap up.

Saturday, August 10, 2024, 10:02: Small peaks on RPM0A & RPM0B. No signal on FC0. One spark*.

Saturday, August 10, 2024, 10:07: Spark* 

Saturday, August 10, 2024, 10:11: BIAS / EE / EZL @ 1 / -0.5 / 1 kV. TGHT / TBHT @ 344 / 230 & still ramping.

Saturday, August 10, 2024, 11:35: BIAS / EE / EZL @ 30 / -1.5 / 13 kV 

Saturday, August 10, 2024, 11:38: 1 spark* 

Saturday, August 10, 2024, 11:40: TGHT / TBHT @ 500 / 230 A. FC0 & wire scans produced signals / peaks. 

Saturday, August 10, 2024, 11:45: Starting mass scan. 

Saturday, August 10, 2024, 12:17: Mass scan taken. Wire scans on Mass 27 taken. Signals noted on mass 40 & 138 approx. Also of note. One large spark. Steerers reset. Signal on TGHT current.

https://isacwserv.triumf.ca/onlylocal/isactdata/save_restore/masscorr/2024_07_26_Ta_67_thinfoil_1st_massscan.txt

Saturday, August 10, 2024, 12:21: Begin HV Check.

Saturday, August 10, 2024, 12:24: BIAS / EE / EZL @ 35 / -1.8 / 15 kV.

Saturday, August 10, 2024, 12:28: BIAS / EE / EZL @ 40 / -2.0 / 17 kV.

Saturday, August 10, 2024, 12:44: Began sparking after 40. Brought back down 

Saturday, August 10, 2024, 12:56: HV @ 0 kV. 

Saturday, August 10, 2024, 13:05: BIAS / EE / EZL @ 30 / -1.5 / 13 kV 

Saturday, August 10, 2024, 13:07: BIAS / EE / EZL @ 35 / -1.8 / 15 kV 

Saturday, August 10, 2024, 13:10: BIAS / EE / EZL @ 40 / -2.0 / 17 kV.

Saturday, August 10, 2024, 13:24: Spark* reset optics. 

Saturday, August 10, 2024, 13:44: BIAS / EE / EZL @ 30 / -1.5 / 13 kV  

Saturday, August 10, 2024, 14:03: HV to 0 kV. 

Saturday, August 10, 2024, 14:12: Begin Auto-cooling @ 2 A per min. 

Monday, August 12, 2024, 05:43: Sources Off. IV4 Closed.

Monday, August 12, 2024, 05:45: IG1 & Chamber TP off. 

Monday, August 12, 2024, 07:46: TS Computer rebooted. IV4 reset. PS off. Venting.

Thursday, July 25, 2024, 14:25  - competing electrical checks prior to test stand installation

 Thursday, July 25, 2024, 17:07 - after target installation test stand roughed down, turbo pumps then turned on. vacuuming overnight

 Friday, July 26, 2024, 09:01  -  water cooling turned on, while monitoring vacuum level (~1.5e-6T).  No affect on vacuum.

Friday, July 26, 2024, 09:32  -  began increasing TGHT TBHT.   increased to 230A/230A at 1A/30s

Friday, July 26, 2024, 10:22 - closed cage and increased BIAS to 30kV to ensure a lack of sparks - additional risk of sparking due to the multipin wires connected to TGHT and TBHT at the target terminals.

Friday, July 26, 2024, 11:04   -  decreased BIAS to 0V.  Then opening cage to allow access to reading voltage across TG and TB at target

Friday, July 26, 2024, 11:29  -  reached 230/230 A.  TG TB measurements taken at this point.

Friday, July 26, 2024, 12:05  -  increasing TGHT at 1A/30s to 250A

Friday, July 26, 2024, 12:13  -  TGHT at 250A for measurement

Friday, July 26, 2024, 12:29  -  increasing TGHT to 300A at 1A/30s

Friday, July 26, 2024, 12:55 - TGHT at 300A for measurement

Friday, July 26, 2024, 13:08 - TGHT increasing at 1A/30s to 350A

Friday, July 26, 2024, 13:36  TGHT at 350 A for measurement 

Friday, July 26, 2024, 13:43 TGHT increasing at 1A/30s to 400A 

Friday, July 26, 2024, 14:10   TGHT at 400A for measurement

Friday, July 26, 2024, 14:17 TGHT increasing at 1A/30s

Friday, July 26, 2024, 14:43   TGHT at 450A for measurement

Friday, July 26, 2024, 14:53  TGHT increasing at 1A/30s

Friday, July 26, 2024, 15:20   TGHT at 500A for measurement

Friday, July 26, 2024, 15:28  TGHT increasing at 1A/30s  

Friday, July 26, 2024, 19:14 FBP: we couldn't get a great mass scan with the provided tune from Dave, we might be doing something wrong. Mass scan saved and plotted here. 

