Monday, March 02, 2020, 14:36: Roughing.

Monday, March 02, 2020, 15:08: Turbo pumps on.

Remove HV cage (top). Reroute FS#3 back to cool EE

Tuesday, March 03, 2020, 08:11: Waterlines open. Vacuum ok @ 6.52e-07T.

HV cage top on. Data Logger removed. Wiring grounded.

Tuesday, March 03, 2020, 09:00: Power / sources / HV on.

Tuesday, March 03, 2020, 09:03: Auto-ramping TGHT / TBHT to 300 / 150 A @ 4 A per min.

Tuesday, March 03, 2020, 09:08: BIAS / EE / EZL on.

Tuesday, March 03, 2020, 09:11: BIAS / EE / EZL @ 10 / 7.5 / -1 kV.

Tuesday, March 03, 2020, 09:15: BIAS / EE / EZL @ 20 / 12.5 / -1.5 kV. Read back on PS same / ok.

Tuesday, March 03, 2020, 09:17: BIAS / EE / EZL @ 30 / 12.5 / -1.5 kV.

Tuesday, March 03, 2020, 09:18: IV4 Opened.

Tuesday, March 03, 2020, 09:24: Optics on / set.

One spark noted. Reset optics.

Tuesday, March 03, 2020, 11:32: Auto-ramping TGHT / TBHT to 500 / 200 A @ 4 A per min.

One spark noted. Reset optics.

Tuesday, March 03, 2020, 12:47: Auto-ramping TGHT / TBHT to 580 / 230 A @ 4 A per min.

FM

Tuesday, March 03, 2020, 18:30: BIAS/EE/EZL @ 0 kV.

Tuesday, March 03, 2020, 18:31: TGHT / TBHT to 400 / 200 A @ 4 A per min.

Nothing observed on the emittance scan regardless of the tune

Wednesday, March 04, 2020, 09:09:  Auto-ramping TGHT / TBHT to 500 / 210 A @ 4 A per min. 

Wednesday, March 04, 2020, 10:47:  Auto-ramping TGHT / TBHT to 580/ 230 A @ 4 A per min. 

*Got busy in the morning, starting later than expected

Wednesday, March 04, 2020, 13:47: BIAS / EE / EZL @ 30 / 12.5 / -1.5 kV.

*Seminar at 2:30 I'll continue later

Wednesday, March 04, 2020, 16:08: Emittance rig troubleshoot (see e-log 778)

Wednesday, March 04, 2020, 19:00: BIAS/EE/EZL @ 0 kV.

Wednesday, March 04, 2020, 19:09: TBHT to 200A to try preserver some salts for tomorrow tests

Friday, March 06, 2020, 17:50: Auto-cooling 4 A/min .

Monday, March 09, 2020, 12:08: IV4 closed

Monday, March 09, 2020, 12:08: IG1 Off.

Monday, March 09, 2020, 12:09: Turbos off

Monday, March 09, 2020, 16:19: Venting

Thermocouples installed on EE. Double checked continuity & used a heat gun.

Wednesday, March 11, 2020, 13:30: Roughing.

Wednesday, March 11, 2020, 15:03: Turbo pumps on, interlocks by-passed (No water at the moment) 

Wednesday, March 11, 2020, 15:10: IG1 on.

Thursday, March 12, 2020, 06:08: Vacuum @ 2.33e-06T. Opening waterlines.

 Thursday, March 12, 2020, 06:11: Waterlines all open. Vacuum Stable @ 2.31e-06T

Thursday, March 12, 2020, 06:13: Bypass on TP1A & B removed.

Thursday, March 12, 2020, 06:18: Power / Sources on TGHT / TBHT @ 0 / 0 A.

Thursday, March 12, 2020, 06:20: Auto-ramping TGHT / TBHT to 250 / 150 A @ 4 A per min.

