 Friday, April 21, 2017, 08:19, David Wang, Conditioning Station, Repair, , , Low frequency on TCS TGHT flow sensor. 
|
Anders and I found a low frequency issue(13hz only) on TCS TGHT flow sensor when doing TM4 conditioning. By trouble shooting, We found the module water
lines are good. the restriction cause this problem in on TCS supply or return water lines to TGHT. I switched TGHT lines with MSP water lines. The
wheel frequency on TGHT is 67.0hz which is pretty high. Now, MSP is using the original TGHT water line(flow sensor frequency 13hz). Flow sensors and |
|
Monday, October 03, 2022, 14:58, Matthew Gareau, North Hot-Cell, Repair, TM4, SiC#43 and C#4, Loose multipin guide pin
|
Today while I was removing the SiC#43 it was noticed that the multipin guide pin was loose.
This made it difficult to remove the target, and the multipin shoulder bolts removal was required.
With the loose pin it was not possible to attach the multipin for the target C#4. |
|
Thursday, May 31, 2018, 14:22, chad fisher, South Hot-Cell, Repair, TM4, , Loop and beam shield
|
| Tray with loop and beam shield has been inserted into the hot cell to be installed on TM4 . |
|
Thursday, October 17, 2019, 11:49, Travis Cave, Spent Target Vault, Standard Operation, , SiC#31,32 and UC#19,20,21, Loading F-308
|
| The targets in the mini storage have been loaded into the F-308. |
|
Monday, November 20, 2023, 12:28, Eric Lahe, South Hot-Cell, Maintenance, , , Light Bulb Replacement - South Hot Cell roof lights
|
3 light bulbs replaced in the ISAC South Hot Cell - North West light, South west light, and South East light bulbs. Northeast light currently still
working.
|
|
Tuesday, June 23, 2015, 10:55, chad fisher, South Hot-Cell, Repair, , , Left Manipulator Repair
|
| The master wrist/tong cable has been replaced on the left manipulator. Everything appears to function well so far. |
|
Tuesday, November 24, 2015, 14:02, chad fisher, South Hot-Cell, Repair, , , Left Manip repair
|
electronics package on left manip died completely yesterday (it has been going for a while).
Disconnected entire package and replaced with package from "spare" manipulator.
everything is back up and working. |
|
Wednesday, May 10, 2017, 13:42, Anders Mjos, Conditioning Station, Repair, , , Leaky gauge at TCS:TS2 (e-fault: 9609)
|
| Neil Wong will fix this leak tomorrow Friday. See attached schematics for location. |
|
Thursday, October 26, 2017, 09:56, Anders Mjos, ITE, Repair, TM4, SiC#37, Leak on multi pin connector feedthrough
|
On maintenance day Tuesday, the roughing of the target station could not go below 1.5 Torr. A brief troubleshooting on Tuesday was unsuccessful in determining
the cause. Leak checking continued on Wednesday by David and Anders. A leak was finally found on the multi pin connector feedthrough due to the seal between
the connector and flange on top of the nylon insulator. Upon re-tightening the connector, the leak could be stopped and the module pumped down to allow |
|
Thursday, August 15, 2013, 16:35, Anders Mjos, ITE, Repair, TM4, SiC#29, Leak found on Coil 1
|
By pressurizing the water lines with 70 psi helium David
and I detected a major leak on the Coil 1 circuit. The response maxed out on the leak rate on the leak detector and we could also see a pressure increase |
|
Friday, October 28, 2011, 14:42, Bevan Moss, South Hot-Cell, Maintenance, TM4, , Leak check on service cap feed through
|
After Chad and Davids leak check results from the containment box it was decided to perform a leak check on the feed through stem in the service
cap. This is a known point of failure on TM1 and the same design flaw is likely in TM4. Once the service cap was open a visual inspection was performed
and some oxidization of the copper line on the tube heater (+) circuit was observed (see attached pictures). The leak check was performed with the cart |
|
Thursday, March 30, 2017, 11:21, David Wang, Conditioning Station, Repair, TM4, , Leak check on TM4 Ta(-) water lines in service cap
|
Leak check on TM4 Ta(-) water lines in service cap is done. LD base LR after 50minutes pumping down:0.0xE-9 atm.cc/sec. base pressure: 0.0XE-4 torr.
