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Message ID: 804     Entry time: Tuesday, August 04, 2020, 15:07
Author: Aaron Schmidt 
Target/No.#: UCx 
Source: LP-SIS 
Station:  
Module:  
Target Oven W.O#: 44139-10 
Heat Shield W.O#: 43515-4 
Status: In progress 
Subject: UCx HS conditioning with PEEK assembly 

 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.

 

Attachment 1: UCx_-_HS_w-PEEK_Assy_-_43515-4.docx  718 kB  Uploaded Tuesday, August 11, 2020, 13:05
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