Thursday, March 12, 2020, 07:34: Auto-ramping TGHT / TBHT to 350 / 200 A @ 4 A per min.

Thursday, March 12, 2020, 08:02: Auto-ramping TGHT / TBHT to 450 / 230 A @ 4 A per min.

Thursday, March 12, 2020, 08:30: Auto-ramping TGHT / TBHT to 580 / 230 A @ 4 A per min.

Thursday, March 12, 2020, 08:55: Ramping aborted. TGHT / TBHT @ 488 / 230 A. Vacuum limit reached at 3.30e-06T.

Thursday, March 12, 2020, 08:56: Vacuum limit increased to 5.0e-06T. Auto-ramping TGHT / TBHT to 580 / 230 A @ 4 A per min.

Thursday, March 12, 2020, 09:27: TGHT / TBHT @ 580 / 230 A. Temperatures recorded.

W/ Water cooling on EE

Thursday, March 12, 2020, 09:31: Auto-cooling @ 6A per min.

Thursday, March 12, 2020, 11:09: PS off. Lock up. Remove HV cage for FS#3 EE route & water purge.

Thursday, March 12, 2020, 11:27: PS on. Locks off. FS#3 re-routed (K line - EE isolated). Water on. Vacuum ok @ 2.07e-06T

W/O Water cooling on EE

Thursday, March 12, 2020, 11:28: Power / Sources on TGHT / TBHT @ 0 / 0 A.

Thursday, March 12, 2020, 11:29: Auto-ramping TGHT / TBHT to 250 / 150 A @ 4 A per min.

Thursday, March 12, 2020, 12:33: Auto-ramping TGHT / TBHT to 350 / 200 A @ 4 A per min.

Thursday, March 12, 2020, 13:02: Auto-ramping TGHT / TBHT to 450 / 230 A @ 4 A per min.

Thursday, March 12, 2020, 13:28: Auto-ramping TGHT / TBHT to 580 / 230 A @ 4 A per min.

Thursday, March 12, 2020, 14:11: TGHT / TBHT @ 580 / 230 A. Temperatures recorded.

Thursday, March 12, 2020, 14:41: Auto-cooling @ 4A per min.

Tuesday, March 17, 2020, 05:26: IG1 & turbo pumps off. Water lines closed for FS#3 & HS.

Tuesday, March 17, 2020, 05:31: Waterlines FS#5 & FS#3 purged.

Tuesday, March 17, 2020, 07:08: Venting.

Salts: 

Li - 10 uL

Na - 10 uL

K - 5 uL

Rb - 10 uL

Cs - 15 uL

Wednesday, June 10, 2020, 08:55: Roughing.

Wednesday, June 10, 2020, 09:30: Turbo pumps on.

Wednesday, June 10, 2020, 09:35: Ion gauge on.

Wednesday, June 10, 2020, 13:52: HS waterline opened. Vacuum ok @ 4.11e-06T.

Wednesday, June 10, 2020, 13:59: All main PS on. E-rig PS on. Optics on.

Wednesday, June 10, 2020, 14:02: Sources on.

Thursday, June 11, 2020, 07:15: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. 

Thursday, June 11, 2020, 07:29: IV4 opened. BIAS / EZL / EE @ 30 / 13 / -1.5 kV. 

Thursday, June 11, 2020, 09:56: BIAS reduced to 20 kV due to sparking / out gassing. MB1 having issues? 

Thursday, June 11, 2020, 14:24: Halted auto ramp due to the vacuum. TGHT @ 500 A. Vacuum @ 7.08e-06T.

Thursday, June 11, 2020, 14:26: TBHT reduced to 200 A. 

Thursday, June 11, 2020, 19:09: Auto-cooling @ 1 A per min. 

Friday, June 12, 2020, 10:43: Auto-ramping TGHT / TBHT to 300 / 150 A @ 2 A per min.  

Monday, June 15, 2020, 03:00: Vacuum @ 2.66e-06T. TGHT / TBHT @ 300 / 150 A. Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. 

