The Swagelok fitting on the return side of the flow sensor for the HS circuit was tightened to stop the leak. See e-fault 8650

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.

The pump failed to pump down below 2 Torr. on Friday 15th E-fault 8680 submitted. Vacuum group will replace the pump today

Anders Mjos wrote:

The pump failed to pump down below 2 Torr. on Friday 15th E-fault 8680 submitted. Vacuum group will replace the pump today

Edi Dalla Valle from vacuum group replaced the roughing pump TSG:RP1 in the morning. However, the pumping curve showed a leak: see attachment. It was suspected the VCR water line connection between the lid and the base of the target Heat Shield. After venting the chamber found the VCR connection between the lid and the base forgotten finger tight. Tighten it with wrenches and restarted pumping.

Aurelia Laxdal wrote:

Anders Mjos wrote: The pump failed to pump down below 2 Torr. on Friday 15th E-fault 8680 submitted. Vacuum group will replace the pump today Edi Dalla Valle from vacuum group replaced the roughing pump TSG:RP1 in the morning. However, the pumping curve showed a leak: see attachment. It was suspected the VCR water line connection between the lid and the base of the target Heat Shield. After venting the chamber found the VCR connection between the lid and the base forgotten finger tight. Tighten it with wrenches and restarted pumping.

 Turned ON the water for the heat shield cooling circuit. Put a lockout padlock on the transformer breaker since Controls work still seems to be underway.

Aurelia Laxdal wrote:

Aurelia Laxdal wrote: Anders Mjos wrote: The pump failed to pump down below 2 Torr. on Friday 15th E-fault 8680 submitted. Vacuum group will replace the pump today Edi Dalla Valle from vacuum group replaced the roughing pump TSG:RP1 in the morning. However, the pumping curve showed a leak: see attachment. It was suspected the VCR water line connection between the lid and the base of the target Heat Shield. After venting the chamber found the VCR connection between the lid and the base forgotten finger tight. Tighten it with wrenches and restarted pumping.  Turned ON the water for the heat shield cooling circuit. Put a lockout padlock on the transformer breaker since Controls work still seems to be underway.

Turned ON the TGHT and ramping it up at a rate of 1A/30sec. Currently it's at 108A.

Aurelia Laxdal wrote:

Aurelia Laxdal wrote: Aurelia Laxdal wrote: Anders Mjos wrote: The pump failed to pump down below 2 Torr. on Friday 15th E-fault 8680 submitted. Vacuum group will replace the pump today Edi Dalla Valle from vacuum group replaced the roughing pump TSG:RP1 in the morning. However, the pumping curve showed a leak: see attachment. It was suspected the VCR water line connection between the lid and the base of the target Heat Shield. After venting the chamber found the VCR connection between the lid and the base forgotten finger tight. Tighten it with wrenches and restarted pumping.  Turned ON the water for the heat shield cooling circuit. Put a lockout padlock on the transformer breaker since Controls work still seems to be underway. Turned ON the TGHT and ramping it up at a rate of 1A/30sec. Currently it's at 108A.

Temperature measurements in progress for Ta46clone HP-SIS target, wrapped with 3 Ta foil heat-shields . Stopped for today at 360A for the TGHT and TBHT kept OFF.

Aurelia Laxdal wrote:

Aurelia Laxdal wrote: Aurelia Laxdal wrote: Aurelia Laxdal wrote: Anders Mjos wrote: The pump failed to pump down below 2 Torr. on Friday 15th E-fault 8680 submitted. Vacuum group will replace the pump today Edi Dalla Valle from vacuum group replaced the roughing pump TSG:RP1 in the morning. However, the pumping curve showed a leak: see attachment. It was suspected the VCR water line connection between the lid and the base of the target Heat Shield. After venting the chamber found the VCR connection between the lid and the base forgotten finger tight. Tighten it with wrenches and restarted pumping.  Turned ON the water for the heat shield cooling circuit. Put a lockout padlock on the transformer breaker since Controls work still seems to be underway. Turned ON the TGHT and ramping it up at a rate of 1A/30sec. Currently it's at 108A. Temperature measurements in progress for Ta46clone HP-SIS target, wrapped with 3 Ta foil heat-shields . Stopped for today at 360A for the TGHT and TBHT kept OFF.

 Temperature measurements in progress for Ta46clone HP-SIS target, wrapped with 3 Ta foil heat-shields. currently at 496A and the window is OK.

