Monday, April 20, 2015, 09:35: Started cooling water circulation
HV cover did not fit due to interference with the air sampling valve. Target Hall will have to be locked out for conditioning to proceed. WP I2015-04-20-2
Monday, April 20, 2015, 10:09: Started chiller staging
Target hall and HV enclosure has been locked out.
Monday, April 20, 2015, 13:45: 22 kV, 0.04 mA BIAS
Monday, April 20, 2015, 14:58: No sparks observed. BIAS off
Tuesday, April 21, 2015, 08:26: Starting heater auto-ramp to 500 / 230 A at 2 A/min
Tuesday, April 21, 2015, 08:32: BIAS/EE to 20 / 1.5 kV
Tuesday, April 21, 2015, 12:59: TGHT / TBHT at 327 / 230 A. Pausing the auto-ramping. Bill will be monitoring TCS while I am off-site.
Tuesday, April 21, 2015, 15:56: Continue auto-ramping
Tuesday, April 21, 2015, 17:34: Auto-ramping finished. TGHT / TBHT at 500 / 230 A
Wednesday, April 22, 2015, 08:43: Vacuum tripped heaters and BIAS over night. Switching off to do a leak check on the service cap.
Wednesday, April 22, 2015, 09:03: Stopping turbo and roughing pump for David. David is preparing a leak check.
Wednesday, April 22, 2015, 09:06: Started roughing pump.
Wednesday, April 22, 2015, 09:22: Roughing pump trips off after a few minutes of pumping.
Wednesday, April 22, 2015, 13:11: Stopped water flow.
Wednesday, April 22, 2015, 16:07: Starting turbos
Wednesday, April 22, 2015, 16:15: All turbos at speed.
David found a leak on the window line this morning.
https://elog.triumf.ca/TIS/RH-ISAC/896
Thursday, April 23, 2015, 11:12 : Starting cooling pack
Good vacuum limit on IG1 changed from 7E-5 T to 1E-5 T
Thursday, April 23, 2015, 12:53 : Starting heater auto-ramp to 500 / 230 A at 2 A/min. Bad vacuum limit reduced to 8E-6 T
Thursday, April 23, 2015, 13:03 : BIAS/EE to 15/ 1.5 kV
Thursday, April 23, 2015, 13:28 : BIAS/EE to 20/ 1.5 kV. No sparking observed
Thursday, April 23, 2015, 17:23: Auto-ramping finished. TGHT / TBHT at 500 / 230 A
Thursday, April 23, 2015, 17:51: Fault on cooling circuit (Fault 2).. Manually starting CP1
Thursday, April 23, 2015, 18:01: Cycled power of chiller unit. System recovered. Enabled staging.
Thursday, April 23, 2015, 18:42 : One minor spark observed. Starting cool down at 12 and 9 A/min
Thursday, April 23, 2015, 19:51 : Heaters and BIAS off
Friday, April 24, 2015, 08:21 : Water cooling off |
November 27th, 2024 - Aaron Tam with Farran & David
Parasitic Assembly Leak Check (Aaron, Farran, David)
-Note that the furthest upstream (right of the target) parasitic top cap screws had been loosened and retightened in error when attempting to remove it off TiC#9
-This puts this data point into question
-Leak check starting from upstream to down stream
-First parasitic had no leak
-Second parasitic had some leak
-Third parasitic was not pumping down at all
-First parasitic checked on test hose again with same success
Parasitic Dis-assembly (Aaron)
-First parasitic had good tension in all 3 screws
-second parasitic had 2 screws with a perceptible breaking-loose of the screws, but one was imperceptible
-Third parasitic had lower (than first parasitic), but okay tension in all 3 screws
In an attempt to move the PEEK seal into a safe spot with tweezers, this one was accidentally sprung across the hotcell in the direction of the tool port
A lengthy attempt to find it was conducted, but no PEEK seal was recovered
This may effect our ability to do work during hot cell entries coming up.
PEEK Seal extraction (Aaron, Farran)
-A labeled bag was inserted into the hotcell via the tool port and onto an existing tray in the Hotcell
-PEEK seal placed inside bag, placed back on tray, and moved back to the tool port for extraction
-With tool port open, the draft was able to push the bag across the lift table. Changing the cross section exposed to the draft works to keep the bag from moving
-Farran used picker to extract the bag into the tool port where he wiped and placed into separate bag.
-This process was repeated for the second PEEK seal
-Bags were wiped and swiped, put in another bag, swiped and brought over to Hot cell Service area Lab
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