Thermocouples connected. Test HV

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Thermocouples attached on 5 X 5 multi-pin:

O - O

O - X

O - X

X - X

X - X

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

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

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

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

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

Data logger connected as per FBP

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

See elog# 946

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Masses showed around mass:

-130-140

-39-40

-23-28

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

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

Traces masses:

-39-40

-23

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

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

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

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

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

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

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

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

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

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

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

TGHT / TBHT @ 5 / 5 A ok

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Wednesday, April 26, 2023, 11:16: System ready check - OK. Manually set.

TGHT / TBHT @ 5 / 5 A

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

Anode @ 100 V - 7.326mA

Coil @ 10 A.

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

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

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

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

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

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

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

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

Anode @ 100 V = 4.884 mA

Anode @ 200 V = 7.326 mA

Anode @ 300 V = 10.989 mA

Anode @ 400 V = 13.431 mA

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

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

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

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

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

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

Anode @ 100 V = 9.768

Anode @ 200 V = 13.431 mA

Anode @ 300 V = 15.873 mA

Anode @ 400 V = 18.315 mA

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

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

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

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

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

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

New TiC LP-FEBIAD Target installed.

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

Monday, May 01, 2023, 21:42: TP1B on 

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

Monday, May 01, 2023, 21:57: IG1 on. 

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

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

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

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

TGHT / TBHT @ 5 / 5 A

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

Anode @ 100 V - 10.989 mA

Coil @ 10 A.

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

Tuesday, May 02, 2023, 12:20:

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

Anode @ 100 V = 10.989 mA

Anode @ 200 V = 12.210 mA

Anode @ 300 V = 12.210 mA

Anode @ 400 V = 13.431 mA 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Calibrated window installed on the beam line.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Friday, May 17, 2024, Spare FEBIAD Development target installed

Friday, May 17, 2024, 17:00: Roughing

Friday, May 17, 2024, 17:38:  TP1B started.

Friday, May 17, 2024, 17:43 TP1B Green. OK.

Friday, May 17, 2024, 17:46 : TP1A on.

Friday, May 17, 2024, 17:54 : TP1A Green. OK.

 Tuesday, May 21, 2024, 09:47 :   TP1A and TP1B switched off. Source tray calibrated leak to be removed.

 Tuesday, May 21, 2024, 10:13 :   VV1 open for venting to atmospheric pressure.

Tuesday, May 21, 2024, 11:26 :  Source tray calibrated leak removed, target calibrated leak connected to gas line. Chamber closed, roughing valves open. Roughing down.

 Tuesday, May 21, 2024, 12:02  TP1B on

Tuesday, May 21, 2024, 12:04: TP1A on. 

 Tuesday, May 21, 2024, 15:12  gradually raising BIAS/EL/EE voltages to 50kV/25kV/2kV.

Tuesday, May 21, 2024, 15:58  increasing BIAS to 50+kV, watching for sparks.

Tuesday, May 21, 2024, 16:38: voltage stable at 55kV. after 10 minutes, of high voltage with no sparks, dropping the voltages to 0V.

Wednesday, May 22, 2024, 11:36:  increasing voltage BIAS/EL/EE to 30kV/15kV/1.5kV.

Wednesday, May 22, 2024, 11:56 gradually increasing COIL to 80A, letting vacuum recover as necessary. 

Wednesday, May 22, 2024, 13:31:  COIL to 90A, recovering vacuum.

 Wednesday, May 22, 2024, 16:58 increasing TGHT TBHT to 440A/290A at 1A/30s. reducing COIL to 0A and voltages to 0V overnight

Thursday, May 23, 2024, 11:14 :  increasing voltage BIAS/EL/EE to 30kV/13kV/1.5kV.

Thursday, May 23, 2024, 11:33:  Sensor on beam line vacuum TMSIG6 not working. reports bad vacuum, despite both TMSTP6 TMSTP2 running at full speed. Likely that vacuum is at appropriate level.

Thursday, May 23, 2024, 11:35: turning on optics and confirming correct tune.  --- cannot do this due to interlock on TP6.  investigating problem. -- switched to filament 2 on control panel

Thursday, May 23, 2024, 13:14:  after setting magnet to argon-40, running degaussing script for coil / anode optimization  - measure_id= 6220.  heat map at bottom. . optimal point at 120V 40A (local maximum)

Thursday, May 23, 2024, 13:45:  allowing vacuum to recover after scan. vacuum during scan was approximately 4e-6 T

Thursday, May 23, 2024, 13:57 running mass scan with gas on -  2024-05-23-14-25 LP FEBIAD backup leak 1.txt

Thursday, May 23, 2024, 14:29 mass scan gas off (purged) - 2024-05-23-15-03 LP FEBIAD backup leak 2.txt

Thursday, May 23, 2024, 15:04   increasing tght tbht to 490A 320A 

Thursday, May 23, 2024, 15:26:  when at TGHT TBHT = 461A/313A, the anode power supply began current limiting (shorted to hvc)

Thursday, May 23, 2024, 15:28  cooling to 460A/310A

Thursday, May 23, 2024, 15:35  cooling to 450A/300A 

 Thursday, May 23, 2024, 15:44  stopped cooling at 455A/305A as the anode became UNshorted.

