Monday, January 11, 2016, 09:02: Turbos stopped.

Monday, January 11, 2016, 12:58: Venting

Roughed down yesterday due to change of plans.

Tuesday, January 12, 2016, 09:58: Turbos started.

Thursday, January 14, 2016, 11:44: Turbos stopped.

 Friday, January 22, 2016, 11:07: Stopped turbos

Anders Mjos wrote:

HS water lines blanked. Monday, June 04, 2012, 11:40: Roughing. Monday, June 04, 2012, 11:58: Starting turbos.  Monday, June 04, 2012, 12:06 : Turbos at speed. Vacuum 1.5 E-5

 Tuesday, June 26, 2012, 16:06: Turbos off.

Tuesday, June 26, 2012, 17:20: Vented.

In preparation for RFQ target and leak troubleshooting.

Tuesday, December 04, 2012, 11:04: Turbos off (vacuum at 3.8E-7 T)

Water lines purged.

Tuesday, December 04, 2012, 15:03: Venting

Tuesday, December 04, 2012, 15:32 : Vented

Aurelia to do a visual test later.

Wednesday, April 20, 2022, 13:41: IG6 Off. TP6 & TP2 off.

Tests by AL were complete. Installed a fresh gasket on the rear window.

Thursday, April 21, 2022, 12:04: BV6 open. Roughing.

Thursday, April 21, 2022, 12:06: BV2 open.

Thursday, April 21, 2022, 12:11: TMS:TP6 on.

Thursday, April 21, 2022, 12:15: TMS:TP2 on.

Thursday, April 21, 2022, 12:16: TMS:TP6 Green.

Thursday, April 21, 2022, 12:20: TMS:TP2 Green.

Variable leak valve with serial number F3-592 has been replaced by F3-649 due to regulating problems described previously by Fridhelm Ames.

Anders Mjos wrote:

Variable leak valve with serial number F3-592 has been replaced by F3-649 due to regulating problems described previously by Fridhelm Ames.

 The variable leak valve F3-592 has been repaired. Contaminated diaphragm was replaced. See attachment for details.

Anders Mjos wrote:

Anders Mjos wrote: Variable leak valve with serial number F3-592 has been replaced by F3-649 due to regulating problems described previously by Fridhelm Ames.  The variable leak valve F3-592 has been repaired. Contaminated diaphragm was replaced. See attachment for details.

 The leak valve has been tested with He and a leak detector. The leak valve could regulate in the complete range of the leak detector. 10^-11 to 10^-4 atm cc/s

CuLCW will be shut off tomorrow. Valved off water supply to MB1 and TSG to minimize air into the system. Turbos are off.

Thursday, January 23, 2020, 16:05: Restarting vacuum and TPs

 Thursday, August 03, 2017, 17:00: Restarted TPs

The ISAC was left with the turbo pumps and water supplies running. Just the power supplies off. Monday, March, 23, 2020.

Check daily

Thursday, March 26, 2020, 13:25: Vacuum ok at 3.2e-07T. All status ok.

Friday, March 27, 2020, 09:00: Checked via epics. There appears to have been a trip. 

Vacuum at 7.953T . The trip looks to have occurred around midnight. (See attached*)

Friday, March 27, 2020, 11:15: MCR shut down supply / return on DI water supply to be on the safe side.

Friday, March 27, 2020, 11:20: Monitor. Control room has my cell number now as well as it's on my TRIUMF profile. Beam line side ok.

Monday, March 30, 2020, 06:26: Vacuum @ 8.583T.

Tuesday, March 31, 2020, 10:03: Vacuum @ 8.016T. 

Wednesday, April 01, 2020, 11:51: Vacuum @ 8.205T.

Thursday, April 02, 2020, 11:41: Vacuum @ 8.709T.

Friday, April 03, 2020, 05:05: Vacuum @ 9.213T. 

Tuesday, April 07, 2020, 10:46: Vacuum @ 11.922T. 

Tuesday, April 28, 2020, 11:11: Venting. 

Aaron Schmidt wrote:

The ISAC was left with the turbo pumps and water supplies running. Just the power supplies off. Monday, March, 23, 2020. Check daily Thursday, March 26, 2020, 13:25: Vacuum ok at 3.2e-07T. All status ok. Friday, March 27, 2020, 09:00: Checked via epics. There appears to have been a trip.  Vacuum at 7.953T . The trip looks to have occurred around midnight. (See attached*) Friday, March 27, 2020, 11:15: MCR shut down supply / return on DI water supply to be on the safe side. Friday, March 27, 2020, 11:20: Monitor. Control room has my cell number now as well as it's on my TRIUMF profile. Beam line side ok. Monday, March 30, 2020, 06:26: Vacuum @ 8.583T. Tuesday, March 31, 2020, 10:03: Vacuum @ 8.016T.  Wednesday, April 01, 2020, 11:51: Vacuum @ 8.205T. Thursday, April 02, 2020, 11:41: Vacuum @ 8.709T. Friday, April 03, 2020, 05:05: Vacuum @ 9.213T.  Tuesday, April 07, 2020, 10:46: Vacuum @ 11.922T.

