Wednesday, May 01, 2024, 12:44:  pumped down to rough vacuum, TP1B now on.

Wednesday, May 01, 2024, 12:49:  TP1A on.

Thursday, May 02, 2024, 9:10:  water cooling on. no effect on vacuum

Thursday, May 02, 2024, 10:02:  TGHT and TBHT heating to 100A/100A at 1A/30s

Thursday, May 02, 2024, 11:02:  TGHT and TBHT heating to 230A/230A at 1.4A/10s

 Thursday, May 02, 2024, 13:53:  increasing BIAS to 30kV, EE to 2500V, EZL to 13kV

 Thursday, May 02, 2024, 14:11:  increasing  TGHT  to 280A.

 Thursday, May 02, 2024, 14:18  seeing a few sparks decreasing BIAS temporarily

Thursday, May 02, 2024, 14:25 sparks continued. decreased TGHT to 260A and saw them subside. increasing bias again.

 Thursday, May 02, 2024, 14:42 conducting mass scan - 2024-05-02-15-05 mm LPSIS a.txt

 Thursday, May 02, 2024, 15:09   increased COIL to 20A. mass scan repeated.  2024-05-02-15-37 mm LPSIS b.txt

Thursday, May 02, 2024, 15:38 decreasing TGHT to 230A, COIL at 0A

Thursday, May 02, 2024, 15:43:   repeating mass scan. 2024-05-02-16-09 mm LPSIS c.txt   * no signal. very unexpected.

Thursday, May 02, 2024, 16:10:  increased COIL to 20A, repeating mass scan.  2024-05-02-16-35 mm LPSIS d.txt

Thursday, May 02, 2024, 16:35   decreasing BIAS, EE, EZL to 0V

Thursday, May 02, 2024, 16:50 increasing TGHT to 290A at 1A/30s, to be left hot overnight.

 Friday, May 03, 2024, 10:26 increasing BIAS to 30kV, EE to 2500V, EZL to 13kV

 Friday, May 03, 2024, 11:47 increasing COIL to  40A. repeating mass scan     -   2024-05-03-12-21 mm LPSIS g.txt

 Friday, May 03, 2024, 12:22  decreasing TGHT to 260A.    

 Friday, May 03, 2024, 12:32 mass scan:   - 2024-05-03-12-59 mm LPSIS g.txt     <- accidentally labeled g. cannot change

Friday, May 03, 2024, 13:01   decreased COIL to 20A.   mass scan:  2024-05-03-13-30 mm LPSIS i.txt

Friday, May 03, 2024, 13:31  decreased COIL to 0A. mass scan:   2024-05-03-13-59 mm LPSIS j.txt

 Friday, May 03, 2024, 14:01  reducing TGHT to 230A.  mass scan:  2024-05-03-14-37 mm LPSIS k.txt

Friday, May 03, 2024, 14:38   increasing coil to 20A.    mass scan:   2024-05-03-15-14 mm LPSIS l.txt

Friday, May 03, 2024, 15:15   increasing coil to 40A. mass scan:     2024-05-03-15-42 mm LPSIS m.txt

Friday, May 03, 2024, 15:43  COIL -> 0A. decreasing EE EZL BIAS to 0V.

Friday, May 03, 2024, 15:59   decreasing TGHT and TBHT to 0A at 1A/30s

Installed & roughing Friday. 

Monday, February 28, 2022, 08:07: Turbopump TP1B on.

Monday, February 28, 2022, 09:21: TP1A on.

New thermocouple setup:

Monday, February 28, 2022, 18:57 : Data logging started. Forgot to set interval, not sure what it is at....

PLAN:

Ramp up coil to 50A, record temperatures

Ramp coil down then ramp target and tube to same values as before, record temperatures.

Ramp coil as before.

Tuesday, March 01, 2022, 14:52: Vacuum @ 1.60e-06T. Waterlines opened - AS

Tuesday, March 01, 2022, 14:54: Vacuum ok.