Monday, June 15, 2020, 05:30: Tap up BIAS. BIAS / EZL / EE @ 30 / 13 / -1.5 kV.  TGHT @ 512 A. Vacuum @ 6.11e-06T.

Monday, June 15, 2020, 06:46:

Mass scans complete w/ TGHT / TBHT @ 512 / 230 A. 30 kV.

Mass, wire, & emittance scans taken on: M7, M23, M38, M86, M125.

Monday, June 15, 2020, 09:52: Auto-cooling @ 1 A per min.

Monday, June 15, 2020, 21:23: BIAS / EE / EZL @ 0 kV. 

Tuesday, June 16, 2020, 06:57: IV4 closed & reset.

Tuesday, June 16, 2020, 07:00: Sources / Power off. IG1 off. Turbo pumps off.

Tuesday, June 16, 2020, 08:06: Waterlines purged. N bottle @ 1450 PSI. Venting.

Tuesday, June 16, 2020, 11:01: Turbo pumps on.

Wednesday, June 17, 2020, 07:49: HS waterlines opened. Vacuum stable @ 2.07e-06T.

Wednesday, June 17, 2020, 07:51: Power / Sources on.

Wednesday, June 17, 2020, 07:52: Opened IV4.

Wednesday, June 17, 2020, 07:55: Auto-ramping TGHT / TBHT to 300 / 100 A @ 4 A per min. Optics on.

Wednesday, June 17, 2020, 08:03: BIAS / EE / EZL @ 30 /  -1.5 / 13 kV.

Wednesday, June 17, 2020, 09:43: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

12:50 Approx TRIP*. Vacuum spike?

Wednesday, June 17, 2020, 13:10: Sources back on. Auto-ramping TGHT / TBHT to 450 / 150 A @ 4 A per min. Optics switched back on.

Wednesday, June 17, 2020, 13:42: BIAS / EE / EZL @ 30 /  -1.5 / 13 kV.

Wednesday, June 17, 2020, 15:25: Auto-ramping TGHT / TBHT to 500 / 230 A @ 4 A per min.

Wednesday, June 17, 2020, 15:48: Auto-ramping TGHT / TBHT to 525 / 230 A @ 4 A per min.

Wednesday, June 17, 2020, 16:14: Auto-ramping TGHT / TBHT to 580 / 230 A @ 4 A per min.

Wednesday, June 17, 2020, 17:03: Scans complete

Wednesday, June 17, 2020, 17:09: TGHT brought down to 550 A. BIAS /  EE / EZL @ 0 kV.

Wednesday, June 17, 2020, 17:10: IV4 closed

Wednesday, June 17, 2020, 17:13: TBHT to 200 A.

Wednesday, June 17, 2020, 22:25: TSG:CG1A & TSG:CG1B leveling off. Reducing ~ On the strip tool. 

Thursday, June 18, 2020, 05:32: From 550 A / 200 A. Vacuum @ 5.63e-06T. Auto-ramping TGHT / TBHT to 580 / 230 A @ 1 A per min. Max loop reached (5.500e-06T). Allow to out gas.

Sunday, June 21, 2020, 11:07: Auto-cooling @ 0.5 A per min. vacuum @ 4.29e-06T. 

Monday, June 22, 2020, 04:51: Auto-cooling @ 4 A per min. vacuum @ 1.49e-06T. 

Monday, June 22, 2020, 05:10: Sources / power off.

Monday, June 22, 2020, 05:13: Ion gauge & Turbo pumps off.

Monday, June 22, 2020, 06:46: Venting. HS waterline purged.

 Tuesday, August 04, 2020, 15:04: Roughing.

Wednesday, August 05, 2020, 06:08: Turbo pumps on. 