Friday, July 26, 2024, 19:16 FBP: Target will be cooled down today before the weekend. 

Monday, July 29, 2024, 09:50 TGHT/TBHT ramping up to 580/230 A 1A/30s 

Monday, July 29, 2024, 15:30:  ramping up, relatively frequent sparking beginning at 24kV. Ramped down.  (also noticed that internal test wires were shaking due to high voltage bias)

Monday, July 29, 2024, 15:49 HV at 20kV waiting for stabilization

Monday, July 29, 2024, 15:58  after a five minute period of stability, beginning to increase bias in 100V increments. 

Monday, July 29, 2024, 17:35   sparking is too frequent (decided at 24kV) to warrant attempting to condition HV up to 30kV. must determine the cause of this sparking. thus cooling target overnight.  will remove internal wires and reheat.

Tuesday, July 30, 2024, 08:32 after cooling, test stand was vented, wires removed, and subsequently pumped down. 

now beginning TGHT TBHT ramp to 580 230 at 1A/30s

Tuesday, July 30, 2024, 10:02  during TGHT TBHT ramp, HV was slowly increased to 35kV to assess high voltage stability. Throughout, and at 35kV, there were no sparks seen at all.

 Tuesday, July 30, 2024, 13:50   target at 580 230. increasing bias. 

Tuesday, July 30, 2024, 14:45   at ~24kV, the bias is sparking approximately every 4 minutes. 

Tuesday, July 30, 2024, 17:28  When sparks slowed, bias was increased, but ultimately the sparking behaviour persisted. The bias was then dropped down to 0 and TGHT TBHT cooled at -1A/30s to 0A for target removal tomorrow.

 22:55 Cooldown completed to remove the voltage wires from inside the vacuum box. 

Thermocouples attached on end plate

Indium salt @ 10 µl

3 wraps of Ta HS on oven. Gas line on center block. Empty oven.

Wednesday, October 18, 2023, 15:13: Roughing

Wednesday, October 18, 2023, 15:35: Waterline FS#5 on.

Wednesday, October 18, 2023, 15:42: TP1B on.

Wednesday, October 18, 2023, 15:52: TP1A on.

Wednesday, October 18, 2023, 16:00: IG1 on.

Thursday, October 19, 2023, 07:34: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Thursday, October 19, 2023, 09:15: IV4 opened.

Thursday, October 19, 2023, 09:42: HV sources on.

Thursday, October 19, 2023, 09:43: BIAS / EE / EZL @ 1 / -0.5 / 1 kV.

Thursday, October 19, 2023, 09:45: Optics are set. Standard tune.

Thursday, October 19, 2023, 10:40: HV to 0 kV. Cage open.

Thursday, October 19, 2023, 12:16: Cage closed. HV sources on. Optics set.

Thursday, October 19, 2023, 13:41: 1st set of mass scans complete. Optics set to 'Fernando's Tune',

Friday, October 20, 2023, 06:29: Mass & wire scans continue. 

Friday, October 20, 2023, 10:33: BIAS / EE / EZL @ 43 / -2.2 / 18.5 kV.

Friday, October 20, 2023, 11:00: Spark* Optics needed full reset. 

Friday, October 20, 2023, 12:48: HV to 0 kV. HV test done 

Tuesday, October 24, 2023, 09:39: PS / sources off. IV4 closed - Tripped - Reset.

Tuesday, October 24, 2023, 09:41: IG1 off. TP off.

Thursday, May 05, 2022, 14:43: Roughing. Open BV1B

Thursday, May 05, 2022, 14:46: Upper chamber cage closed. The rest remains open. Open BV1A.

Thursday, May 05, 2022, 15:20: TP1B up to speed.

Thursday, May 05, 2022, 15:25; TP1A on.

Thursday, May 05, 2022, 15:32: TP1A to speed. IG1 on.

Thursday, May 05, 2022, 15:33: Vacuum @ 4.72e-05T. FS#5 Open. No spike. ok.

Thursday, May 05, 2022, 15:34: Vacuum steady 4.09e-05T & dropping.