Turbos stopped Wednesday night. Ready to be uninstalled after venting and water purging.

Tuesday, March 11, 2025, 14:36 Roughing. Target installed.

Tuesday, March 11, 2025, 15:06 TP1B turned on.

Tuesday, March 11, 2025, 15:10 TP1A turned on. 

Tuesday, March 11, 2025, 15:18 IG1 Turned on 6.25e-05T 

Tuesday, March 11, 2025, 16:39 Turned water on. Started autoramping TGHT/TBHT to 580/230A at 1A/30s

Wednesday, March 12, 2025, 11:03  slowly ramping BIAS/EE/EZL to 30/2.5/13 kV 

Wednesday, March 12, 2025, 14:00 no beam seen out. It seems that FC0 is working though. Investigation needed

Wednesday, March 12, 2025, 16:00 decreased HV to 0 to investigate. See report (to be released and attached) for more information

Friday, March 14, 2025, 09:20 :  increasing TGHT TBHT to 100A at 1A/30s, then to 580/230A at 1.7A/10s. 

Friday, March 14, 2025, 11:31 increasing BIAS/EE/EZL to 30/2.5/13 kV 

 Friday, March 14, 2025, 12:57    it appears that everything is stable. FC0 = 3.6e-10 A (VQSX).  beginning mass scan.  mass scan saved as '2025-03-14-13-30 MM a 0A.txt'

Friday, March 14, 2025, 14:12 mass separator focused at mass 115 to visualize indium.

Friday, March 14, 2025, 14:12  increasing MM current, following mass peak.

__ Current __ FC6 output __

    0A        1.9e-11

    1A        2e-11

    2A        2.22-11

    3A        4.6e-11

    4A        5.9e-10

    5A        3.6e-9

    6A        8.6e-9

 Friday, March 14, 2025, 14:39  conducting mass scan.   '2025-03-14-15-20 MM b 6A.txt'   after the scan, it was noticed that the mm current had failed at some point during the scan.

Friday, March 14, 2025, 15:27   conducting mass scan with 0A mm current.  saved as 2025-03-14-15-55 MM c 0A.txt

Friday, March 14, 2025, 15:55 ramping down HV

Friday, March 14, 2025, 15:56 ramping down TGHT TBHT to 0 (1A/30s) to assess and correct mm OL issue

Tuesday, March 18, 2025, 14:49 After bringing down vacuum to open test stand, the mass marker connection has been investigated. Two multipin connections have become disconnected, seems to be at a soldered junction.

Tuesday, March 18, 2025, 14:51    MM has been moved to different pins for operation. multipin will be fixed at a later date. Now test stand has been vacuumed down and TGHT TBHT brought to 580 230 for measurement.

Tuesday, March 18, 2025, 14:51 MM temperatures:

MM current    _____    temperature:

0A ___ 195.8°C

1A ___ 198.1

2A ___ 223.7°C

3A ___ 282.1°C

4A ___ 370.1­­­°C

5A ___ 486.4°C

6A ___ 631.6°C

Tuesday, March 18, 2025, 16:17 cooling TGHT TBHT at -1A/30s to 0A

Wednesday, March 19, 2025, 16:30 :  Mass marker replaced - new ceramic oven and sleeve, new reservoir with Indium - 0.102g.  Same transfer tube and target assembly

Wednesday, March 19, 2025, 16:45:  Install complete, roughing vacuum

Wednesday, March 19, 2025, 17:07  Turbopumps on

Thursday, March 20, 2025, 10:00 :  Water cooling on. Increasing TGHT TBHT to 580 230 at 1A/30s.

Thursday, March 20, 2025, 12:00 :  at ~200A 200A, increased heating rate to 1A/10s

Thursday, March 20, 2025, 13:45 increasing HV BIAS/EE/EZL to 30/2.5/13 kV 

Thursday, March 20, 2025, 14:32   at HV now, stable. Beginning mass scan.    