I sprayed lots helium on welding stems on Ta(-) line in service cap including stems in blue nylon insulator and stems to service tray. no any response
has been foun on LD. The Ta(-) line in service cap is leak free. |
|
Thursday, October 19, 2017, 10:11, David Wang, Conditioning Station, Standard Operation, TM4, , Leak check on TM4 HS line at SHC and TCS.
|
Chad and I leak checked TM4 HS line after new target is installed yesterday. No leak has been found. Also, I helium pressurized the HS line at TCS this
morning. TM4 HS line is good on this test. The TM4 gas line configuration on TM4 top is leak check as well. No problem. |
|
Wednesday, May 17, 2017, 08:31, David Wang, South Hot-Cell, Standard Operation, TM4, , Leak check on TM4 HS line at SHC
|
Chad and I finished leak check on HS line with UCx target installed on it. Base Leak rate:0.0X 10^-9 atm.cc/sec, Base pressure 0.0X 10 ^-4 torr.
Sprayed helium to VCR joints. No leak has been found . The line will be pressurized with helium at TCS.
Helium pressure test on TM4 HS line is done at TCS. BLR 0.0XE-9 atm.cc/sec. 70psi helium , 2 minutes. No response. The line is leak free. |
|
Tuesday, June 27, 2017, 10:26, David Wang, South Hot-Cell, Standard Operation, TM4, Ta#52, Leak check on TM4 HS line at SHC
|
LD base LR:0.0Xe-9 atm.cc/sec. No leak has been found during the check. The HS line will be helium pressurized at TCS this week.
Helium pressurized the HS line at TCS. 70 psi 2 minutes, 0.0 x E-9 atm.cc/sec. No leak. |
|
Friday, October 25, 2013, 06:58, David Wang, South Hot-Cell, Standard Operation, TM4, , Leak check on TM4 target heat shield
|
Maico and I leak checked HS circuit after Chad installed the target. The circuit was a little bit difficult o pump down because of residue water moister
inside. But once the moisture was pumped out, the pumping down was smooth and fast. The base leak rate 0.0xE-9 atm.cc/sec, base pressure 0.0xE-4 torr.
Maico checked helium flow before the leak test. Then,He sprayed helium to all 3 VCR fiitings on target with 2 seconds on each one, He also flushed 10 seconds |
|
Thursday, December 05, 2013, 14:55, David Wang, South Hot-Cell, Standard Operation, TM4, , Leak check on TM4 target heat shield
|
Chad and I leak checked TM4 heat shied water circuit at SHC. The pumping down was very good.Base leak rate 0.0xe-9 atm.cc/sec. BP 0.0xe-4torr. Sprayed
helum twice on both VCR fittings.There is no response on leak detector. The circuit is leak tight. |
|
Thursday, May 02, 2024, 15:23, David Wang, South Hot-Cell, Development, TM3, , Leak check on TM3 new containment box window line VCR fittings.
|
After new containment box installation on TM3, Chad and I did a helium spray leak check on two VCR fittings on front side water lines. they are leak
free.
Helium pressurize window water line to 70 psi for 3minutes. No response on leak detector which is 0.0xe-9 atm.cc/sec. |
|
Thursday, July 24, 2014, 18:21, Grant Minor, South Hot-Cell, Repair, TM2, No target / no source tray, Leak check on TM2 ionizer tube cooling lines C and D - module side
|
Target Ionizer tube cooling lines "C" and "D" in Target Module 2 were both leak checked at the Hot Cell. The lines were both
blanked-off.
Bill Paley was present with David Wang in the Target Hall, operating the leak detector. Grant Minor and Anders Mjos were present with Chad |
|
Thursday, August 02, 2018, 07:57, David Wang, Conditioning Station, Standard Operation, , , Leak check on TM2 UCx #23 @ TCS and SHC.
|
I did a helium pressure test on TM2 HS line at TCS. At 70psi helium, the leak rate is 2.5 xE-7 atm.cc/sec. I think this is the number that close to result
before which is 1.7xE-9 atm.cc/sec. WE know there is a small leak on this water block seal. Chad and I did helium spray check yesterday at
SHC. It was good at bottom scale. No much worry on this low E-7 range leak. |
|