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Message ID: 940     Entry time: Tuesday, September 27, 2022, 07:55
Author: Aaron Schmidt 
Target/No.#: C#4 
Source: LP-SIS 
Station: ITE 
Module: TM4 
Target Oven W.O#: 44691-3 
Heat Shield W.O#: 44378-23 
Status: In progress 
Subject: Conditioning C#4 w/ thermocouples 

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.  

Attachment 1: C#4_Conditioning_-_HV_test.docx  1.588 MB  Uploaded Tuesday, October 18, 2022, 12:22
Attachment 2: ER-580-230-30kV-m7.txt  3 kB  Uploaded Tuesday, October 18, 2022, 12:22  | Show | Hide all
Attachment 3: ER-580-230-30kV-m39.txt  3 kB  Uploaded Tuesday, October 18, 2022, 12:22  | Show | Hide all
Attachment 4: ER-580-230-30kV-m134.txt  3 kB  Uploaded Tuesday, October 18, 2022, 12:22  | Show | Hide all
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