 Thursday, March 20, 2025, 15:15  magnet positioned at mass 115

Friday, March 21, 2025, 11:08   Temperature testing

Current ___ Temperature

0A     184.5

1A     187.2

2A     208.3

3A     268.7

4A     374.1

5A     419.2

6A     495.8

 Friday, March 21, 2025, 12:09   cooling TGHT TBHT at 1.7A/10s to make Faraday cage accessible for controls work

                           decreased cooling rate to 1A/20s for final 100A. at 14:00, test stand was opened for controls work.

Wednesday, March 26, 2025, 10:08   Turbo pumps switched off for venting and changing the mass marker reservoir

Wednesday, March 26, 2025, 18:01  Chamber opened, MMR replaced with MMR3, roughed, now turbopumps on.

Thursday, March 27, 2025, 12:38 TGHT TBHT brought up to 580 230 at 1A/30s for 100A and then 1.7A/10s for the rest. now increasing  HV BIAS/EE/EZL to 30/2.5/13 kV 

 Thursday, March 27, 2025, 13:58    at high voltage, beginning mass scan.   (h)

Thursday, March 27, 2025, 14:37    Magnet at 115, measuring beam output with increases of MM current

current ___ FC6 output

0A    8.2e-11

1A    8.2e-11

2A    8.6e-11

3A    1e-10

4A    1.88e-10

5A    5e-10

6A    8.7e-10

Thursday, March 27, 2025, 15:26 beginning mass scan at MM 6A. --- MM Current failed at the beginning of the mass scan. data still collected - indium peak lower than expected due to gradual cooling. mass scan saved (i) 2025-03-27_15-32 mm i 6A-0A.txt

Thursday, March 27, 2025, 15:33   cooled 0A mass scan beginning - (j) 2025-03-27_16-13 mm j 0A.txt

Thursday, March 27, 2025, 16:32  decreasing HV to 0

Friday, March 28, 2025, 09:13  spinning down turbo pumps to vent system. Must *begin* to repair/replace the multipin connection. - will affix twisted pair to two appropriate channels for IGLIS AC

Tuesday, April 08, 2025, 12:26   spinning down turbo pumps 

 Wednesday, April 09, 2025, 15:36  Twisted pair wire shielded, routed and crimped for iglis and high(er) current purposes. multipin channels 8 and 9.

                 roughing.

 Wednesday, April 09, 2025, 16:26   turbo pumps on

Thursday, April 10, 2025, 09:43    beginning heating - TGHT TBHT to 580 230 at 1A/30s

Thursday, April 10, 2025, 10:41     at 100A100A. increasing ramp rate to 1.7A/30s

Thursday, April 10, 2025, 11:39 increasing HV BIAS/EE/EZL to 30/2.5/13 kV 

 Thursday, April 10, 2025, 14:49   mass scan at 8A. Frequent sparking, ~1/min but doesn't appear to be affecting anything. no affect on optics or power supplies.  appears to be inside TS chamber as well.   mass scan saved (l 8A) 2025-04-10_15-04 mm l 8A.txt

Thursday, April 10, 2025, 14:50   MMR current decreased to 6A. waiting to cool to begin mass scan. sparks have stopped .

Thursday, April 10, 2025, 15:08  beginning mass scan.  (m 6A)  saved. 2025-04-10_15-34 mm m 8A.txt

Thursday, April 10, 2025, 15:34  MMR current 0A. repeat mass scan after cooled. (n 0A) saved.  2025-04-10_16-10 mm n 0A.txt

Thursday, April 10, 2025, 16:02 voltages to 0 for temperature testing

Current ___ Temperature

0A    205     

1A     205.5 

2A     227    

3A     268    

4A     327    

5A     391    

6A     462      

7A     546

8A      645.6

Thursday, April 10, 2025, 16:51    cooling TGHT TBHT at 1A/30s

 Friday, April 11, 2025, 09:00  spinning down turbo pumps to vent chamber. must replace source cup (p2n style --> old style)

Friday, April 11, 2025, 09:56  opened VV1 to begin venting the chamber. 

