Wednesday, August 19, 2020, 08:52: Purging all lines, except FS#5, It was already purged / closed.

Wednesday, August 19, 2020, 11:24: Vacuum @ 1.76e-06T.

Wednesday, August 19, 2020, 11:29: FS#2 opened. Observable vacuum spike noted. vacuum @ 2.2e-06T. Purge & Close.

Wednesday, August 19, 2020, 11:34: Vacuum @  1.76e-06T.

Wednesday, August 19, 2020, 11:36: FS#3 opened. Vacuum  @ 1.74e-06T.

Wednesday, August 19, 2020, 11:44: Vacuum @  1.67e-06T.

Wednesday, August 19, 2020, 11:47: FS#4 opened. Vacuum @ 1.65e-06T

Wednesday, August 19, 2020, 11:51: No spike observed

Wednesday, August 19, 2020, 11:52: Turbo Pumps off. To vent for Leak check w/ LD & He.

Thursday, August 20, 2020, 11:26: Blanked off & connected feed through (C) & (D) individually. Both to 120 PSI individually w/ He. No leak detected. 

Thursday, August 20, 2020, 11:35: Roughing.

Thursday, August 20, 2020, 13:00: TP1B started.

Thursday, August 20, 2020, 13:09: Before opening back valve w/ LD:

LD: 0.0e-09 atm-cc/sec

Thursday, August 20, 2020, 13:10: Opened valve.

LD: 2.2e-07 atm-cc/sec & Dropping. Likely left over from the lines initial tests. Vacuum @ 3.2e-04T & dropping.

Thursday, August 20, 2020, 13:17: 120 PSI of He on line (D) TGHT left side.

 LD: 1.3e-07 atm-cc/sec & Dropping. Vacuum @ 2.09e-04T & dropping.

Thursday, August 20, 2020, 13:27: LD: 1.0e-07 atm-cc/sec & Dropping. Vacuum @ 1.27e-04T & dropping. Disconnect He up top.

Thursday, August 20, 2020, 13:40: LD: 1.2e-07 atm-cc/sec. Vacuum @ 9.95e-05T & dropping. Connected He up top to line (C) TGHT right side.

Thursday, August 20, 2020, 13:43: 120 PSI on line. Spike occurring on TSG CG1A & TSG:CG1 B.

Thursday, August 20, 2020, 13:53: LD: 2.0e-07 atm-cc/sec. Vacuum @ 7.57e-05T & dropping. Gradual increase on leak rate for line (C)

Tuesday, August 25, 2020, 07:07: Beam line side of the TS tripped? Open BV6 & BV2.

Tuesday, August 25, 2020, 07:15: Beam line side TP6 & TP2 on.

Tuesday, August 25, 2020, 07:16: Venting Chamber side

Tuesday, August 25, 2020, 15:39: Aluminum water loop block installed. Roughing.

Tuesday, August 25, 2020, 19:11: Turbo pumps TP1A & TP1B on.

Tuesday, August 25, 2020, 19:13: TP1A off to avoid a trip.

Tuesday, August 25, 2020, 19:50: TP1A on. BV1A Bypass on 

Tuesday, August 25, 2020, 19:58: Ion gauge on. 

Wednesday, August 26, 2020, 06:15: BV1A Bypass off.

Multiple checks done on right TGHT (C) in the cold lab. Inconclusive leak detection

Reconnect He & LD to TS. TGHT (C) with Loop block in place.

Thursday, August 27, 2020, 08:09: Vacuum @ 1.49e-06T

Thursday, August 27, 2020, 08:11: Before opening back valve w/ LD:

LD: 0.0e-09 atm-cc/sec

Thursday, August 27, 2020, 08:13: Opened valve behind TP1B.

Thursday, August 27, 2020, 08:16:

LD: 0.0e-09 atm-cc/sec. Vacuum @ 1.49e-06T.

Thursday, August 27, 2020, 08:18: 120 PSI of He on line (C) TGHT Right side w/ loop block.

Thursday, August 27, 2020, 08:21: LD:  0.0e-09 atm-cc/sec. Vacuum @ 1.49e-06T.

