Anders Mjos wrote:

The Xantrex 10V 600 A power supply for the TBHT has been moved to ITE to replace the failed TGHT power supply

 A spare EMI-EMS 10 V - 500 A power supply was installed last Friday by John Chow. Dave Morris has connected the controls today and updated EPICS. The local voltage readback on the power supply does not work.

with Fernando

Tuesday, October 24, 2017: Testing setup with triple coil

Wednesday, October 25, 2017: Field mapping at 70 A and current/field measurements on triple coil.

The turbo pump will need replacement.

Powered down vacuum gauge and turbo pump controllers

Tuesday, January 02, 2018

Cycled power for TCSIOC and PLCIOC

TP2 and TP6 started

TP1B does not start. TP1B controller does not start up correctly - controller will have to be replaced. E-fault submitted (10739).

Controller for PS for Q1,6 was switching constantly. Unplugged and plugged back in resolved the problem

TP1A started

(Aaron Schmidt)

Wednesday, January 03, 2018, 08:15:  TSG:TP1B Still non-responsive.

Wednesday, January 03, 2018, 08:20: Power/sources on. Add Voltage/Amp and check power supplies.

BIAS - 300V Reads 290V - OK

EE - 300V Reads 298V - OK

EZL - 300V Reads 293 V - OK

CB1 - 10V Reads 10V - OK

VCB1 - 10V Reads 10V - OK

CBC (both)  - 10V Reads 9V - OK

TBHT - 10A Reads 9.9A (009 direct off PS) - OK

TGHT - 10A Reads 9.8A (007 direct off PS) - OK

Optics Check:

Magnet ok - Some optics start, some do not respond. Submit fault report for communications issues.

Fault Report submitted - 10742

Thursday, January 04, 2018, 14:38:

Kyle and Dave were able to get all the canbus optics for ISAC test stand re-configured except one device: TMS:Q2

"We investigated and it looks like the controller board for the TMS:Q2 supply is toast. Unfortunately these boards are a very old style so we don't have a surplus of replacements on hand. Our electronics shop did have some spares but the spares are not ready for use and need to have a few components soldered on. " - Kyle

The repaired controller board should be ready for next week.

Wednesday, January 10, 2018, 13:22: TS optics all fixed. Turbo pump TP1B is still out.

Pump found off on Tuesday morning.

Tuesday, May 22, 2018, 08:40: Starting TP1A

Tuesday, May 22, 2018, 08:47: TP1A at speed

Tuesday, May 22, 2018, 16:33: Source and optics off

Wednesday, May 23, 2018, 08:30: Stopped TP

Wednesday, May 23, 2018, 14:10: Water purged

Thursday, May 24, 2018, 08:38: TPs stopped

Thursday, May 24, 2018, 09:18: Venting

Thursday, May 24, 2018, 14:30: IG6 replaced (second attempt) by Anthony. System pumping down

Thursday, May 24, 2018: Configured coil to be (-) E&F, (+) G&H. Water should be supplied to both terminals in either configuration.

Mass separator magnet timed out. Tried reconfigure. Called Kyle from controls who power cycled the CANbus card. This resolved the issue

(From the Source tray swap out.) - AS

Tuesday, June 05, 2018, 11:25: BIAS / EZL / EE @ 52 / 24 / 2.8 kV. SPARK *knocked out optics, magnet & Turbo TMS:TP6. IV4 closed/opened/reset. TP6/optics restarted. Magnet still off.

Complete failure of the communications with the magnet.

Wednesday, June 06, 2018, 13:40: Canbus contoller was swapped by Kyle L from Controls group. The old card was dead and replaced with a new one. The magnet is back and running.

Thursday, June 21, 2018, 16:30: Short between ANODE and EE. Do not use until repaired.

Thursday, June 21, 2018, 16:32: Ramping TBHT/TGHT to 290 / 580 Aat 2 A/min

Friday, June 22, 2018, 07:49: Target at temperature. Vacuum at 1.0E-7 T

Monday, June 25, 2018, 09:10: Auto-cooling at 2A/min - AS.