Friday, April 11, 2025, 15:39    P2N source cup removed, old source cup installed for repeat test. roughing chamber now.

 Friday, April 11, 2025, 16:05   turbo pumps on

Monday, April 14, 2025, 09:43  Water cooling on. TGHT TBHT ramping up at 1A/30s to 580A/230A

Monday, April 14, 2025, 12:57 increasing HV BIAS/EE/EZL to 30/2.5/13 kV 

Monday, April 14, 2025, 16:53   This trip has caused some sort of communication issue with the TGHT, This caused TGHT to be 'stuck' at 580A. I had to eventually cut power to the supply and have power cycled it. have not been able to restore power to it remotely

Fixed TGHT. Was able reset it locally after opening the cage.

Tuesday, April 15, 2025, 08:06   Turbo pumps off to vent, remove target and examine. 

Tuesday, April 15, 2025, 08:43   VV1 open 

Tuesday, April 15, 2025, 11:22   Target opened, taken apart, examined. Appears that the MMR transfer line had become dislodged from the target block, preventing transfer. Fixed this, reassembled, put back in TS.

Tuesday, April 15, 2025, 11:23  roughing.

Tuesday, April 15, 2025, 12:00  turbo pumps on.

Tuesday, April 15, 2025, 13:23  water cooling on. no effect on vacuum

Wednesday, April 16, 2025, 09:37 ramping TGHT TBHT 

Wednesday, April 16, 2025, 12:46  increasing HV BIAS/EE/EZL to 30/2.5/13 kV

Wednesday, April 16, 2025, 14:47 HV BIAS /EZL has been sparking occasionally, so increase has been slow

Wednesday, April 16, 2025, 15:05   mass scanning - 0A MMR. 

Wednesday, April 16, 2025, 15:07    spark external to TS (audible) tripped IG1 and shut down all power supplies. error thrown by TGHT as before.. cannot reset remotely. must discuss this error with controls.

Wednesday, April 16, 2025, 15:17  reset all and ramped up quick. running mass scan. 0A MMR  (q 0A) 2025-04-16_15-42 mm q 0A.txt

Wednesday, April 16, 2025, 15:43 heating MMR

current ___ FC6 output

0   4.4e-12

1   3e-12

2   4e-12

3   5e-12

4   6e-12

5   8e-12

6   4.8e-11

7   1.5e-10

8   9.1e-10

Wednesday, April 16, 2025, 16:31 mass scan 8A (r)   2025-04-16_16-31 mm r 8A.txt

Wednesday, April 16, 2025, 16:32 dropping HV to check temperatures

Current ___ temperature   (note. takes ~ 6 min to cool from max to min)

0A   197

1A   206

2A   218

3A   220

4A   300

5A   395

6A   500

7A   608

8A   735

Wednesday, April 16, 2025, 17:01  cooling TGHT TBHT at 1A/10s

Thursday, April 17, 2025, 08:37  turbo pumps off, spinning down 

Thursday, April 17, 2025, 11:15  venting

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, April 10, 2013:

The power supply is again operational. See e-fault entry above for details.

He & Ar calibrated leak bottles in.

Tuesday, October 13, 2020, 12:33: Roughing.

Tuesday, October 13, 2020, 13:17: TP1B on.

Tuesday, October 13, 2020, 14:19: TP1A on. 

Tuesday, October 13, 2020, 15:44: Waterlines opened. Vacuum @ 9.58e-06T & dropping. Power on.

Tuesday, October 13, 2020, 15:49: Valve to Mini-pump was open & the pump happened to already be switched on.

Tuesday, October 13, 2020, 15:50: Open SV3 & SV4.