Thursday, August 06, 2020, 06:58: Vacuum @ 1.52e-06T

Thursday, August 06, 2020, 07:01: Waterlines opened. Vacuum ok @ 1.52e-06T

Thursday, August 06, 2020, 07:03: Power / Sources on.

Thursday, August 06, 2020, 07:05: Auto-ramping TGHT / TBHT to 300 / 150 A @ 4A per min.

Thursday, August 06, 2020, 07:13: Adjust TBHT Voltage limit back to 3.001 V.

Thursday, August 06, 2020, 07:52: IV4 opened. HV PS on.

Thursday, August 06, 2020, 07:53: Optics up to FC0 on.

Thursday, August 06, 2020, 08:03: BIAS /  EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, August 06, 2020, 08:27: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2A per min.

Thursday, August 06, 2020, 11:17: BIAS /  EE / EZL @ 40 / -2.0 / 17 kV.

(monitor) Next set below

Thursday, August 06, 2020, 12:00: BIAS / EE / EZL @ 45 / 2.25 / 20.

Thursday, August 06, 2020, 12:17: BIAS / EE / EZL @ 50 / 2.5 / 22. Sparks on EE (K) cap sprak gap?

Thursday, August 06, 2020, 12:31: While tapping up the HV , (52 kV approx) , the system tripped due to a large spark around 12:25 pm. Reset req'd

Thursday, August 06, 2020, 12:33: Auto-ramping TGHT / TBHT to 580 / 230 A @ 6A per min.

Thursday, August 06, 2020, 12:43: BIAS /  EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, August 06, 2020, 13:24: Halt auto ramp. Odd behaviour on TBHT CUR/VOL & TGHT VOL.

Thursday, August 06, 2020, 13:27: Warped. Visual short on TBHT. Auto-cool @ 4 A per min.

Thursday, August 06, 2020, 13:32: HV off. IV4 closed.

Tuesday, August 11, 2020, 07:02: Power/sources off.

Tuesday, August 11, 2020, 07:06: Ion gauge IG1, Turbo pumps off.

HS target leg openings were milled. Short from previous test by the look of it. TBHT insulator on source side is cracked.

Wiring up top adjusted for better clearance. EE (K) Cap appears ok.

Tuesday, August 11, 2020, 12:03: Roughing.

Tuesday, August 11, 2020, 12:43: Turbo pumps on.

Tuesday, August 11, 2020, 12:50: Ion gauge on.

Wednesday, August 12, 2020, 06:47: Waterlines opened. Vacuum stable @ 1.76e-06T.

Wednesday, August 12, 2020, 06:51: Power / Sources / Optics on (Half to FC0).

Wednesday, August 12, 2020, 06:53: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min.

Wednesday, August 12, 2020, 06:54: IV4 opened.

Wednesday, August 12, 2020, 11:36: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Wednesday, August 12, 2020, 14:10: TGHT / TBHT voltages ok.

Wednesday, August 12, 2020, 14:23: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Wednesday, August 12, 2020, 15:00: BIAS / EE / EZL @ 35 / -1.7 / 15 kV. 

Wednesday, August 12, 2020, 15:06: BIAS /  EE / EZL @ 40 / -2.0 / 17 kV. Spark* audible.

reset steering & IG6.

Wednesday, August 12, 2020, 15:08: Spark*

Wednesday, August 12, 2020, 15:17: BIAS / EE / EZL @ 45 / 2.25 / 20. spark*

Sparks* Reset IV4, TP6, steering & IG6.

Wednesday, August 12, 2020, 15:20: BIAS /  EE / EZL @ 40 / -2.0 / 17 kV.

Wednesday, August 12, 2020, 15:24: Optics Q1 not resetting.

Wednesday, August 12, 2020, 15:29: HV to 0 kv

Thursday, August 13, 2020, 07:32: TPS:Q1 has not revived on the V+ setting. Comes back on V-. Multiple attempts to engage the PS, turning it off & on. Leaving it in "ON" status but 0V.