Friday, June 29, 2018, 08:52: Turbos/PS/Sources/RGA/Ion gauge off.

Friday, June 29, 2018, 10:03: Venting.

Friday, June 29, 2018, 14:32: Roughing. Anode to EE short fixed.

Pin configuration between top 9-pin connector on Source Tray and terminal in high voltage rack. Measured 2018-08-21 by Aaron and Anders

Training: Venting and pump down

Friday, May 03, 2019, 08:30: Turbo pumps stopped.

Restarted TP. Note that CG1A is above 50 mTorr. CG1B shows 15 mTorr

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.

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

Anders Mjos wrote:

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.

 Ray from controls has updated EPICS and changed the cabling today. The power supply is operational.

NOTE: Current limit will need to be set in EPICS. Default value should be 0.1 mA for now.

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.

Determined on Friday April 16th that the water leak was on the coil negative circuit. This was determined by circulating water through once circuit at the time. Only HF and GE tested (not Extraction Electrode).

Friday, December 04, 2020, 13:34

Vacuum is at 3.6e-6 Torr and possibly still dropping. Starting HV tests with just a tube and wire hanging down from the feedthrough. Turned on power supply and started raising voltage.

Friday, December 04, 2020, 15:13

Achieved 75 kV. No sparking at any point along the way. Vacuum is around 3.1e-6 Torr. Will hold for about 30 minutes to confirm.

Friday, December 04, 2020, 16:07

Held 75 kV for ~35 minutes. Ramped down and shut off power supply. Vacuum is at 2.7e-6 Torr.

Monday, December 14, 2020, 11:30

Switched off all breakers in HV cage. Started HV testing of TM3 prototype.

Monday, December 14, 2020, 12:58

Possible first spark at 18 kV.

Monday, December 14, 2020, 14:51

Nothing interesting since then, up to 33.5 kV now.

Monday, December 14, 2020, 14:56

Possible spark at 34.5 kV. 35.5 kV, 36.5, 37.5, 38.5, 39, 39.5, 40.5, 41, 41.5, 42.5, 43 (bigger current spike), 43.5, 44 (vacuum jumped for a bit), 44.5, 45 (voltage drop and vacuum jump).

Monday, December 14, 2020, 16:14

Holding at 45 kV for 10 minutes. Each of these previous "sparks" occurred just after raising voltage. Will decrease step size to 250 V from 500 V if these get more significant.

Monday, December 14, 2020, 16:19

45.5 kV. Went to observe possible spark while Carla raised voltage. Saw small flash towards bottom left, unsure of depth, but perhaps farther to the back.

46 kV. Sparking maybe in the same location. Carla reduced voltage.

Monday, December 14, 2020, 16:47

47 kV. Sort of unstable every time voltage is raised. Decreasing step size to 250 V.

Monday, December 14, 2020, 17:11

48.75 kV. Decreased current limit to 0.005 mA a couple steps previously to see effects. Seems like the current bumps at the start of each voltage raise have dropped from 0.010 mA to 0.005 mA. This seems to indicate that the current limiting is working and is controlled by EPICS. Pierre thinks the prototype must be pretty clean since the testing has been pretty smooth up to this point.

Monday, December 14, 2020, 17:29

49.75 kV. Heard what sounded like an air piston in the background and also saw a large drop in voltage. Voltage dropped in a similar manner a couple minutes after but without the sound. No effect on the vacuum though.

Monday, December 14, 2020, 17:45

50 kV. Held for 8 minutes and then a sound again occurred that sounded like some sort of pneumatic system; along with this a total drop in voltage, but no change in vacuum Otherwise completely stable. Will hold for another 10 minutes or so and ramp down.

Monday, December 14, 2020, 17:53

50 kV. Stable. Starting ramp down.

Monday, December 14, 2020, 18:11

Voltage ramped down. Vacuum has been at around 1.13e-6 Torr throughout this. Shut off power supply. Dumped data to TM3HVtest-20201214-Prototype_2, and earlier I dumped to TM3HVtest-20201214-Prototype. GoPro is taped to vacuum box window.