Tuesday, October 13, 2020, 15:55: Close mini-pump & switch off. SV3 & SV4. Briefly open/close SV5. Continue until vacuum stabilizes.

Tuesday, October 13, 2020, 15:59: SV5 open. Alt SV3 & SV4 w/ SV5 until stable.

Tuesday, October 13, 2020, 16:04: Gas lines SV3, SV4, SV5 open. Vacuum @ 9.96e-06T & dropping.

Tuesday, October 13, 2020, 22:30: PS on. Vacuum @ 2.13e-06T. Auto-ramping TGHT / TBHT to 300 / 150 A @ 1 A per min.  

Tuesday, October 13, 2020, 22:33: Anode* Short? Halt auto-ramping.

Tuesday, October 13, 2020, 22:35: Auto-ramping TGHT / TBHT to 100 / 50 A @ 1 A per min. Coil @ 10 A.

Wednesday, October 14, 2020, 05:19: Auto-ramping TGHT / TBHT to 300 / 150 A @ 1 A per min.  

Wednesday, October 14, 2020, 07:14: BIAS / EE / EZL to 20 / -1.5 / 10 kV. IV4 opened.

Wednesday, October 14, 2020, 10:30: Auto-ramping TGHT to 350 A @ 2 A per min.

Wednesday, October 14, 2020, 11:11: BIAS / EE / EZL to 30 / -1.5 / 13 kV. 

Wednesday, October 14, 2020, 11:12: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. 

Thursday, October 15, 2020, 14:13: MB1 connected.

Epics = Readback

10 A = 11.6 A

0.394 V = 0.39 V

Calibration required, but it's running.

Thursday, October 15, 2020, 14:33: Auto-Cooling. Tap down HV. 

Thursday, October 15, 2020, 14:36: Gas lines closed. 

Friday, October 16, 2020, 07:55: Power / sources off. IG1 off. Turbo pumps off.

Friday, October 16, 2020, 07:56: HS Waterlines purged.

Friday, October 16, 2020, 10:07: Venting.

Possible controls problem. Breaker 18 found latched. Can not be re-energized. Burnt smell in PLC / HV area. e-faut 7561

Thursday, August 21, 2014: Dave Morris had a look and was able to isolate the problem to be with one of the low voltage power supplies in the PLC panel.

Friday, August 22, 2014: New 12V and 24V power supplies installed. PLC cabinet vacuumed. A new 24V fan with filter will also be installed.

Tuesday, August 26, 2014: Power restored to PLC cabinet. System is operational again.

 A chip of insulator material was detected below the lower target insulator stand-off (attachment - left picture). The chip may come from the tube heater insulator above (attachment - right picture). The chip will be further investigated when the target is removed.

Anders Mjos wrote:

A chip of insulator material was detected below the lower target insulator stand-off (attachment - left picture). The chip may come from the tube heater insulator above (attachment - right picture). The chip will be further investigated when the target is removed.

 The chip came from the lower insulator stand-off on the target assembly (see attachment). After investigating the chipped insulator, it was decided (Pierre, Friedhelm, Anders) not to replace it - as the risk involved may be less than the risk involved in replacing.

Tuesday, March 11, 2014, 09:03: Venting to investigate

A water to vacuum leak has been found on FS#3. The leak is not detected on the leak detector, but can be seen as an increase in vacuum and on partial water pressure on the RGA

Wednesday, April 12, 2017, 17:11: The leak is on circuit EG (Coil +). Confirmed with water pressure

Wednesday, April 12, 2017, 17:21: RGA off. Turbos stopped.

Wednesday, April 19, 2017, 13:00: Leak detector hooked up to TS. (Check Turbo)

Wednesday, April 19, 2017, 14:00: He to FS#3.

Wednesday, April 19, 2017, 14:31: Minimal response on leak detector. No response on RGA.