Thursday, May 23, 2024, 16:19  mass scan with gas off - 2024-05-23-16-18 LP FEBIAD backup leak 3.txt

Thursday, May 23, 2024, 16:21   gas on - mass scan -  2024-05-23-16-51 LP FEBIAD backup leak 4.txt

Thursday, May 23, 2024, 16:52 :  increasing TGHT TBHT again to test anode shorting threshold:  - shorted at: 458A/308A.  then decreased to 450A/300A, did not UNshort until after a few minutes at that current.  shorted when increased to 456/306

Thursday, May 23, 2024, 17:22   decreasing voltages to 0V

 Thursday, May 23, 2024, 11:14 :  increasing voltage BIAS/EL/EE to 30kV/13kV/1.5kV.

 Tuesday, May 28, 2024, 12:59  cooling target to 0A. will remove target to attempt fix on anode short.

 Tuesday, May 28, 2024, 17:17   TGHT TBHT at 0A. TP1A and TP1B off.

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. 

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.

 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. 

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. 

Gas line is attached. 

Wednesday, November 13, 2024, 14:18: Roughing.

Wednesday, November 13, 2024, 18:20: Closed backing valves. Vacuum @ 2.140 T? 

Thursday, November 14, 2024, 06:23: Venting manually.  

Thursday, November 14, 2024, 06:50: Left line slightly un-seated. Swapped out waterline gaskets. Close. Roughing.

Thursday, November 14, 2024, 07:22: TP1B on. 

Thursday, November 14, 2024, 07:33: Backing pressure below 0.100T. TP1A on. 

Thursday, November 14, 2024, 07:43: TP1A Tripped. Backing pressure @ 0.067T.

Thursday, November 14, 2024, 07:47: TP1B off to bring backing pressure below 0.050T. 

Thursday, November 14, 2024, 07:56: Re-opened & Restarted TP1B

Thursday, November 14, 2024, 08:38: Re-closed. Will have to allow TP to spin down before opening the vent valve to give the interlock a reset. (We should remove that or have a bypass in the future)

Thursday, November 14, 2024, 08:46: Coordinated opening BV1A & BV1B simultaneously from 2 computers to bypass the interlock. Success. TP1B. On & green. TP1A started.  

Thursday, November 14, 2024, 08:52: TP1A at speed (Green) Teamwork makes the dream work!!! IG1 on.

Thursday, November 14, 2024, 13:41: Vacuum @ 1.10e-06T. Waterline FS#5 open. Vacuum ok.

Thursday, November 14, 2024, 13:43: Power / Sources on. 

Thursday, November 14, 2024, 13:46: Checks. TGHT / TBHT to 5/5A. BIAS / EE / EZL to 1 / -0.5 / 1 kV. OK. Tap back down. Allow vacuum to drop further. Ready for operation. 

Thursday, November 14, 2024, 13:48: Open IV4. Timed out. Tighten sensor. Reset. Open IV4. 

Friday, November 15, 2024, 05:25: Vacuum @ 4.23e-07T. Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min. 

Friday, November 15, 2024, 09:01: Vacuum @ 6.01e-07T. Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. 

Friday, November 15, 2024, 11:46: Optics on. 

Friday, November 15, 2024, 11:54: TGHT tripped completely off & was unable to restart while turning up the HV. Was at 580 A. BIAS / EE / EZL was tapped up to near 27.5 / -1.5 / 13 kV.

Friday, November 15, 2024, 12:05: Verified nothing appears to have burnt up or similar. Unable to begin auto-cooling on TBHT as it requires both heater PS to operate. Will tap down TBHT manually. TGHT is set @ 0A.

Friday, November 15, 2024, 12:11: TBHT tapped down to 0A. 

Friday, November 15, 2024, 12:14: Once at 0 A, the TGHT PS status turned from red to black??? Was able to reset & turn it back on. Brought it up to 5 A. That's different. 

Friday, November 15, 2024, 12:23: Sources PS off. Will re-ramp on Monday.

Monday, November 18, 2024, 07:24: Vacuum @ 2.43e-07T. Auto-ramping TGHT / TBHT to 350 / 150 A @ 4 A per min. 

Monday, November 18, 2024, 09:17: Vacuum @ 2.69e-07T. Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. 

Monday, November 18, 2024, 13:02: Sources / Optics On.

Monday, November 18, 2024, 13:08: BIAS / EE / EZL to 20 / -1.5 / 13 kV.

Monday, November 18, 2024, 13:10: BIAS / EE / EZL to 27 / -1.5 / 13 kV. 

Monday, November 18, 2024, 13:20: TGHT Shut off again during a mass scan!

Monday, November 18, 2024, 13:22: Restarted TGHT. This is problematic. TGHT @ 580A. 

Monday, November 18, 2024, 13:25: Redo mass scan. 

Monday, November 18, 2024, 13:59: Mass / wire scans complete. HV to 0 kV. 

Monday, November 18, 2024, 14:00: Auto-cooling @ 2 A per min.

Tuesday, November 19, 2024, 10:04: IV4 closed

Tuesday, November 19, 2024, 10:06: Sources off.

Tuesday, November 19, 2024, 10:07: IG1 & TP off. 

Tuesday, November 19, 2024, 11:16: Power off / lockout. FS#5 purged. Venting. 

ABC 123 blah blah blah...

link to old e-log

See attached file for photos of the broken tube 

Test stand vented