Thursday, August 13, 2020, 07:45: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, August 13, 2020, 08:27: Sparks* 3 audible, almost back to back. only TPS:Q1 affected. V- jumped from 0V to 1500V on it's own. Reset to 0V.

Thursday, August 13, 2020, 08:54: BIAS / EE / EZL @ 35 / -1.7 / 16 kV. Increased EZL V to stabilize it on the strip tool.

Thursday, August 13, 2020, 10:56: Reset IG6. Spark affected.

Thursday, August 13, 2020, 11:05: Audible spark* in behind TS?

Thursday, August 13, 2020, 11:06: TPS:Q1 affected. V- jumped from 0V to 1500V on it's own. Reset to 0V.

Thursday, August 13, 2020, 11:12: BIAS /  EE / EZL @ 40 / -2.0 / 20 kV.

Thursday, August 13, 2020, 11:21: Spark* Charged up both TSG:CBC to 2500 V. Reset to 500 V.

Thursday, August 13, 2020, 13:50: BIAS / EE / EZL @ 45 / -2.2 / 21 kV.

Thursday, August 13, 2020, 14:11: Spark* Minor.

Thursday, August 13, 2020, 14:15: BIAS / EE / EZL @ 50 / -2.5 / 22.5 kV.

Thursday, August 13, 2020, 14:18: Spark. Knocked out IV4, TP6, & optics. Reset. Oh and would you look at that TPS:Q1 works now. Set to 790 V.

Thursday, August 13, 2020, 14:21: Spark*

Thursday, August 13, 2020, 14:24: Spark* but not audible. They're decreasing in size.

Thursday, August 13, 2020, 14:31: Audible spark*. Reset TSG:CBC & TPS:Q1

Thursday, August 13, 2020, 15:01: Observed the spark in the spark gap EE (K).

Thursday, August 13, 2020, 15:19: BIAS / EE / EZL to 0 kV. HV off. Optics off.

Monday, August 17, 2020, 10:57: Begin slow auto-cooling @ -0.75 A per min. 

Installed Indium gasket on FS#2 - (C) water block / R- TGHT.

Tuesday, September 29, 2020, 11:23: Pressurize to 120 PSI at atmosphere.

LD: 0.0E-07 atm-CC/sec

Tuesday, September 29, 2020, 11:30: LD: 0.0E-07 atm-CC/sec checked & held on gasket / water block (C) for min minutes. No LD response.

Tuesday, September 29, 2020, 11:56: Roughing.

Tuesday, September 29, 2020, 12:28: TP1B on.

Tuesday, September 29, 2020, 13:10: TP1A on. IG1 on.

Tuesday, September 29, 2020, 16:10: Vacuum @ 8.66e-06T.

Tuesday, September 29, 2020, 16:13: FS#2 opened. Vacuum @ 8.48e-06T.

Tuesday, September 29, 2020, 16:23: Opened FS#5. Vacuum ok

Tuesday, September 29, 2020, 16:25: Opened FS#4. Vacuum ok

Tuesday, September 29, 2020, 16:27: Opened FS#3 Vacuum ok @ 8.13e-06T.

Wednesday, September 30, 2020, 06:14: Power / sources on.

Wednesday, September 30, 2020, 06:17: Auto-ramping TGHT / TBHT to 300 / 150 A @ 3 A per min.

Wednesday, September 30, 2020, 06:22: Optics set (minus MB1).

Wednesday, September 30, 2020, 07:11: Pair of gradual vacuum spikes noticed. Up to 3.5e-06T & 2.6e-06T, then back down to 2.3e-06T.

Wednesday, September 30, 2020, 07:59: Auto-ramping TGHT / TBHT to 450 / 200 A @ 3 A per min.

Wednesday, September 30, 2020, 08:04: Abort auto-ramping. BIAS @ 10 kV. EZL Appears to have a short. EE up to -1.5 kV ok.

