Wednesday, January 12, 2022, 16:08 : HV ramped to 30kV, EZL=15kV, EE=-1.5kV

Ramping up to 250A on TGHT, 200A on TBHT. See MassMarkerTest#1 for ramp up values of the thermocouples.

Seeing some beam on FC0, changing magnet settings to Cs to check FC6 then will ramp up.

Thursday, January 13, 2022, 14:22 :  1.3e-10 approximately Cs on FC6. Optimal EE -2700V, slightly higher than standard on EZL.

 Ramping down to Na on the magnet, found 5 pA:

 Started a ramp up to nominal heater values (TGHT-500 A  TBHT-230 A) but too much HV sparking so aborted at TGHT-299 A and TBHT-230 A. Ramped HV down to 16kV to get sparking to slow down.

Ramped quickly back up to 30kV to get FC readings but since there is so much sparking, we decided to ramp everything down and open the vacuum chamber.

PLAN:

1. ramp down heaters, vent vacuum, open chamber.

2. Try to tape the thermocouples up so that they are further from ground.

3. Try to crimp the bottom of the mass marker tubes, and bend them upwards so they aren't facing ground.

4. Add a dedicated ground to the COIL power supply.

From Fernando:

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Monday, January 17, 2022, 09:52: IG1 on. Source PS off. HV Cage removed. - AS
Monday, January 17, 2022, 11:11: Cage on. TGHT/TBHT PS on. - AS

Monday, January 17, 2022, 11:23: PS/ Sources on. - AS

Monday, January 17, 2022, 14:00: HV ramped to 20kV, EZL 10kV, EE, -1500V. Ramping TGHT/TBHT to previous values of 250A/200A.

Monday, January 17, 2022, 16:51 : Back to previous heater values, didn't find any Cs on FC6 so went to Na. Tuned and found the tune the opposite of last time, all voltage wanted to go lower. Found 736pA, maybe better than last time because I tuned quite a bit.

Monday, January 17, 2022, 18:00: Ramping to TGHT 300A, TBHT 230A, where we had sparking problems last time.

Monday, January 17, 2022, 18:17 : So far no sparking issues so I will start to heat up the mass markers. One spark about 4 mins after ramping up, after that maybe 10 sparks/40mins or so. Too many....

Monday, January 17, 2022, 19:20 : Got to 20A on the mass markers, will ramp down now.

Friday, January 28, 2022, 18:49 : Yesterday opened the HV rack to re-start data logging on the thermocouples. This morning ramped everything up and started the heaters. Found the Na current around 250A on the target, but abandoned looking for it because the TGHT heating was causing lots of outgassing, which was causing bias sparks. In addition, there is a weird effect where the Na current spikes, then slowly decreases over the course of an hour or something, to values lower than before the heating. Could this be an indication of some thermal issues, like cold spots where things condense? Or something is drifting. The HV common point on the target is at the mass markers now instead of at the exit of the ion source, but I can't imagine you would see such a large difference. The thermocouples do not change in value during these long slow declines. In light of this, decided to just go up and see what the thermocouples read. Settings were close to what is shown above - bit lower on the HV but magnet the same.

Monday, January 31, 2022, 16:23: Power/sources off. Thermocouple reader off. HV rack open. -AS

Wednesday, February 02, 2022, 07:36: IG1 & Turbo pumps off.  - AS

Travis assisted in installing a temperature reading RTD from Omega (SA1-RTD-MTP) on the water supply. The RTD has been installed with a 503 Ohm resistor => 0V = -175.75 C, 10V = 205.71 C. The RTD has been connected to Ch 9 on the data logger.

Offset calibration data towards the SUPPLY temperature reading is attached.

Swapped RP2 out from a Varian SH-110 to a Varian PTS06001.

Wednesday, March 10, 2021, 14:20: RP2 on.

Wednesday, March 10, 2021, 14:27: Turbo pumps on

 e-fault submitted and vacuum group (Edi) notified.

Monday, September 14, 2015, 09:33: RP2 replaced by vacuum group

TMSRP2 has been struggling since the power bump occurred Nov 18, 2020

Monday, November 23, 2020, 09:48: Open TMS:PV2.

Monday, November 23, 2020, 09:51: Close TMS:PV2. CG2B @ 0.515T.

Monday, November 23, 2020, 09:52: TMS:RP2 off.

After disconnecting the backing line to RP2, a lot of water poured out of the line. May have back tracked from the vapour off of RP1 and the leaks on the chamber side. Both are on the same line.

Monday, November 23, 2020, 13:06: TMS:RP2 swapped w/ old Tri-Scroll pump. RP2 on.

Monday, November 23, 2020, 13:23: TMS:TP6 & TMS:TP2 on.

Monday, November 23, 2020, 13:29: Switch over FL1  to FL2 on IG6 Filament. IG6 on.

Monday, November 30, 2020, 10:12: CG2B @ 0.131T. TP6 & TP2 off. IG6 off. Close PV2 & shut off RP2.

Monday, November 30, 2020, 10:31: RP2 large Tri-scroll pump swapped back out for the small Varian RP.

Monday, November 30, 2020, 10:32: RP2 on.

Monday, December 07, 2020, 11:06: Turbo pump TP6 on.

Monday, December 07, 2020, 11:11: Turbo pump TP6 up to speed. TP2 on.

Monday, December 07, 2020, 11:14: IG6 on.

 Monday, August 23, 2021, 09:53: RP1 was swapped back to our original pump. (see e-log 889)

Derek informed that they test it overnight and performed well, and it's a bit slow but it goes down to 20 mT.

Current is at 36 mTorr and dropping.