 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.

Tuesday, October 18, 2022, 13:25: Roughing.

Tuesday, October 18, 2022, 13:28: BV1A open

Wednesday, October 19, 2022, 12:14: TP1B on.

Wednesday, October 19, 2022, 12:18: TP1A on.

Wednesday, October 19, 2022, 12:26: IG1 on.

Wednesday, October 19, 2022, 12:34: IV4 open & Closed. Vacuum @ 4.13e-06T.

Wednesday, October 19, 2022, 12:39: FS#5 Water line opened.

Wednesday, October 19, 2022, 12:40: PS on.

Wednesday, October 19, 2022, 12:43: Optics PS on. Unlocked.

Wednesday, October 19, 2022, 12:44: Sources on. Vacuum @ 3.21e-06T.

Wednesday, October 19, 2022, 12:46: BIAS / EE / EZL @ 1 / -0.5 / 1 kV.

Wednesday, October 19, 2022, 12:47: TGHT / TBHT @ 10 / 10 A manually.

Wednesday, October 19, 2022, 12:48: IV4 Open.

Wednesday, October 19, 2022, 12:53: Optics set.

Controls updated

Monday, November 07, 2022, 12:40: Optics set

Monday, November 07, 2022, 13:00: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Monday, November 07, 2022, 13:15: Auto-ramping TGHT /  TBHT to 20 A @ 4A per minute. (Testing new auto-ramp)

Monday, November 07, 2022, 13:35: BIAS / EE / EZL @ 35 / -1.8 / 15 kV. Spark*

Monday, November 07, 2022, 13:37: BIAS / EE / EZL @ 40 / -2.0 / 17 kV

Monday, November 07, 2022, 13:41: BIAS / EE / EZL @ 45 / -2.3 / 20 kV with multiple sparks near the 44-45kV end of the tap up.

Monday, November 07, 2022, 14:09: Spark. Audible outside the cage, however vacuum was also affected.

Monday, November 07, 2022, 14:49: No further sparks. HV check ok.

Monday, November 07, 2022, 14:52: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

 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. 

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.

Graphite experiment 2: ID Gr-230601, WO#45220-6 ( https://elog.triumf.ca/TIS/Evaporator_2/598 )

Original disc form. End caps expanded, no Re foil installed. 4 heat shields wrapped around the oven.

Wednesday, August 09, 2023, 14:00: Roughing.

Wednesday, August 09, 2023, 14:10: TP6 & TP2 beamline side. On.

Wednesday, August 09, 2023, 14:15: IG6 on.

Wednesday, August 09, 2023, 14:29: TP1B on.

Wednesday, August 09, 2023, 14:38: TP1A on.

Wednesday, August 09, 2023, 14:46: No trips. IG1 on. Vacuum @ 6.08e-05T & dropping.

Wednesday, August 09, 2023, 14:48: Waterline FS#5 open. Vacuum @ 4.45e-05T & dropping.

Wednesday, August 09, 2023, 16:10: HV rack grounded.

Wednesday, August 09, 2023, 16:16: BIAS / EE / EZL @ 1 / -0.5 / 0.5 kV. ok

TGHT / TBHT tapped up to 5 / 5 A. ok

Wednesday, August 09, 2023, 16:17: TGHT / TBHT Tapped back to 0 A. IV4 open. Vacuum @ 7.03e-06T.

Thursday, August 10, 2023, 05:16: Auto-ramping TGHT / TBHT to 150 / 150 A @ 1 A per minute. 

Thursday, August 10, 2023, 05:24: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.  

Thursday, August 10, 2023, 05:26: FC0 out. MB1 set to -2508 to -2510 G. FC6 Auto range & Log10 green.

Thursday, August 10, 2023, 09:08: Pyrometer set on end cap. Slope set to 1.000. Temperature not yet displayed.

Thursday, August 10, 2023, 09:13: Auto-ramping TGHT / TBHT to 200 / 200 A @ 1 / 2 A per minute. (TBHT rate change confirmed)

Thursday, August 10, 2023, 10:17: Auto-ramping TGHT / TBHT to 230 / 230 A @ 1 / 2 A per minute.

Thursday, August 10, 2023, 10:48: Slope set to 0.99. Temperature @ 1109.8C. TGHT / TBHT @ 230 / 230 A.

Thursday, August 10, 2023, 10:58: Auto-ramping TGHT to 250 @ 1 A per minute.