Wednesday, April 19, 2017, 14:36: Manual valve closed. Leak detector off. RGA off.

Wednesday, April 19, 2017, 14:37: FS#3 purged.

Wednesday, April 19, 2017, 14:39: Ion gauge off. Turbos off.

Wednesday, April 19, 2017, 14:44: Leak detector disconnected.

Thursday, April 20, 2017, 07:35: Venting

Thursday, April 20, 2017, 09:10: TRI-COIL CTL-FEBIAD removed.

Thursday, April 20, 2017, 09:23: Water lines (E) (G) removed w/ block. 

Thursday, April 20, 2017, 09:30: Roughing.

Thursday, April 20, 2017, 10:04: Turbos on.

Thursday, April 20, 2017, 13:15: Leak detector attached & turned on.

Thursday, April 20, 2017, 13:25: Water lines FS#5 opened to create loop. Pressurized @ 30 PSI.

Thursday, April 20, 2017, 13:45: RGA on.

Thursday, April 20, 2017, 13:58: All lines opened, purged, and re-pressurized @ 30 PSI with He.

Thursday, April 20, 2017, 14:15: Minimal response on Leak detector. No response on RGA.

Friday, April 21, 2017, 07:26: Vacuum @ 4.87E-07T. No He response on RGA. Lines still pressurized @ 30 PSI of Helium.

Friday, April 21, 2017, 10:19: Vacuum level close, but not optimal after 24 hrs. 2e-07T range is optimal.

Friday, April 21, 2017, 10:22: Adjustment of Turbo (TSG:TP1B) flanges. Stud Flange to Chamber (loose nuts found). brief vacuum spike noted.

Friday, April 21, 2017, 10:27: Turbo pump flange to Stud Flange tightened. No change on vacuum.

Friday, April 21, 2017, 10:41: Test Stand Exhaust cleaned. Clog noticed. Monitor Vacuum

Monday, April 24, 2017, 10:24: Three leaks found on FS#3. Two on the soldered ends of the VCRS (Mid-line) and one on the block. Requires repair/replacement.

Tuesday, May 02, 2017, 08:32 : RGA off.

Tuesday, May 02, 2017, 08:33: Ion gauge & Turbos off.

Tuesday, May 02, 2017, 12:55: Venting

Largest response on the bottom of the insulator.

Thursday, December 18, 2014, 16:39: Closing pumping valves. Will allow system to leak up over night

Friday, December 19, 2014, 08:19: Venting

Friday, December 19, 2014, 11:55: F/T and insulator removed. Lid not yet installed. Spark marks found on the insulator (see attached photo).

Installed blank off on F/T Q. New o-ring (1-1/02235) and screws 10-24x0.50 (1-2/02526). F/T insulator reference ITA0439

Monday, December 22, 2014, 09:54: Roughing

Monday, December 22, 2014, 10:25 : 0.5 T at CG1

Monday, December 22, 2014, 11:00: No leak detected at 0.2 T

Monday, December 22, 2014, 11:01: Starting turbos

Monday, December 22, 2014, 11:02: Opened water flow on GE (and TP1B)

Monday, December 22, 2014, 11:03: Some noise from TP1B around 12 kRPM

Monday, December 22, 2014, 11:07: TP1B at speed

Monday, December 22, 2014, 11:10: TP1A timed out restarted. Bypass BV1A required.

Monday, December 22, 2014, 11:11: Turbos at speed.

Monday, December 22, 2014, 11:11: Vacuum at 2.6 E-5 T

Tuesday, December 23, 2014, 08:27 : Vacuum at 1.8E-6 T

Tuesday, December 23, 2014, 08:51: Opened water. Vacuum stable at 1.7E-6 T

Tuesday, December 23, 2014, 09:05: No leaks found with leak detector. Base leak rate <7.7E-8 mbar-l / s

Monday, January 05, 2015, 09:28: Repeated leak check. Both doors. Sprayed He through service cap cover. No response above 2.4E-8 mbar-l/s base leak rate.

https://elog.triumf.ca/TIS/Test-Stand/919

Vacuum Group LD#1

(A) Top feed through fittings upgraded

Thursday, April 21, 2022, 13:11: Pumping directly on FS#4-Line A (TBHT). Leak rate @ 0.0E-07 atm-cc/sec.

