 Wednesday, March 07, 2018, 10:18, David Wang, ITW, Standard Operation, , , Oil leak on target station vacuum primary back pump.
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I can not see oil in sight window of the primary pump during visual inspection. The aluminum tray underneath the pump is filled with oil. The performance
on this pump start to drop by watching ITH CG4 reading. A fault report with suggestion is issued to vacuum group. Everything on secondary pump looks
fine. |
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Wednesday, March 07, 2018, 10:36, David Wang, ITE/ITW Cooling, Development, , , HALCW resin can flow meter replacment
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HALCW resin can flow meter replacement is done. Less that 100 mL water was drained to a small tray during the job. RPG checked the water. Less than 20
counts. Water are dumped the high active sump. The HALCW MP1 is started. No leak on new gauges and fittings. Old gauge is labeled , bagged,
and stored in TH. |
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Thursday, March 08, 2018, 14:10, David Wang, ITW, Maintenance, , , Two small water leak has been found in ITW.
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Two small water leaks have been found on ITW High active water system. One is from an unused 1/4" copper valve stem. another is on supply 1.5"
supply line valve body top sealing. Both of them are seeping water from seal. 1/4" copper valve will be replaced with a new one. 1.5" supply
line valve will be replaced by an old valve with all new seals. I have all spare parts in hand. At present, water supply to ITW are stooped to |
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Thursday, April 05, 2018, 11:29, David Wang, ITW, Maintenance, , , ITH MP1 replacement
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ITH MP1 is replaced today with a new style pump.The new pump is 0.75 inch higher than old pump on inlet and exhaust so a new solid inlet adapter
(KF50-25) has to been used. For future secondary pump ITH MP1S replacement, we need a new adapter 0.75 inches shorter as well. The new pumps
is started . Everything works fine. Old pumps is drained , bagged, and stored in TH B2 level. All radioactive garbage produced during the job are bagged |
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Monday, April 09, 2018, 06:36, David Wang, ITW, Standard Operation, , , ITW Turbo -pumps switch off
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| I asked MCR to switch off ITW TP3,4 TP1s,2s this morning. |
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Tuesday, April 17, 2018, 11:05, David Wang, ITW, Repair, , , Disconnect ITW entrance module
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ITW entrance module has been disconnected. All connections are labelled before or during disconnection. The 24VDC electrical plug on ITW TP1S is
broken . It will be replaced with a new plug. The lift yoke is installed onto module without difficulty. |
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Thursday, April 19, 2018, 10:27, Travis Cave, ITW, Maintenance, , , Entrance module move
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| The west entrance module has been moved from the west target station to the silo. |
Friday, April 20, 2018, 15:33, Keith C Ng, ITW, Repair, , , ITW beam tube repair job 
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2A2 window has been removed from ITW and beamlines has removed the beamtube from the penetration. The penetration has been sealed with plastic sheeting
and duct tape to maintain the ventilation depression between the 2A tunnel and the Target Pit.
Window is currently stored in a lead flask in the target hall. Window fields are 26 mSv/h OC, 1.2 mSv/h at .5m. There is a 10 uSv/h field outside |
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Friday, April 27, 2018, 15:06, Keith C Ng, ITW, Repair, , , ITW beam tube repair 6x
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Vacuumed out remainder of debris from the wall penetration, removed cradle and checked condition. Down stream support bracket sees advanced stages of
material loss (OBO 20-30% loss). See attached photos.
RPG reports that the removed beam tube has 15k CPM on the interior of the beam tube. |
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Tuesday, May 01, 2018, 10:54, Keith C Ng, ITW, Repair, , , 2a2 window installation and beamtube repair
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Yesterday we installed the 2a2 window, the drive screw was torqued until 70
ft-lbs and we stopped, the yoke is not fully closed to its hard stop with roughly 7/8" to 3/4" still to go. Similar to identical conditions to
2a3 beamline window install, see https://elog.triumf.ca/TIS/RH-ISAC/647 for that install. Otherwise |
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Thursday, May 03, 2018, 13:26, Anders Mjos, South Hot-Cell, Repair, TM4, , EZL short troubleshooting
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Yesterday Aaron, Isaac and Anders inspected the EZL connection from the service chase to the optics tray using the goose neck camera in SHC. No issues
or shorts could be identified. Containment box was not removed.
Today David and Anders opened up two panels on the service cap and inspected the EZL connection. No issues or shorts could be identified. Photos |
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Friday, May 04, 2018, 11:21, David Wang, ITW, Repair, , , 2A2 winodw leak check in TH
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Anders and I leak checked new 2A2 window seal on ITW side. Leak detector was connected to ITW TP4. Base leak rate 0.0Xe-9 atm.cc/sec.
base pressure 0.0xe-4 torr. Sprayed 15-20 psi directly underneath 2A2 window by using exist 2a2 window leak check copper tube. The leak detector
got response in 5 seconds when helium was applied. the leak rate was 5xe-6 atm.cc/sec. Once the helium source was closed, the leak rate dropped quickly |
 Friday, May 04, 2018, 15:46, Anders Mjos, South Hot-Cell, Repair, TM4, , EZL short troubleshooting
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Anders Mjos wrote:
Yesterday Aaron, Isaac and Anders inspected the EZL connection from the service chase to the optics |
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Wednesday, May 09, 2018, 08:48, David Wang, ITW, Repair, , , 2A2 winodw leak check on ITW vacuum vessel.
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Leak detector is connected to ITW TP4. LD Base leak rate 0.0XE-09 atm.cc/sec. Helium line is connected to existing window leak check 1/8 " copper
tube. Applied 18psi helium for 1 minute. No response on LD. The window seal is good on ITW vacuum vessel. |
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Tuesday, May 15, 2018, 10:21, David Wang, Conditioning Station, Standard Operation, TM4, , Tm4 water circles helium pressur test result
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Helium pressure test on TM4 water lines is done this morning. 70 psi helim , 1 minutes time to each
circle. The result:
A(oven+): 0.00xE-9 atm.cc/sec |
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Thursday, May 17, 2018, 11:30, Anders Mjos, Conditioning Station, Maintenance, TM4, , HV test/conditioning of damaged source tray
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BIAS only. Water lines looped on top. Containment box off.
Thursday, May 17, 2018, 11:20: Vacuum 7.2E-7 Torr
Thursday, May 17, 2018, 11:30: 10 kV |
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Thursday, May 17, 2018, 13:17, Travis Cave, ITW, Standard Operation, , , Entrance module move
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| The west entrance module has been moved from the silo to the west target station. |
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Friday, May 18, 2018, 09:34, David Wang, Conditioning Station, Repair, TM4, , water leak on TM4 Tube heater - B line confirmed.
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At 8:50 AM today, I applied water to TM4 tube heater - (B) line at TCS. All high vacuum gauges got response on this action. Water is leaking through
B line on TM4.
It should be D line . David 2018-06-05 |
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Tuesday, May 22, 2018, 10:02, Anders Mjos, Conditioning Station, Repair, , , Water leak from TK1 over the weekend
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Link to e-log,
Link to efault
Tank level down from 76 to 55 in on TK1 |
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Wednesday, May 23, 2018, 10:40, chad fisher, South Hot-Cell, Repair, TM4, , Optics Tray Removal
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The optics tray has been removed from TM4.
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