Tuesday, April 07, 2020, 10:53:

Tried pumping down chamber with roughing pump. Looks like there is water in the system. Will leave it as is for now.

Tuesday, April 28, 2020, 12:30

Removed SiC#40 target and pumped down with HS lines blanked off. Used recycled SST gaskets.

Tuesday, April 28, 2020, 13:00

Still problem with water in the system. CG1 at about 25 Torr. Purging all water lines and pumping down again.

The vacuum behaved erratic over night with excursion up into the mid 10^-6 Torr range. To investigate the chamber was vented. With the doors open, the o-rings and sealing surfaces were cleaned. When pumping down again a vacuum leak could be heard at the front door by the lock. The chamber was vented again twice, finally the two o-rings were swapped. This removed the large leak. The door is prevented from contacting the box at the lock, which is likely the source of the leak.

1) When opening FC0 a spike occurs in the vacuum on IG6 & IG1 (though not as bad). This spike trips off the optics, and if left unchecked, will trip off the TGHT / TBHT / Sources.

2) RGA is also unresponsive

3) Leak rates also noted in the Ar gas bottle for the FEBIAD source. Previous trips had occurred in the most recent FEBIAD tests.

Optics tripped during FC0 removal. Vacuum spikes also detected on IG1 & IG6. No response on RGA.

Monday, November 19, 2018, 11:17: RGA providing no data. Stop, restart, multiple times. 

Monday, November 19, 2018, 11:25: RGA shut down. No response from and attempt to restart. 

Monday, November 19, 2018, 11:30: FC0 opened. Optics tripped. Vacuum increased on IG6 up to 7.9e-06T & IG1 increased to 4.4e-06T. Shut again to avoid tripping the entire system as the vacuum climbed.

Monday, November 19, 2018, 11:34: Auto-cooling @ 2A per min. Ramp down & trouble shoot after.

Monday, November 19, 2018, 14:11: Tap down HV on sources to 0V. Close & reset IV4. After closing IV4, spike in Vacuum on IG6 noted. Drop in vacuum on IG1 noted.

Monday, November 19, 2018, 14:33: FC0 opened/closed. Vacuum Spike on IG6 noted from 1.5e-06T to 1.02e-05T and back down to 1.5e-06T. IG1 unaffected with IV4 closed.

Source gas lines remain off. Setup for LD on FC0.

Tuesday, November 20, 2018, 08:30: Pump switched on. Convectron gauge @ 18.6 mTorr, spiked to 125 mTorr after opening the valve to the pump. IG1 @ 3.0e-07T.

Allow time for the small pump to pump lines down before re-opening.

Tuesday, November 20, 2018, 08:38: Small vacuum spike noticed on IG1 up to 4.0e-07T after reopening line to the small pump. Convectron gauge spiked to 1.75T.

Tuesday, November 20, 2018, 09:05: Opened valve to the small pump. Small vacuum spike noticed on IG1 up to 5.77e-07T after reopening line to the small pump. Convectron gauge spiked to 3.55 Torr from 125 mTorr.

The small leak in SV5 allows the lines to 'pump down into the mTorr range, however upon opening the line to the pump, the line pressure increases.

Tuesday, November 20, 2018, 10:44: Opened valve to the small pump. Small vacuum spike noticed on IG1 up to 5.02e-07T after reopening line to the small pump. Convectron gauge spiked to 3.25 Torr from 18.6 mTorr.

Pump ineffective at pumping out the gas lines. Replace

Tuesday, November 20, 2018, 10:48: Small pump shut off. Move forward with LD of FC0

Tuesday, November 20, 2018, 13:21 : Valve opened w/ LD connected. Base:

IG6: 1.91e-06T

Leak rate: 7.4e-09 atm-cc/sec.

Apply He around FC0 (cup in):

IG6: 1.91e-06T

Leak rate: 5.5e-05 atm-cc/sec. Wait for leak rate stablization.

Tuesday, November 20, 2018, 13:48:

Apply He around FC0 (cup out):

IG6: 2.75e-05T

Leak rate: 9.9e-05 atm-cc/sec. Wait for leak rate stabilization. Bellows specifically will max out the LD.

-Leak confirmed on the bellows of FC0 as suspected. Submitting a fault report.

-RGA scans checked and taken. No response/noted 'noise'. No error messages displayed, however we will check/swap out the filament for a new one to confirm.

Monday, November 26, 2018, 08:10: Turbos & ion gauges off.

Monday, November 26, 2018, 09:32: Quick vent shot & hold.

Monday, December 16, 2013, 08:53
Some additional smaller magnitude excursions have been observed since the fist on on Dec. 12th. See attached plot. 

*Vacuum from previous test still active, minus turbo pumps. Same target, & heat shield as well.*

Wednesday, February 15, 2017, 13:38: Both Turbo pumps started.

Wednesday, February 15, 2017, 13:43: Ion gauge on. TP1B @ speed 42 KRPM.

Wednesday, February 15, 2017, 13:51: RGA on. Vacuum @4.79E-05T.

Monitor water & vacuum with the RGA.

Thursday, February 16, 2017, 09:05: Main water supply & return shut off to the test stand. Purged. Vacuum @ 7.13E-07T.

