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Message ID: 814     Entry time: Wednesday, September 30, 2020, 06:23
Author: Aaron Schmidt 
Target/No.#: C#2 
Source: LP-SIS 
Station: ITW 
Module: TM2 
Target Oven W.O#: 44139-9 
Heat Shield W.O#: 43515-2 
Status: In progress 
Subject: Conditioning C#2 

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. 

Attachment 1: C#2_-_Short_-_EZL.docx  225 kB  Uploaded Wednesday, October 28, 2020, 08:30
Attachment 2: C#2_Conditioning.docx  683 kB  Uploaded Wednesday, October 28, 2020, 08:30
Attachment 3: ITW-TM2-C#2-LP-SIS_Test_Stand.docx  237 kB  Uploaded Wednesday, October 28, 2020, 08:30
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