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

Aurelia Laxdal wrote:

Aurelia Laxdal wrote: Aurelia Laxdal wrote: Aurelia Laxdal wrote: Aurelia Laxdal wrote: Anders Mjos wrote: The pump failed to pump down below 2 Torr. on Friday 15th E-fault 8680 submitted. Vacuum group will replace the pump today Edi Dalla Valle from vacuum group replaced the roughing pump TSG:RP1 in the morning. However, the pumping curve showed a leak: see attachment. It was suspected the VCR water line connection between the lid and the base of the target Heat Shield. After venting the chamber found the VCR connection between the lid and the base forgotten finger tight. Tighten it with wrenches and restarted pumping.  Turned ON the water for the heat shield cooling circuit. Put a lockout padlock on the transformer breaker since Controls work still seems to be underway. Turned ON the TGHT and ramping it up at a rate of 1A/30sec. Currently it's at 108A. Temperature measurements in progress for Ta46clone HP-SIS target, wrapped with 3 Ta foil heat-shields . Stopped for today at 360A for the TGHT and TBHT kept OFF.  Temperature measurements in progress for Ta46clone HP-SIS target, wrapped with 3 Ta foil heat-shields. currently at 496A and the window is OK.

 Temperature measurements ended on Thursday, January 21, followed by cool down over night.

Friday, January 22, 2016, 15:30: Turbos started

Friday, January 22, 2016, 16:14: RGA ON

Monday, January 25, 2016, 10:30: Opened water. No response on vacuum.

BIAS / EZL / EE to  30 / 15 / 1.5 kV

Started auto-ramping to 300 / 200 A at 2 A/min.

Monday, January 25, 2016, 15:34: Aborted auto-ramping and stepped down to 180 A on TGHT / TBHT to conserve salts. Vacuum at 1.2 E-6 T

Tuesday, January 26, 2016, 08:30: Continue auto-ramping.

Tuesday, January 26, 2016, 09:15: Tuning by Alex

Wednesday, January 27, 2016, 08:24: Increased good/bad vacuum to 4/6 E-6T

Wednesday, January 27, 2016, 08:58: Continue ramping to TGHt 400 A

Thursday, January 28, 2016, 13:28: Continue ramping to TGHT / TBHT 420 / 220 A

Monday, February 01, 2016, 08:31: Ramp down started

Monday, February 01, 2016, 10:40: Isolation valve closed

Monday, February 01, 2016, 10:42: RGA off.

Tuesday, February 23, 2016, 09:07 Monday, February 01, 2016, 16:35: BIAS / EZL / EE off. Stopped turbos.

Tuesday, February 02, 2016, 09:28: Venting through turbo pump (air).

Wednesday, February 03, 2016, 08:35: Roughing

Wednesday, February 03, 2016, 09:06: Starting TP1B only.

Wednesday, February 03, 2016, 09:17: Force on TSG:IG1 for high vacuum test

Wednesday, February 03, 2016, 09:27 : EE current limiting around 1500 V with IG1 at 4E-5 T. EE can no longer hold more than some hundred volts before current limiting.

Wednesday, February 03, 2016, 10:01: Stopped turbo. Will vent and inspect insulator.

Wednesday, February 03, 2016, 10:06: Force removed from IG1.

Wednesday, February 03, 2016, 12:11: Venting

TEST 2

Cleaned PE and EE with acetone.

Friday, February 05, 2016, 15:05: Roughing

Friday, February 05, 2016, 15:48: Turbos started.

Friday, February 05, 2016, 15:56 : Turbos at speed. Vacuum at  3.7E-5 T

Tuesday, February 09, 2016, 08:55: Opened water to HS circuit. Vacuum stable at 6.2E-7 T. No response on RGA

Tuesday, February 09, 2016, 08:59: Started auto-ramping heaters.

Tuesday, February 09, 2016, 09:12: Opened IV4

Wednesday, February 10, 2016, 14:15: Increased voltage limit on TB HT

EE voltage limited over the weekend on Feb 14th. See attached.

Observed EE opening with telescope. Could not see any material buildup. Nice round shape visible.

Monday, February 15, 2016, 11:55: Starting ramp down of heaters.

Tuesday, February 16, 2016, 08:32: BIAS/EZL/EE off. Stopped turbos.

Tuesday, February 16, 2016, 08:37: RGA off.

Tuesday, February 23, 2016, 09:08: Venting

Cleaned up EE and around target tube. Removed PE

Tuesday, February 23, 2016, 10:40: Roughing

Tuesday, February 23, 2016, 11:09: Starting turbos

Tuesday, February 23, 2016, 11:47: Turbos at speed. Vacuum at 7.5E-6 T

Tuesday, February 23, 2016, 13:43: EE to 1500 V. 518 uA

Tuesday, February 23, 2016, 15:07: RGA on

Wednesday, February 24, 2016, 08:48: Opened cooling water supply for HS circuit. Vacuum stable at 3.6E-7 T. No response on RGA

Wednesday, February 24, 2016, 08:51: IV4 opened

Wednesday, February 24, 2016, 08:56: BIAS/EZL/EE to 30 / 13 / 1.5 kV. Started auto-ramping to 420 / 220 A at 2 A/min.

Tuesday, March 01, 2016, 06:30: EE went into current limiting.

Tuesday, March 01, 2016, 08:30: Lowered EE voltage to 200 V

Tuesday, March 01, 2016, 09:41: Started cool down of target.