Wednesday, September 30, 2020, 08:11: BIAS back to 0 kV. Auto cooling @ 4A per min.

Wednesday, September 30, 2020, 09:21: Tap down TGHT to 0 from 40 A.

Wednesday, September 30, 2020, 09:22: Power/sources off.

Wednesday, September 30, 2020, 09:23: IG1 & Turbo pumps off.

Wednesday, September 30, 2020, 10:48: Venting.

Wednesday, September 30, 2020, 11:31: Wire found touching on EZL to chamber. Bypassed interlocks. EZL on. 200 V ok 500 V ok. Back to 0V.

Wednesday, September 30, 2020, 11:33: Bypasses removed.

Wednesday, September 30, 2020, 11:37: Roughing.

Wednesday, September 30, 2020, 12:22: Turbo pumps on. 

Wednesday, September 30, 2020, 16:41: TGHT / TBHT to 10 / 10 A manually. BIAS / EE / EZL @ 1 / 0.1 / 1 kV. No shorts. Vacuum @ 2.60e-06T.  

Wednesday, September 30, 2020, 16:47: HV & Heaters tapped back to 0 A & 0 kV. 

Thursday, October 01, 2020, 05:27: Auto-ramping TGHT / TBHT to 150 / 75 A @ 3 A per min.

Thursday, October 01, 2020, 07:04: Auto-ramping TGHT / TBHT to 300 / 150 A @ 3 A per min. 

Thursday, October 01, 2020, 07:29: Optics on. (MB1 Still interlocked but connected now)

Thursday, October 01, 2020, 07:38: BIAS / EE / EZL @ 30 / -1.5 / 13 kV

Thursday, October 01, 2020, 07:39: IV4 open.

Thursday, October 01, 2020, 07:55: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Thursday, October 01, 2020, 08:34: Voltage drops on BIAS. Auto ramping halted.

Thursday, October 01, 2020, 08:37: BIAS / EE / EZL @ 15 / -1.0 / 8.5 kV.

Thursday, October 01, 2020, 10:04: Auto-ramping TGHT / TBHT to 450 / 230 A @ 1 A per min.

Thursday, October 01, 2020, 11:13: Auto-ramping TGHT / TBHT to 580 / 230 A @ 1 A per min.

Thursday, October 01, 2020, 14:31: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. BIAS instability ongoing. although less than before. Initial RPM0A & RPM0B wire scans ok. MB1 Still interlocked.

Thursday, October 01, 2020, 14:42: BIAS current limit increased to 0.150 mA

Thursday, October 01, 2020, 16:24: BIAS / EE / EZL @ 20 / -1.5 / 6.5 kV.

Friday, October 02, 2020, 09:55: BIAS / EE / EZL @ 25 / -1.5 / 10 kV.

Friday, October 02, 2020, 10:43: Spark* Tripped Optics, IV4 & TP1A. Optics reset. Trouble on IV4 & TP1A

Friday, October 02, 2020, 10:58: IV4 reset. TP1A not back yet. 

Friday, October 02, 2020, 11:22: TP1A reset and on. 

Friday, October 02, 2020, 12:19: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Friday, October 02, 2020, 13:58: HV to 0 kV 

Friday, October 02, 2020, 14:00: Auto-Cooling @ 1 A per min.

Tuesday, October 13, 2020, 08:07: Power / sources off. HS Waterlines purged.

Tuesday, October 13, 2020, 08:09: IG1 off. Turbo pumps off.

Tuesday, October 13, 2020, 10:31: Venting. 

Friday, October 16, 2020, 11:11: Roughing.

Friday, October 16, 2020, 11:39: TP1B on.

Friday, October 16, 2020, 12:29: TP1A on. 

Monday, October 19, 2020, 07:59: Waterlines opened. Vacuum ok @ 6.20e-07T

Monday, October 19, 2020, 08:01: Power / Sources on.