Thursday, August 10, 2023, 11:20: TGHT @ 250 A. Mass scan taken to check for Na. Swept masses 30-19. Peak on 20-22. Magnet set to peak @ -2465 to -2467 G. Mass "22.225"

Thursday, August 10, 2023, 11:25: Auto-ramping TGHT to 250 @ 1 A per minute. Slope set to 0.98. Temperature @ 1215.5C.

Thursday, August 10, 2023, 12:00: Slope set to 0.97. Temperature @ 1339.7C.

Thursday, August 10, 2023, 12:12: Slope set to 1.00. Temperature @ 1340.1C.

Thursday, August 10, 2023, 12:15: Swept masses 30-19. Peak on 20-22. Magnet set to peak @ -2465 to -2467 G. Mass "22.225 - 22.235" again.

Thursday, August 10, 2023, 12:24: Auto-ramping TGHT to 350 @ 1 A per minute.

Thursday, August 10, 2023, 13:50: Slope set to 0.93 from 1. Temperature @ 1576.0 C. (Note: Was at 1466 C while at 1)

Thursday, August 10, 2023, 13:52: Auto-ramping TGHT to 400 @ 1 A per minute.

Thursday, August 10, 2023, 14:23: Steerers TSG:CBC dropped to 0V. Reset to 500 V.

Thursday, August 10, 2023, 14:52: Masscorr - Link to all:

http://isacwserv.triumf.ca/onlylocal/isactdata/save_restore/masscorr/

Link to this test:

http://isacwserv.triumf.ca/onlylocal/isactdata/save_restore/masscorr/2023-08-10-14-51%20Graphite%2045220-6

Thursday, August 10, 2023, 14:57: Auto-ramping TGHT to 450 A @ 1 A per min.

Thursday, August 10, 2023, 16:12: TGHT @ 450A.  Mass scan taken. Swept mass 45 to 4. 

http://isacwserv.triumf.ca/onlylocal/isactdata/save_restore/masscorr/2023-08-10-16-21%20Graphite%2045220-6                 - dn

Thursday, August 10, 2023, 16:43: graphitetesting.stp data dump to http://isacwserv.triumf.ca/onlylocal/isactdata/isactdata/2023-08-10-16-38-Graphite-25220-6    -dn

  Mass scan taken. swept mass from 150 to 4.  http://isacwserv.triumf.ca/onlylocal/isactdata/save_restore/masscorr/2023-08-10-16-45%20Graphite%2045220-6     -dn

Thursday, August 10, 2023, 16:58: moved magnet back to Na at -2441.4G.  - dn

Thursday, August 10, 2023, 17:08: ramping TBHT and TGHT down at 1A/min

Monday, August 14, 2023, 08:15: HV off.

Monday, August 14, 2023, 08:46: Power / Sources off.

Monday, August 14, 2023, 08:47: IG1 & turbo pumps off.

Monday, August 14, 2023, 10:12: Venting. 

Thermocouples installed on the left end plate x 2.

Monday, September 25, 2023, 16:23: Roughing.

Monday, September 25, 2023, 16:51: TP1B on.

Monday, September 25, 2023, 16:56: Waterline FS#5 open. Vacuum ok.

Monday, September 25, 2023, 16:58: Power on. TP1A on.

Tuesday, September 26, 2023, 09:44: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per minute. 

Tuesday, September 26, 2023, 16:11: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per minute. 

Tuesday, September 26, 2023, 16:12: IV4 opened. 

Tuesday, September 26, 2023, 16:45: Optics on/set. BIAS / EE / EZL @ 1 / -0.5 / 1 kV. TC @ 47 / 51 C

Tuesday, September 26, 2023, 21:00: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Spark @ 28 kV.

Tuesday, September 26, 2023, 21:41: Mass & wire scans taken. Masses from 110 to 160? Curious. 

Wednesday, September 27, 2023, 08:24: TC @ 71 / 79 C. 

Wednesday, September 27, 2023, 11:57: BIAS / EE / EZL @ 35 / -1.8 / 15 kV.

Wednesday, September 27, 2023, 12:06: BIAS / EE / EZL @ 40 / -2.0 / 17 kV. Spark right after.

Wednesday, September 27, 2023, 12:23: Recovered computer & epics controls from previous spark.

Wednesday, September 27, 2023, 12:36: BIAS / EE / EZL @ 45 / -2.3 / 19 kV. Spark @ 44.5 kV.

