 Tuesday, January 02, 2018, 15:17, Anders Mjos, Conditioning Station, Maintenance, , , Tested chiller
|
| Tested all 3 compressors and MP2 |
|
Thursday, January 04, 2018, 13:28, Anders Mjos, Conditioning Station, Maintenance, , , Troubleshooting IG1S
|
TCS:IG1S is reporting vacuum levels that seem to be too low (1E-10 to 1E-8 Torr). The gauge was connected to the controller for IG1, which showed the
same value. A degas was performed for ~5 min. |
|
Tuesday, January 16, 2018, 06:50, David Wang, ITE/ITW Cooling, Standard Operation, , , Field measurement on old resin tank in silo
|
The old resin tank has been stored in silo since last year March. Without crane the tank up, We use the pole monitor measured the field around
the bottom of the tank in silo. The average contact field on the bottom is about 4.0msv/hr. @0.5meter , the field is about 900usv/hr. It is still
too hot to remove it. |
|
Wednesday, January 17, 2018, 06:51, David Wang, Conditioning Station, Standard Operation, , , Stop TCS vacuum pumps
|
| I stopped TCS vacuum pumps for coming TM3 move. |
|
Wednesday, January 31, 2018, 10:32, David Wang, Crane, Standard Operation, , , Target Hall crane annual inspection.
|
Gordon crane technician Tom finished annual TH crane inspection today. Everything is normal. The main hoist brake gaps are checked on both side. They
are good still. |
|
Wednesday, February 28, 2018, 14:47, David Wang, ITE, Standard Operation, , , leak check ITE primary and secondary vacuum vessel.
|
2018-02-27: Anders and I finished leak check on ITE primary and second vacuum vessel seals. LD connected to ITE BV2 valves between. LD, Base Leak rate
1.2 xE-9atm.cc/sec, base pressure 0.0XE-4torr. There is a leak has been found on TM4 service cap KF25 blank off. The o-ring on the blank off will be changed
later. It is an easy fix . Other seals are good. The big T tank seal on secondary vessel is leak checked as well. It is still fine. Helium pressure |
|
Monday, March 05, 2018, 13:47, Travis Cave, Spent Target Vault, Repair, , Many, Spent Target Assay
|
The spent target assay was aborted today after the first target was finished due to the very old computer that controls the camera and the vault
door effectively died. The vault door had to be closed using the emergency door closing winch which worked so it passed that test. |
|
Wednesday, March 07, 2018, 10:18, David Wang, ITW, Standard Operation, , , Oil leak on target station vacuum primary back pump.
|
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. |
|
Wednesday, March 07, 2018, 10:36, David Wang, ITE/ITW Cooling, Development, , , HALCW resin can flow meter replacment
|
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. |
|
Thursday, March 08, 2018, 14:10, David Wang, ITW, Maintenance, , , Two small water leak has been found in ITW.
|
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 |
Friday, March 23, 2018, 09:34, Travis Cave, Spent Target Vault, Standard Operation, , Many, Spent Target Assay 
|
| All targets in the ISAC Spent Target Vault have been either assayed and had field measurement done on them or just measurement if to hot to assay. |
|
Thursday, April 05, 2018, 11:29, David Wang, ITW, Maintenance, , , ITH MP1 replacement
|
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 |
|
Monday, April 09, 2018, 06:36, David Wang, ITW, Standard Operation, , , ITW Turbo -pumps switch off
|
| I asked MCR to switch off ITW TP3,4 TP1s,2s this morning. |
|
Monday, April 16, 2018, 14:51, Travis Cave, Spent Target Vault, Standard Operation, , Ta#55, Spent Target Move
|
Ta#55 has been moved from the south hot cell to the spent target vault. It was 30.4mSv/hr upon removal from the hotcell, placed in pail #161 and
put in spot 7A of the vault. |
|
Tuesday, April 17, 2018, 11:05, David Wang, ITW, Repair, , , Disconnect ITW entrance module
|
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. |
|
Thursday, April 19, 2018, 10:27, Travis Cave, ITW, Maintenance, , , Entrance module move
|
| 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
|
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 |
|
Friday, April 27, 2018, 15:06, Keith C Ng, ITW, Repair, , , ITW beam tube repair 6x
|
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. |
|
Tuesday, May 01, 2018, 10:54, Keith C Ng, ITW, Repair, , , 2a2 window installation and beamtube repair
|
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 |
|
Friday, May 04, 2018, 11:21, David Wang, ITW, Repair, , , 2A2 winodw leak check in TH
|
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 |
|