Monday, October 19, 2020, 08:02: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min.

Monday, October 19, 2020, 08:03: IV4 opened.

Monday, October 19, 2020, 08:09: Optics on / set.

Monday, October 19, 2020, 08:16: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Monday, October 19, 2020, 12:47: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. 

Monday, October 19, 2020, 15:50: Initial wire scans were good. MB1 requires a polarity reversal

Monday, October 19, 2020, 16:00: Auto-cooling TGHT / TBHT to 300 / 10 A @ 1 A per min. Stop manually.

Monday, October 19, 2020, 18:11: TBHT @ 100 A halt. Auto-cooling TGHT to 300 @ 1 A per min. Stop manually.

Monday, October 19, 2020, 19:16: TGHT @ 300 A halt.

Tuesday, October 20, 2020, 06:15: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. 

Tuesday, October 20, 2020, 09:30: HV off. IV4 closed. Switching MB1 polarity.

Tuesday, October 20, 2020, 13:30: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. MB1 on

Tuesday, October 20, 2020, 14:10: Mass scans working

Tuesday, October 20, 2020, 14:17:

 Tuesday, October 20, 2020, 15:15: IV4 opened. 

Thursday, October 22, 2020, 11:35: HV to 0 kV.

Thursday, October 22, 2020, 11:36: Auto-cooling @ 1 A per min. 

Monday, October 26, 2020, 11:40: IV4 closed / reset

Monday, October 26, 2020, 11:41: PS off.

Monday, October 26, 2020, 11:42: IG1 / Turbo pumps off. Purging waterlines.

Monday, October 26, 2020, 13:00: Venting.

Tuesday, October 27, 2020, 08:40: Roughing.

Tuesday, October 27, 2020, 09:13: TP1B on.

Tuesday, October 27, 2020, 10:13: TP1A on.

Tuesday, October 27, 2020, 12:59: Vacuum @ 4.55e-06T

Tuesday, October 27, 2020, 13:01: Waterlines opened. Vacuum @ 4.26e-06T.

Tuesday, October 27, 2020, 13:03: Power / sources on.

Tuesday, October 27, 2020, 13:05: Optics on. IV4 open. TGHT / TBHT check ok.

Wednesday, October 28, 2020, 04:30: Auto-ramping TGHT / TBHT  to 350 / 150 A @ 2 A per min. 

Wednesday, October 28, 2020, 06:30:

Wednesday, October 28, 2020, 06:42: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Wednesday, October 28, 2020, 07:33: Auto-ramping TGHT / TBHT  to 580 / 230 A @ 2 A per min.

Wednesday, October 28, 2020, 13:03:

Thursday, October 29, 2020, 15:19: HV to 0 kV. Begin auto-cooling @ 1 A per min.

Large Vacuum spike noted 5:30 approx. Tripped TS.

Monday, November 02, 2020, 08:32: Vacuum @ 2.65e-06T. PS/optics off (Sources already tripped)

Monday, November 02, 2020, 08:33: IV4 closed.

https://elog.triumf.ca/TIS/Test-Stand/818 - Leak Checks (FS#4 confirmed)

Monday, November 02, 2020, 09:27: IG1 off. Turbo pumps off.

Monday, November 02, 2020, 10:38: Venting.

Attached end plate parasitic / symbiotic target & PEEK assembly bracket.

Friday, November 06, 2020, 12:24: Roughing.

Friday, November 06, 2020, 12:53: TP1B on.

Friday, November 06, 2020, 13:05: TP1A on. 

Friday, November 06, 2020, 13:16: IG1 on.

Monday, November 09, 2020, 06:26: Vacuum @ 1.25e-06T.

Monday, November 09, 2020, 06:28: HS waterline opened. Vacuum ok @ 1.25e-06T.

Monday, November 09, 2020, 06:36: Power/sources on.