Thursday, August 27, 2020, 08:31: Increase /  bump noted on LD

Thursday, August 27, 2020, 08:34: LD: 1.4e-08 atm-cc/sec. Slowly increasing. Vacuum @ 1.49e-06T.

Thursday, August 27, 2020, 08:39: LD: 4.0e-08 atm-cc/sec. Slowly increasing. Vacuum @ 1.49e-06T.

Thursday, August 27, 2020, 08:42: Closed Valve behind TP1B. Purge He.

Thursday, August 27, 2020, 10:02: Ion gauge off. Turbo pumps off.

Thursday, August 27, 2020, 11:04: Venting:

Removed loop block. Polished/Cleaned seat surface to remove 2 scratches. Applied no o-rings w/ vacuum grease. Pressurized with 120 PSI on the line w/ sniffer. No leak detected.

Thursday, August 27, 2020, 13:44: Roughing.

Thursday, August 27, 2020, 13:46: BV1A opened.

Thursday, August 27, 2020, 17:39: TP1B on.

Thursday, August 27, 2020, 17:52: TP1A on 

Tuesday, September 01, 2020, 07:44: Vacuum @ 8.23e-07T

Before opening back valve w/ LD: 0.0e-09 atm-cc/sec

Tuesday, September 01, 2020, 07:46: Opened valve behind TP1B.

Tuesday, September 01, 2020, 07:57: LD: 0.0e-09 atm-cc/sec. Vacuum @ 8.23e-07T.

Tuesday, September 01, 2020, 07:59: 120 PSI of He on line (C) TGHT Right side w/ loop block.

Tuesday, September 01, 2020, 08:20: LD:  0.0e-09 atm-cc/sec. Vacuum @ 8.16e-07T.

Tuesday, September 01, 2020, 08:21: Random Spike? Vacuum remained the same, however the LD jumped from 0.0e-09 atm-cc/sec to the mid-e-08 atm-cc/sec range. Literally for a couple seconds, then back to 0.0e-09 atm-cc/sec.

Odd, couple more random spikes.

Tuesday, September 01, 2020, 08:24: Closed valve behind TP1B to see if the spikes continue.

Tuesday, September 01, 2020, 08:34: Opened the TP1B valve. Immediate spike from 0.0e-09 atm-cc/sec to 2.2e-08 & 7.9e-08 atm-cc/sec noted.

Tuesday, September 01, 2020, 08:36: Close the valve behind TP1B. LD off.

Tuesday, September 01, 2020, 14:00:

New tubing installed.

Blue on FS#4 loop (A)(B)

Yellow on FS#2 Loop (C)(D)

Vacuum @ 8.30e-07T

Tuesday, September 01, 2020, 14:04: Opened FS#4 Vacuum stable @ 8.30e-07T.

Tuesday, September 01, 2020, 14:06: Opened FS#2 Vacuum stable @ 8.30e-07T.

Tuesday, September 01, 2020, 14:36: Closed FS#2 but not purged.. Vacuum stable @ 8.23e-07T.

Wednesday, September 02, 2020, 07:26: Ion gauge & Turbo pumps off. 

Wednesday, September 02, 2020, 08:50: Venting.

Install right TGHT (C)(D) line. Install FEBIAD. Clean out odd buildup / powder beneath optics tray.

Wednesday, September 02, 2020, 10:48: Roughing.

Wednesday, September 02, 2020, 11:19: TP1B on.

Thursday, September 03, 2020, 11:00: Vacuum @ 1.05e-06T. Waterlines are to be opened.

Thursday, September 03, 2020, 11:03: Opened FS#2. Vacuum Stable @ 1.03e-06T.

Thursday, September 03, 2020, 11:05: Opened FS#3. Vacuum Stable @ 1.03e-06T.

Thursday, September 03, 2020, 11:06: Opened FS#4. Vacuum Stable @ 1.03e-06T.

Thursday, September 03, 2020, 11:08: Opened FS#5. Vacuum Stable @ 1.03e-06T.

Thursday, September 03, 2020, 11:23: Vacuum remains stable @ 1.03e-06T.. PS on. Auto-ramp TGHT / TBHT to 350 / 150 A @ 2 A per min.