Wednesday, September 27, 2023, 13:17: Large spark *

Wednesday, September 27, 2023, 13:21: Closed IV4. Reset TSG:TP1B. TMS:TP6 Spinning up? Did not reset right away. Reset optics. Epics & Firefox on the TS computer are down. 

Wednesday, September 27, 2023, 13:26: BIAS / EE / EZL @ 40 / -2.0 / 17 kV. Plus 1 spark while tapping the HV down. TMS:TP6 has recovered.

Wednesday, September 27, 2023, 14:01: HV to 0 kV. TS computer is disconnected from the network but epics is still running. 

Wednesday, September 27, 2023, 14:05: TC @ 69.8 / 81 C

Thursday, September 28, 2023, 09:23: TS computer is running again. Continue HV  tests.

Thursday, September 28, 2023, 09:31: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, September 28, 2023, 09:47: BIAS / EE / EZL @ 40 / -2.0 / 17 kV.

Thursday, September 28, 2023, 10:43: No sparks thus far.

Thursday, September 28, 2023, 10:46: BIAS / EE / EZL @ 45 / -2.3 / 19 kV.

Thursday, September 28, 2023, 10:50: Gauge for FEBIAD gases is "buzzing".

Thursday, September 28, 2023, 10:52: BIAS / EE / EZL @ 47.5 / -2.5 / 20 kV.

Thursday, September 28, 2023, 11:35: No sparks occurred. BIAS / EE / EZL @ 0 kV.

Thursday, September 28, 2023, 11:41: PS off. IV4 closed. 

Thursday, September 28, 2023, 11:42: IG1 off. Turbo pumps off.

Thursday, September 28, 2023, 12:35: Venting.

Tuesday, October 10, 2023, 15:18: Roughing.

Tuesday, October 10, 2023, 15:46: TP1B on.

Tuesday, October 10, 2023, 15:52: TP1B at speed. CG1A @ 0.113T & dropping.

Tuesday, October 10, 2023, 15:53: TP1A on.

Tuesday, October 10, 2023, 16:01: TP1A tripped. Reset.

Tuesday, October 10, 2023, 16:03: TP1A on. IG1 on.

Wednesday, October 11, 2023, 09:14: FS#5 open. Vacuum @ 5.19e-07T.

Wednesday, October 11, 2023, 09:20: PS / Sources on.

Wednesday, October 11, 2023, 09:22: Auto-ramping TGHT / TBHT to 230 / 230 A @ 2 A per min.

Wednesday, October 11, 2023, 14:10: HV off.

Wednesday, October 11, 2023, 14:26: Grounded HV rack. HV on.

Wednesday, October 11, 2023, 14:27: BIAS / EE / EZL @ 1 / -0.5 / 1 kV.

Wednesday, October 11, 2023, 22:59: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. 

Wednesday, October 11, 2023, 23:24: 1st round of mass & wire scans complete.

Thursday, October 12, 2023, 09:37: HV off.

Wednesday, October 18, 2023, 08:12: IV4 closed. Sources off.

Wednesday, October 18, 2023, 08:14 : Power off. IG1 off. TP off.

Thursday, August 15, 2024, 08:15: Formerly Ta#67 until the thin foil target, - AS

 Monday, October 30, 2023, 16:00  Roughing

Tuesday, October 31, 2023, 08:58 Turbos on the afternoon before, TP1A timed out which delayed for another 30min turning on both TP. Now 3e-6 Torr in IG1. - FBP

Tuesday, October 31, 2023, 09:38: FS#5 open. Vacuum Stable @ 2.96e-06T

Tuesday, October 31, 2023, 09:40: PS / sources on.

Tuesday, October 31, 2023, 10:32 Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Tuesday, October 31, 2023, 12:07 HV cage closed. TSG:BIAS and TSH:EE PS are on. Waiting for TGHT ramp up to finish.

Tuesday, October 31, 2023, 14:21: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Tuesday, October 31, 2023, 14:39 IG1 5e-6Torr , TGHT ramp up on hold.

Tuesday, October 31, 2023, 14:40 Starting HV tests.

Tuesday, October 31, 2023, 15:10 HV tests went up to 53kV until gauge on Faraday cage started sparking. TP6 seems to have tripped after a few sparks from that gauge. The TC wire seems to be placed to conservatively.

Wednesday, November 01, 2023, 08:06: TP6 Was tripped. IV4 closed. TP6 Restarted. - AS

Wednesday, November 01, 2023, 08:10: Tp6 on. IV4 open.