Monday, November 09, 2020, 06:39: Auto-ramping TGHT / TBHT to 350 / 150 A @ 4 A per min.

Monday, November 09, 2020, 06:4: Optics on.

Monday, November 09, 2020, 08:10: IV4 open.

Monday, November 09, 2020, 08:15: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Monday, November 09, 2020, 08:19: Wire & Mass scans @ 350 / 150 A. Ok.

Monday, November 09, 2020, 08:27: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Monday, November 09, 2020, 11:40: Mass & wire scans complete.

Monday, November 09, 2020, 13:46: E-rig PS off.

Tuesday, November 10, 2020, 04:47: Auto-cooling @ 2A per min. 

Tuesday, November 10, 2020, 06:21: HV @ 0 V. 

Tuesday, November 10, 2020, 06:58: TBHT @ 0 A. TGHT @ 317 A. Auto-cooling @ 3A per min. 

Tuesday, November 10, 2020, 09:06: IV4 Close. Sources off.

Tuesday, November 10, 2020, 09:07: IG1, power, & Turbo pumps off.

Tuesday, November 10, 2020, 10:15: Waterline purged. Venting.

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

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

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

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

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

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

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

AS

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

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

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

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

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

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

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

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

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

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

AS

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

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

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

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

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

 FM

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Friday, January 29, 2021, 10:08:

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

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

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

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

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

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

AS

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

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

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

Remove, add salts, EE ok.

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

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

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

AS

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

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

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

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

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

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

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

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

 FM

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

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

No sign whatsoever of a spark  to any device.

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

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

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

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

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

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

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

AS

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

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

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

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

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

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

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

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

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

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

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

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

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

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

FM

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

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

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

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

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

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

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

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

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

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

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

The system was vented to  make clearance on the waterlines as a very small continuous discharge was observed.

The inspection revealed some marks on the HS water line (sideview photo). From the the bottom and from real close (zoom and backview photo) the marks are quite noticeable with shinny copper in the middle and dark circles around.

The GND line is routed in such a way that sits on top of the ion gauge chamber (gnd-ig1) this could explain why the vacuum had small oscillation during the current limited events.

Moreover, the GND line has the steerer cables tied to it, this could explain why one of the steerers got affected after the sparks.

Also, the GND line is in contact with a dark grime that goes all the way into the first skimmer (gnd-quad). I think the grime observed inside the test stand might have become conductive, or if this is trace from a previous flashover, this  is good path to flash again.

The EE and the plasma electrode were removed and they show signs of buildup. Cleaned and reinstalled

See e-log entry: 884:

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

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

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

AS

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

Friday, February 05, 2021, 06:23:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

FM

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Re-salted. PE removed. EE Cleaned

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

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

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

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

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

Swap & tighten.

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

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

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

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

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

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

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

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

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

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

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

FM

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

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

AS

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

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

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

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

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

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

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

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

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

 FM.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Hi Fernando,

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

Jas Uppal 

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

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

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

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

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

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

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

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

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

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

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

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

I will create clearance from collimator wire to HS waterlines.

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

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

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

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

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

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

HS waterlines were very tight to line up.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

 Straight tube target / TGHT for outgassing.

Wednesday, June 02, 2021, 11:06: Roughing.

Wednesday, June 02, 2021, 12:15: TP1B on. 

Wednesday, June 02, 2021, 12:54: TP1 A on. IG1 on. 

Wednesday, June 02, 2021, 14:58: Vacuum @ 2.24e-06T

Wednesday, June 02, 2021, 15:01: Waterlines opened. vacuum remained stable.

Wednesday, June 02, 2021, 15:02: Power / sources on.

Thursday, June 03, 2021, 11:18: Auto-ramping TGHT @ 2 A per min to 580A. 

Sunday, June 06, 2021, 21:26: Auto-cooling @ 1 A per min. 

Monday, June 07, 2021, 08:33: Power/sources off. IG1 off. Turbo pumps off.