Thursday, February 16, 2017, 09:16: Vacuum @ 3.59E-07T. Confirms water leak

Thursday, February 16, 2017, 09:17: RGA stopped.

Thursday, February 16, 2017, 09:20: RGA restarted.

Thursday, February 16, 2017, 09:30: Open main supply & return water supply. Individual valves are closed.

Thursday, February 16, 2017, 09:35: Open supply and return to FS #2. Vacuum @ 3.24E-07T. No response on RGA

Thursday, February 16, 2017, 09:40: Open supply and return to FS #3. Vacuum @ 6.76E-07T. Response on RGA. (Leak detected)

Thursday, February 16, 2017, 09:42: Close main Supply & Return. Purge & close FS #2 & FS #3 . Allow vacuum to stabilize.

Thursday, February 16, 2017, 09:50: Open main supply & return water supply. Open supply and return to FS #3. Vacuum @ 6.76E-07T. Response on RGA. (Leak confirmed)

Thursday, February 16, 2017, 09:53: Close main Supply & Return. Purge & close FS #3 . Allow vacuum to stabilize.

Thursday, February 16, 2017, 09:55: Open main supply & return. All valves are closed. Vacuum @ 3.51E-07T

Thursday, February 16, 2017, 10:00: Open supply and return to FS #4. Vacuum @3.26E-07T. No response on RGA.

Water leak confirmed in FS #3

Thursday, February 16, 2017, 10:05: Close main Supply & Return. Purge & close FS #4 . Allow vacuum to stabilize.

Thursday, February 16, 2017, 10:37: RGA off.

Thursday, February 16, 2017, 10:38: Ion gauge. Turbos off

Thursday, February 16, 2017, 11:58: Venting

Friday, February 17, 2017, 14:10: Roughing.

Friday, February 17, 2017, 14:30: Both Turbo pumps started.

Friday, February 17, 2017, 14:36: Ion gauge on.

Friday, February 17, 2017, 14:44: RGA on. Vacuum @ 2.32E-05T. Note* Waterlines FS #3 currently pressurized with 38 PSI Helium.

Monday, February 20, 2017, 08:26: Vacuum @ 2.60E-07T

Leak is apparent on RGA via Helium. He @ 20 PSI

Monday, February 20, 2017, 09:55: He in line brought up to 40 PSI. Monitor on RGA.

Monday, February 20, 2017, 10:00: No response on RGA. Connectivity gaps?. 

Monday, February 20, 2017, 10:05: RGA restarted. 

Monday, February 20, 2017, 10:39: Top cage removed from test stand. Waterlines purged of Helium. Immediate drop in RGA Helium reading.

Monday, February 20, 2017, 11:23: FS #3 (K) re-routed with return from (F). EE (K) pressurized with He @ 20-30 PSI. No significant response on RGA. Purge He

Monday, February 20, 2017, 11:36: FS #3 (K) returned back to (G). Return connected through (E). Pressurized to 20-30 PSI. No significant response on RGA. Purge He

Monday, February 20, 2017, 11:46: FS #3 (K) routed through to (H). (F) return to return. Pressurized to 20-30 PSI. Left pressurized for one hour

Monday, February 20, 2017, 12:51: No response on RGA. He Purged.

Monday, February 20, 2017, 12:55: Re-pressurize all of FS #3 with He @ 30 PSI.

Monday, February 20, 2017, 13:00: Purge Helium. Switch to water.

Monday, February 20, 2017, 13:12: Water supply/return on. No response on RGA.

Monday, February 20, 2017, 13:22: Slow response noted on RGA. Slow climb on water observed.

Monday, February 20, 2017, 13:30: Slight increase from 2.52E-07T to 3.26E-07T noted on Vacuum. Purge water lines. Reconnect/route lines & Test.

Monday, February 20, 2017, 13:40: FS #3 (K) re-routed with return from (F). EE (K). Open waterlines & observe.

Monday, February 20, 2017, 13:57: No response on RGA or Vacuum. Purge water & Re-route lines.

Monday, February 20, 2017, 14:05: FS #3 (K) returned back to (G). Return connected through (E). Open waterlines & observe.

Monday, February 20, 2017, 14:10: The water leak is apparent on (G) & (E) route. Vacuum climbed from 2.80E-07T to 3.33E-07T. RGA shows increase on water.

Monday, February 20, 2017, 14:14: Purge water lines.

Monday, February 20, 2017, 14:21: FS #3 (K) routed through to (H). (F) return to return. Waterlines opened to rule out (F) & (H) route.

Monday, February 20, 2017, 14:30: No response on RGA. Vacuum Stable. Purge water & Re-connect lines back to standard.

Monday, February 20, 2017, 15:22: Intermittent purging. Flow meter paddles pick up speed with air if purged for too long.

Tuesday, February 21, 2017, 08:34: RGA off, Ion gauge off, Turbos off.

Tuesday, February 21, 2017, 09:32: Venting.

A new power supply was installed today by John Chow. Due to differences in pin configuration of the controls, a change to the cabling is required. Contacted controls (Julie) for support.