Tuesday, March 01, 2016, 09:50: RGA off

Tuesday, March 01, 2016, 13:27: BIAS / EZL / EE off. Stopped turbo pumps

Wednesday, March 02, 2016, 08:20: Venting

 The insulator for the TGHT terminals cracked during an attempt to remove a seized bolt.The right TGHT block was removed with the target and the bolt cut to remove the target. The single stand-off insulator on the target assembly cracked in the process.

Friday, March 04, 2016

Re-installed the TGHT terminal with new Keensert.

Two Ta-tubes sealed with 2 end caps each placed in the vacuum chamber. 

Friday, March 11, 2016, 15:03: Rouging

Monday, March 14, 2016, 09:43: Caps still on the tube. Vacuum on CG1 5 mT

Wednesday, March 16, 2016, 08:37: Venting

Tuesday, March 29, 2016, 14:43: Roughing.

 Wednesday, March 30, 2016, 14:33: Venting   -AM

to test the effect of extraction when biasing of the target.

Anders Mjos wrote:

to test the effect of extraction when biasing of the target.

 Testing finished. Switched back to negative polarity.

Monday, May 02, 2016, 16:01: Roughing.

Monday, May 02, 2016, 16:35: Turbos started -AM

 Monday, May 02, 2016, 16:43: Turbos at speed. Vacuum at 1.6E-5 T - AM

Tuesday, May 03, 2016, 08:15: Opened water  supply for heat shield. Vacuum stable at 2.5E-7 T. No response on RGA.

Tuesday, May 03, 2016, 08:33: Sources on

Tuesday, May 03, 2016, 08:37: Auto ramping TGHT/TBHT to 420A/220A @ 2A/min

Tuesday, May 03, 2016, 08:44: Sources off Except TGHT/TBHT

Tuesday, May 03, 2016, 08:47:

 Tuesday, May 03, 2016, 12:42:

Tuesday, May 03, 2016, 15:29;

Wednesday, May 04, 2016, 08:00:

Wednesday, May 04, 2016, 12:53:

Wednesday, May 04, 2016, 14:56: TSHWSW-1: 8 Psi , Gauge below: 106 Psi

 Wednesday, May 04, 2016, 15:01: Begin auto-cooling @ 2A/min.

Thursday, May 05, 2016, 08:33: TBHT/TGHT off. Ion gauge off. Turbo pumps off.

Friday, May 06, 2016, 08:10: Water lines purged. Power supply off. Venting.

Friday, May 06, 2016, 10:18: Begin roughing

Venting: VCR on HS not closed

Friday, May 06, 2016, 12:58: Roughing

Friday, May 06, 2016, 13:22: Started turbos

Friday, May 06, 2016, 15:32: Vacuum at 1.2E-5 T

Monday, May 09, 2016, 09:07: Opened water  supply for heat shield. Vacuum stable at 2.78E-7 T.

Monday, May 09, 2016, 09:16:

Monday, May 09, 2016, 09:35: Auto ramping TGHT/TBHT to 420A/220A @ 2A/min.

Monday, May 09, 2016, 13:26:

Tuesday, May 10, 2016, 08:18:

Tuesday, May 10, 2016, 12:36:

Tuesday, May 10, 2016, 15:21:

Wednesday, May 11, 2016, 08:45:

Wednesday, May 11, 2016, 14:13:

Wednesday, May 11, 2016, 17:39: Ramping down TGHT/TBHT -AM

Thursday, May 12, 2016, 08:04: Ion gauge off. Turbo pumps off.

Thursday, May 12, 2016, 11:08: Water lines off/purged. Venting.

Thursday, May 12, 2016, 11:32: Source off, lock on.

Thursday, May 12, 2016, 13:00: Begin Roughing.

Thursday, May 12, 2016, 13:40: Turbo Pumps started

Thursday, May 12, 2016, 13:46: Ion gauge switched on.

Friday, May 13, 2016, 08:33: Opened water  supply for heat shield. Vacuum stable at 3.70E-7 T.

Friday, May 13, 2016, 10:01: Auto ramping TGHT/TBHT to 420A/220A @ 2A/min.

Friday, May 13, 2016, 13:55

Monday, May 16, 2016, 11:29:

Monday, May 16, 2016, 15:59:

Note: RGA misread.

Tuesday, May 17, 2016, 15:15:

Note: RGA Misread.

Wednesday, May 18, 2016, 14:30: IV4 open. FC0 open

Wednesday, May 18, 2016, 14:58: FC0 closed.

Thursday, May 19, 2016, 16:26:

Friday, May 20, 2016, 14:59:

Tuesday, May 24, 2016, 15:31:

Thursday, May 26, 2016, 15:18:

Friday, May 27, 2016, 15:27: IV4 Closed

Monday, May 30, 2016, 08:35:

Monday, May 30, 2016, 08:54: Auto ramp down TGHT/TBHT @ 2A/1A per min to 0A.

Tuesday, May 31, 2016, 08:25: Ion gauge off. Turbo pumps off.

Wednesday, June 01, 2016, 09:10: Venting

Wednesday, June 01, 2016, 9:45: Water lines purged, power off.