Wednesday, November 01, 2023, 09:32: HV to 0 kV.

Wednesday, November 01, 2023, 09:33:  Auto-cooling @ 2 A per min.

Monday, November 06, 2023, 09:07: IV4 closed. PS off. IG1 & turbos off.

Monday, November 27, 2023, 16:09  Roughing

Monday, November 27, 2023, 17:22 Both turbos are on, leaving vacuum over night.

Tuesday, November 28, 2023, 09:28  after pumping over night IG1 is at .15e-6 T. Water cooling on.

Tuesday, November 28, 2023, 14:34  HV test started. Sparks on the TC seen at BIAS/EE/EZL 31/-1.8/15kV. TC values recovered after sparks, TP6 tripped during sparks as well. Venting chamber to reposition TC.

Tuesday, November 28, 2023, 17:37 I couldn't manage to close properly the side door of the chamber... waiting for help tomorrow.

Wednesday, November 29, 2023, 10:51 Roughing started earlier in the morning. IG1 at 1e-5 T. Ramping up bias.

Wednesday, November 29, 2023, 11:41 HV tests lead to 45kV sparks on the TC. Nothing seen on the RPi.

Wednesday, November 29, 2023, 13:22 The ballast of TMSRP2 was opened to attempt to improve the roughing in the beam line section. Things appear to be somehow better now, TMSTP6 and TMSTP2 are on now.

Wednesday, November 29, 2023, 16:00 IG1 is at 3.58e-6. HV tests starting again.

Wednesday, November 29, 2023, 23:36 HV tests ended earlier in the afternoon. No spark up to 55kV when gauge in the HV cage started sparking as usual.

Wednesday, November 29, 2023, 23:38 TGHT and TBHT ramp up in preparation of mass scans in the morning. 1A/30s up to TGHT:400A, TBHT:160A

Thursday, November 30, 2023, 09:05  TGHT and TBHT ramp up in preparation of mass scans in the morning. 1A/30s up to TGHT:580A, TBHT:230A

Thursday, November 30, 2023, 12:12 Mass scans started earlier in the morning. 1st scan completed at 0.1A/s, repeating it again now with 0.05A/s.

Thursday, November 30, 2023, 15:04 HV tests again up to 55kV. 2 sparks inside the vacuum, to be checked if they affected TC measurement with the pi. Gauge still sparks in the upper HV cage.

Friday, December 01, 2023, 12:05.  Error saving mass scan data Thursday. Repeating mass scans at 0.02,0.01,0.005 scan speeds. note* must delete old data prior to saving. -> save procedure: Delete Old Data, Right click plot, save as plot.txt, click Clean, Show/Save Data, enter file name and save. Filenames: 2023-12-01-* 

Friday, December 01, 2023, 15:22.  Spent some time selectively tuning various elements of the beam. Report in local folder, file "2023-12-01 beam tuning".

Friday, December 01, 2023, 15:23. Recording mass scan with inactive quadrupole elements. File name 2023-12-01_Q-off.txt

Sunday, December 03, 2023, 22:02 : Vacuum looks good.  4e-7 T.   Heating up target for Monday morning. 1A/30s up to TGHT:580A, TBHT:230A

Monday, December 04, 2023, 12:21: This morning, increased BIAS to 30kV. Ran mass scan with adjusted beam tune up to FC0. This mass scan was repeated with inactive quadrupole elements up to FC0 to compare with Friday.  2023-12-02_RBsalt_SIS_test1.txt and 2023-12-02_RBsalt_SIS_test2.txt

Tuesday, December 05, 2023, 14:12 HV tests restarted, TC wire brought closer to the ground wall. IG1 at 2.3e-6 T. Ramping up HV.

Wednesday, December 06, 2023, 13:48 Both yesterday and today the TC wire was not close enough to spark even at 60kV. Venting the chamber one more time to bring the TC closer. 

Thursday, December 07, 2023, 10:18 Vacuum at 5e-7T we see sparks at about 47kV. Lost control of epics during sparks, PS shut off manually. Everything recovered after.

Thursday, December 07, 2023, 13:32 After spark tests at ~55kV, Pi seems not to be affected by the sparks. Tests without the power surge components yielded similar results. We discovered that the sparks on the TC are partially diverted by spark gaps and probably other elements in the top HV cage.

 Monday, December 11, 2023, 10:35 Turbopumps winding down.