Tuesday, August 18, 2020, 12:05: RP1 on

Tuesday, August 18, 2020, 12:10: RP1 off

Install Gas Ballast vapour port w/ filter.

Tuesday, August 18, 2020, 13:19: RP1 on

Disengage shipping locks*

Tuesday, August 18, 2020, 13:55: Turbo pumps on.

Tuesday, August 18, 2020, 14:02: TP1 A trip. TSG:CG1A pressure issue. Remove filter port on Gas ballast. Add blank.

TSG:CG1A pressure improving.

Tuesday, August 18, 2020, 14:37: TP1 A trip. TSG:CG1A pressure issue.

Tuesday, August 18, 2020, 14:48: Bypass BV1A. Switch on TP1 A.

Tuesday, August 18, 2020, 14:55: No trips* Bypass to remain until CG1A below 0.050T.

Tuesday, August 18, 2020, 21:58: Bypass removed. CG1A @ 0.041T.

After submitting a fault report (FR - ISAC Fault 12461) a Work Permit was issued (WP - C2019-07-19-1),

Controls tunnel the faulty signal to another ADC by removing signal no longer used at the Test Stand.

Test successful with a constant current power supply in the range 1 nA-40 nA.

TBD: does this work with beam?

Monday, August 23, 2021, 10:49: Aaron removed the Extorr RGA and install a blind instead.

When the new RGA arrives it will be changed.

Monday, June 18, 2018, 10:00: RGA removed from ISAC TS. Handed to Travis C. Communications issues found

Communications chip replaced.

 Tuesday, June 19, 2018, 08:36: Re-install RGA.

Tuesday, June 19, 2018, 10:29: RGA confirmed operational

Tuesday, February 03, 2015, 09:40: Venting

RGA installed on the 12" CF port below the Source Tray.

Wednesday, February 04, 2015, 13:45: RGA turned on and mass scan performed.

Friday, August 31, 2018, 10:10: The RGA will not re-connect to the computer. Manually turned it off while under vacuum to protect the filament before shutting down the turbo pumps.

Friday, August 31, 2018, 10:15: Ion gauge & turbo pumps off.

Wednesday, September 05, 2018, 10:00: Communications chip replaced by RH (Travis C.)

Wednesday, September 05, 2018, 10:40: Computer restarted to reconnect/reboot.

Wednesday, September 05, 2018, 11:05: RGA started

RGA Ionizer & Filament replaced as per SRS RGA manual.

The ionizer was found to be dirty and the previous RGA filament was broken. Initially the  old filament appeared to have warped and looked stuck to the anode grid/cage.

Both were replaced with clean parts. the support rods were also cleaned with acetone & methanol.

Parts used from the Replacement Ionizer Kit - SRS# O100RI

Repeller Cage - SRS Part# 7-00592

Anode Grid - SRS Part# 7-00591

Focus & Plate - SRS Part# 7-00590

ThO2/Ir Filament - SRS Part# 7-00611-720

Wednesday, December 05, 2018, 10:16: Roughing.

Probe bake out & RGA tuning required.

Wednesday, December 05, 2018, 11:08: Turbo pump on.

Wednesday, December 05, 2018, 11:13: Ion gauge on.

Wednesday, December 05, 2018, 13:38: TSG:BV1A Randomly shut off? TP1A tripped. Restarted.

Wednesday, December 05, 2018, 13:40: RGA switched on including the filament.

Thursday, December 06, 2018, 10:17: Vacuum @ 5.68e-07T on IG1 before Degas. Begin degas cycles 200 sec each, 1 min apart, 3 times.

Thursday, December 06, 2018, 10:30: Degas complete. Minimal change in IG1 Vac @ 5.70e-07T.

Tuesday, January 21, 2020, 13:42: The RGA was unable to connect. Typically connects on COM4, however it did not register. RGA Offline.

Brought in a separate RGA. Was able to connect & see the 2nd RGA ID on COM4. Removed 2nd RGA.

We likely need to replace / repair our communication chip again.

Wednesday, January 22, 2020, 13:21: The chip was replaced and the RGA reinstalled, however, the RGA is still no connecting on COM4.

The powersupplies added to the teststand for operation of the IGLIS source have been removed from the HV cage as well as the RFQ driver.. The connections of the 9PIN connector in the HV cage have been grounded and the wire used for an voltage offset of the source has been removed.

NOTE: The Anode PS cable (used for biasing the target with a FEBIAD) is left grounded --> has to be rewired when running a FEBIAD source - Anode PS is turned off

Just a quick check at the Test Stand:

1. The system operational (  white out not present ) with TSH:TBHT heating in progress.

2. Started the Archivers: for Source and Optics.

3. Removed bypass on TSH:SV5 since it's not necessary anymore.

4. Currently: TSH:TBHT=107A

Wednesday, April 18, 2012, 13:10: Roughing the vacuum chamber.

Wednesday, April 18, 2012, 13:34 : Turbo pumps started and at speed. Pressure 3.5 E-5 torr

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

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

Friday, June 03, 2016, 14:50: Turbo pumps started.

Friday, June 03, 2016, 15:22:  RGA on.

Monday, June 06, 2016, 15:40: RGA still connected. OK. Screen shot saved. Vacuum @ 8.5E-07T

Wednesday, June 08, 2016, 15:26: RGA off

Wednesday, June 08, 2016, 15:29: Ion gauge off. Turbo pumps off.

Thursday, June 09, 2016, 12:44: Venting -AM

Thursday, May 17, 2012, 15:14: Started roughing. Cooling lines blanked off.

Thursday, May 17, 2012, 16:52: Starting turbos.

Thursday, May 17, 2012, 17:00: Turbos at speed. Vacuum at 1.5E-5.