Thursday, April 21, 2022, 13:13: Sprayed He on Block (A) & the TBHT solder joints. No signal change.

(B) Top feed through fittings upgraded.

Thursday, April 21, 2022, 13:39: Pumping directly on FS#4-Line B (TBHT). Leak rate @ 0.0E-07 atm-cc/sec.

Thursday, April 21, 2022, 13:42: Sprayed He on Block (A) & the TBHT solder joints. Dips up to a Leak rate @ 0.1E-07 atm-cc/sec & back to 0.0.

Disconnect LD. Will need to pressurize w/ He.

Thursday, April 21, 2022, 14:09: Pressurize FS#4-Line B (TBHT) to 50 PSI.

Thursday, April 21, 2022, 14:20: False positives. Saturated the area w/ He. LD off & lines depressurized.

Tuesday, April 26, 2022, 11:14: Leak rate @ 0.0E-07 atm-cc/sec. (No He)

Tuesday, April 26, 2022, 11:15: Pressurize FS#4-Line B (TBHT) to 120 PSI.

Tuesday, April 26, 2022, 11:20: Checked TBHT solder joints & water block (B). Leak rate @ 0.0E-07 atm-cc/sec. Disconnect, purge, & swap fittings to (A)

Tuesday, April 26, 2022, 11:31: Pressurize FS#4-Line A (TBHT) to 120 PSI. Leak rate @ 0.0E-07 atm-cc/sec

Tuesday, April 26, 2022, 11:38: Checked TBHT solder joints & water block (A). Leak rate @ 0.4E-07 atm-cc/sec on the water block.  Disconnect, purge.

Wednesday, April 27, 2022, 10:38: Indium gasket installed on FS#4-Line A water block.

Wednesday, April 27, 2022, 10:43: Leak rate @ 0.0E-07 atm-cc/sec. (No He)

Wednesday, April 27, 2022, 10:44: Spiked as soon as He was applied.

Wednesday, April 27, 2022, 11:14: Line A removed.

Wednesday, April 27, 2022, 11:40: Line A reinstalled after inspection w/ new Indium gasket fitted. Gasket only. No C-Seal.

Wednesday, April 27, 2022, 11:44: Leak rate @ 0.0E-07 atm-cc/sec. (No He)

Wednesday, April 27, 2022, 11:46: Spiked as soon as He was applied.

Wednesday, April 27, 2022, 11:53: New Indium gasket fitted. Gasket only. No C-Seal.

Leak rate @ 0.0E-07 atm-cc/sec. (No He)

Wednesday, April 27, 2022, 11:54: Pressurize to 30 PSI. Leak rate @ 0.0E-07 atm-cc/sec

Wednesday, April 27, 2022, 11:57: Pressurize to 50 PSI. Leak rate gradually increased to the (X)E-05 atm-cc/sec range.

Multiple leak checks & gasket attempts Thursday.

Monday, May 02, 2022, 09:45: Indium gasket installed w/ 90-100 inch pounds of torque. Used a heat gun up to 90. Allowed to cool, then given one more tightening.

Monday, May 02, 2022, 09:57: Leak rate @ 0.0E-08 atm-cc/sec. (No He) using the sniffer.

Monday, May 02, 2022, 09:59: Initial leak rate @ 0.0E-08 atm-cc/sec. (w/ 120 PSI He)

Monday, May 02, 2022, 10:11: Leak rate @ 0.0E-08 atm-cc/sec. (w/ 120 PSI He).

