 Friday, June 19, 2015, 11:43, David Wang, ITW, Repair, TM1, , ITW external water leak on dump circuit 6x
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There was an external water leak in ITW during the last beam running time. The leak started after the shielding blocks transfer(May 22). It cause a constantly
water level drop on S-tank(0.5 "/day average). Today , after the blocks are moved , the leak source has been found. Water seeped through a fitting
on ITW dump circuit pressure gauge. The leak water slowly flow around the TM1 on the tank flange. most of them are dried out, but left some stain on dump |
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Friday, June 19, 2015, 09:37, Isaac Earle, South Hot-Cell, Repair, TM2, , TM2 Source Tray Installation - June 18, 2015
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The following work was done on June 18 2015:
- Finished cleaning and polishing all water blocks on module side (white felt with isopropyl, then buffing material with isopropyl, then canned
air). Heat shield waterblock re-done because water marks visible (white scotchbrite, white felt w/ isopropyl, buffing material w/ isopropyl, then |
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Thursday, June 18, 2015, 08:03, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Optics Tray Transfer
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| The TM2 optics tray has been transferred from the source tray to the transfer fixture in preparation for installation of the source tray into the module. |
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Wednesday, June 17, 2015, 14:21, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Waterblock Clean Polish
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Fiberglass that fell out yesterday was put back in place (as well as possible).
Cleaning took place this morning with excellent results. Cleaning was performed with red scotch brite on the cleaning tool, air pressure at 40
psi while running, with one 60 second cycle. Three blocks (EE, HS and Window) needed a second pass to remove the indium. |
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Tuesday, June 16, 2015, 14:28, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Source Tray Installation/Water Block Sealing Surface Clean
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Today cleaning and polishing pads were inserted into the hot cell.
Module side waterblock jig installation was attempted however one of the locking tabs/latches (ITA2405?) came undone/fell off. Luckily, I had old,
obsolete jigs in the hot cell so I was able to remove parts I needed from an old one and rebuild the current one. |
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Monday, June 15, 2015, 14:14, David Wang, South Hot-Cell, Standard Operation, , , Target Hall Scheduled Activities April 07 - July 21 2015
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Weekly update Target Hall schedule 2015-06-15. See attachment 1,2
2015-06-19, Update the schedule on the end of the week. See attachment 3,4 |
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Monday, June 15, 2015, 10:16, chad fisher, South Hot-Cell, Repair, TM2, , C.B. off
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As per scedule TM2 containment box has been removed.
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Monday, June 15, 2015, 09:42, Travis Cave, South Hot-Cell, Standard Operation, TM2, no target, Module moved
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| TM#2 is now in the south hot cell. |
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Friday, June 12, 2015, 13:27, David Wang, South Hot-Cell, Standard Operation, , , TM2 new source tray has been remotely transferred from TH into SHC successfully.
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TM2 new source tray has been remotely transferred into SHC successfully. The transfer table has been moved back to TH within 1 hour. I swiped the
table and found about 150counts contamination. It is much better comparing to last time using since we removed this table out of SHC as quick as we can.
The table will be cleaned with windex after Target Hall is surveyed. |
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Friday, June 12, 2015, 07:49, chad fisher, Assembly/Bench Test, Repair, TM2, , New TM2 Source Tray Ground to HV Measurements
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After bending and leak checking the new measurements from ground to HV on the TM2 source tray are:
Ground to C1+ 0.6645"
ground to heat shield 0.506 |
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Thursday, June 11, 2015, 13:43, Dan McDonald, Assembly/Bench Test, Repair, TM2, , Leak check following tweaking of cooling line gaps
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Maico, Chad and I conducted a leak check on all affected lines following tweaking of cooling line gaps. All lines pumped down to a level of 10-9
torrliter/sec with no leaks detected with Helium. |
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Thursday, June 11, 2015, 13:11, chad fisher, Assembly/Bench Test, Repair, TM2, , Measurements beyween ground Plane and HV TM2 Source tary
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I've taken measurements between HV and ground circuit on TM2 source tray as instructed.
At their closest points:
Heat Sheild to Ground Electrode 0.445" |
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Wednesday, June 10, 2015, 16:49, Grant Minor, Assembly/Bench Test, Repair, TM2, , TM2 New Source Tray - *HOLD* on installation into Hot Cell until HV approval
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Don Jackson brought to my attention some potential HV minimum spark gap issues with the source tray cooling lines. It appears:
- The gap between the Ground Electrode cooling lines (ground) and Heat Shield cooling lines (HV) does not meet the spec of 0.668" MIN |
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Wednesday, June 10, 2015, 13:17, David Wang, ITE, Standard Operation, TM1, , Target Hall Scheduled Activities April 07 - July 26 2015
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| Weekly update the schedule after some jobs have been finished in this week. |
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Wednesday, June 10, 2015, 11:49, David Wang, ITE, Standard Operation, TM4, SiC #31, TM4 has been connected in ITE
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Dan and I connected TM4 in ITE. At this stage, water is supplied to TM4 only. We checked the TM4 water signals from electrical room.They are good. The
turbo-pumps will be started today once the roughing is done. |
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Wednesday, June 10, 2015, 10:02, Travis Cave, ITE, Standard Operation, TM4, SiC#31, Module moved
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| TM#4 has been moved from the conditioning station to the east target station. |
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Tuesday, June 09, 2015, 14:36, chad fisher, Assembly/Bench Test, Repair, TM2, , TM2 Source Tray Final Inspection
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Final inspection took place with Pierre, Grant, Friedhelm and Anders present.
Two action items were raised:
1) check routing of 9 pin connector line |
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Tuesday, June 09, 2015, 09:49, chad fisher, Assembly/Bench Test, Repair, TM2, , TM2 Source Tray Final Alignment Check
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Final alignment continued this morning.
Steerers have been aligned to 0.001 low, 0.000 left/right wrt master jig.
Optics tray required some adjustment as well and is now at: |
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Monday, June 08, 2015, 14:40, chad fisher, Assembly/Bench Test, Repair, TM2, , TM2 Source Tray Final Alignment Check
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Final Alignment checks of the TM2 source tray took place today.
Mater Jig: Front - 0,0 Back - 0 left, right, .005 low
Tray: Front .001 High, .001 right Back - .001 right, .008 low |
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Thursday, June 04, 2015, 08:27, chad fisher, Assembly/Bench Test, Repair, TM2, , TM2 Source Tray C-seal removal and inspection
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Source tray for TM2 has been moved to the alignment area by Dan and co.
This morning Dan removed the c-seals used during the test and he and I inspected the sealing surfaces to determine if they need to be cleaned...they
do..trace indium was present on all blocks. |
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