Monday, May 02, 2022, 10:20: BV1B open. Rouging

Monday, May 02, 2022, 10:22: BV1A open.

Monday, May 02, 2022, 11:51: TP1B on.

Monday, May 02, 2022, 11:57: TP1A on.

Monday, May 02, 2022, 12:05: IG1 on.

Monday, May 02, 2022, 12:10: Vacuum @ 4.19e-05T & dropping.

Monday, May 02, 2022, 13:59: Vacuum @ 1.33e-05T

Monday, May 02, 2022, 14:04: FS#4 open. Vacuum @ 1.33e-05T. Stable. No immediate Spike.

Monday, May 02, 2022, 14:05: FS#2 open. Vacuum @ 1.33e-05T.

Monday, May 02, 2022, 14:06: FS#3 open. Vacuum @ 1.33e-05T.

Monday, May 02, 2022, 14:09: FS#5 open. Vacuum @ 1.33e-05T. Stable.

Due to high vacuum a leak check will be done on the system.

Thursday, July 19, 2012, 09:00 : Base leak rate 4E-9 atm-cc/sec

Thursday, July 19, 2012, 09:07: Leak detected on side door. Mid 1E-8 range.

Thursday, July 19, 2012, 09:08: Leak detected on front door. Mid 1E-6 range. Main leak left or bottom side.

Thursday, July 19, 2012, 09:20: Leak on side door could not be reproduced. Previous response possibly due to  "cross-talk" with front door.

Vacuum side

Tuesday, February 16, 2021, 13:42: The gas lines inside have been check. The inlet of the calibrated leak was not tighten properly and hence the large leak observed.  FIXED.

Tuesday, February 16, 2021, 13:42: The only leak remaining INSIDE the vacuum is the one on the FT side which for 200kPa is around 7e-6 atm cc /s. At this pressure, the undesired leak  is leak rate is around 1 %  of the one getting into the source.

Atmosphere side

Tuesday, February 16, 2021, 14:49: Some minor leaks in connection points around  1e-6 atm cc/s. Not much I can do without changing all connection to glands with metal gaskets.

Tuesday, February 16, 2021, 14:50: SV5 was leak check on its own, the gas goes through quite noticeable, no need to sniff with leak detector. SV1 leak checked and it works.

Tuesday, February 16, 2021, 14:52: Valves swapped, labels changed.

Tuesday, February 16, 2021, 15:17: Roughing.

Tuesday, February 16, 2021, 15:53: Turbos on.

Tuesday, February 16, 2021, 15:59: IG1 on

Tuesday, February 16, 2021, 16:29: IG1 @ 5.3e-5 and dropping. Already better than Friday/Saturday.

Tuesday, February 16, 2021, 16:53: IG1 @ 2.9e-5 T.

Wednesday, February 17, 2021, 16:53: IG1 @ 1.5e-6 T.

Wednesday, February 17, 2021, 16:53:  The Neon bottle seems to be empty. The leak on the lines were not as bad to have this happened. I suspect when squeezing the bottle I rotated the gauge enough to cause a leak there.

Wednesday, February 17, 2021, 17:00: Using a full nitrogen bottle, I confirmed that rotating the two-stage regulator causes a leak.

Wednesday, February 17, 2021, 18:00: Things look OK now. Water open. No response on vacuum. Will put power.

Wednesday, February 17, 2021, 20:00: Some items were timed out. Tried to recycle the PLC now all the items are red. Check tomorrow

Thursday, July 19, 2012, 12:57: Doors leak checked. No response. Base rate 1.6E-8 atm-cc/sec. TP pressuer 0.0E-4 Torr . TSGIG1 4.2E-6 Torr. TSG:CG1A 0.014 Torr.

Vacuum at 4.4E-7T

Base leak rate 2 - 3 E-9 mbar-l/sec

No response above background.

Base leak rate 6 - 7 E-9 mbar-l/s

A leak was found around the 9-pin feed through.