 Thursday, April 23, 2015, 09:08, David Wang, Conditioning Station, Maintenance, TM1, UCx12, Huge Leak on TM1 contaiment box window. 
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There is a huge leak on TM1 containment box window. I did a 70 psi helium pressure test on all TM1 water circuits this morning. The LD base leak rate
was 0.0XE-9 atm.cc/sec. When applying the 70 psi helium to containment box window circuit, the leak rate on LD jumped to 1XE-4 atm.cc/sec in 5 seconds.I
released the helium source right away,t but the conditioning station is full of helium molecules already, and the leak rate on LD stays at 1xE-5 |
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Thursday, April 23, 2015, 12:56, Anders Mjos, Conditioning Station, Maintenance, TM1, , IG1 Good Vacuum limit changed
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Changed by Dave Morris.
New value is 1E-5 T (old value was 7.09E-5 T) |
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Monday, April 27, 2015, 10:28, David Wang, Conditioning Station, Standard Operation, TM1, UCx12, TM4 has been partially disconnected at CS.
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| TM1 has been partially disconnected at CS for tomorrow move. The CS TP1S is still running and will be stopped and disconnected tomorrow morning. |
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Tuesday, April 28, 2015, 10:21, David Wang, Conditioning Station, Standard Operation, TM1, UCx12, CS and TM1 was vented with Argon gas
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| Dan and I vented CS and TM1 with Argon gas before it is moved this morning. |
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Tuesday, April 28, 2015, 10:26, David Wang, ITW, Standard Operation, TM1, UCx12, ITW target pit o-ring seal replacement.
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Dan and I replaced ITW target pit o-ring seal(.275DIA X42"ID). It is an annual job before first beam to ITW. The old o-ring was moved and the groove
was vacuum cleaned. The new o-ring has been installed properly. |
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Tuesday, April 28, 2015, 11:14, Travis Cave, ITW, Standard Operation, TM1, UC#12, Module move
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| TM#1 with UC#12 has been moved from the conditioning station to the west target station. |
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Tuesday, April 28, 2015, 17:17, David Wang, ITW, Standard Operation, TM1, UCx12, TM1 has been connected in ITW.
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TM1 has been connected in ITW. Five turbo pumps have been started. The TM1 containment box window line is capped on the service cap and the line
is pump town to E-4 torr range. |
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Friday, May 22, 2015, 15:44, David Wang, ITW, Standard Operation, TM1, UCx12, 5 Shielding blocks have been transferred from ITE to ITW.
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5 shielding blocks have been transferred from ITE to ITW. I checked all ITW water signals, and they are good. ITW is configured to take proton
beam. |
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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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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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Tuesday, June 30, 2015, 11:27, Travis Cave, ITW, Standard Operation, TM1, UC#12, Module moved
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| TM#1 with UC#12 has been moved from the west station to the south hot cell. |
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Tuesday, June 30, 2015, 12:37, chad fisher, South Hot-Cell, Standard Operation, TM1, UCx#12, UCx #12 Removal
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UCx#12 has been removed from TM1 and placed in a pail with argon.
Right leg (B) of target is clearly broken.
Containment Box cover re-installed and module ready to move. |
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Tuesday, June 30, 2015, 15:41, David Wang, ITW, Standard Operation, TM1, , TM1 was disconnected in ITW this morning.
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| TM1 was disconnected in ITW this morning. The ITW was vented with argon last night. |
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Thursday, July 02, 2015, 11:49, Travis Cave, South Hot-Cell, Standard Operation, TM1, no target, Module moved
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| TM#1 has been moved from the south hot cell to the south west silo. |
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Thursday, July 09, 2015, 13:17, Anders Mjos, Conditioning Station, Standard Operation, TM1, , TM1 in TCS for alpha contamination test
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Thursday, July 09, 2015, 13:17: Water package started.
Thursday, July 09, 2015, 15:20: Water package stopped.
Friday, July 10, 2015, 14:15: Roughing with new pump |
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Thursday, July 09, 2015, 14:02, David Wang, Conditioning Station, Development, TM1, , TM1 is pumping down at CS
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TM1 and CS vacuum system are connected. All turbo-pumps are started. The new TP1S works fine also. The pumping down looks good so far. During the
TM1 and CS roughing down time, Joe .M noticed a Rn-220 level surge up in TH . Then,the Rn220 level slowly dropped back. Anders suspected this Rn-220
surging is related to the TM1 roughing down at CS. We decided we will stop the pumps , vent the CS , and roughing again tomorrow. During the same |
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Friday, July 10, 2015, 14:41, Anders Mjos, Conditioning Station, Maintenance, TM1, , Replaced roughing pump
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| The roughing pump was replaced with a more leak tight pump due to the discovery of Rn-220 migration while roughing on TM1 in TCS |
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Monday, July 13, 2015, 11:31, Travis Cave, Conditioning Station, Standard Operation, TM1, no target, Module moved
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| TM#1 has been moved back to the south west silo from the conditioning station. |
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Wednesday, September 09, 2015, 09:59, Travis Cave, South Hot-Cell, Standard Operation, TM1, no target, Module moved
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| TM#1 has been moved from the south west silo to the south hot cell. |
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Thursday, September 10, 2015, 08:55, chad fisher, South Hot-Cell, Repair, TM1, , TM1 Window Leak Diag.
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Vacuum leak check on the window line circuit of TM1 took place yesterday and again to confirm this morning. Both days the response to helium is in the
area of a soldered reduction fitting at the top of the containment box above and to the shutter side of the extraction column (see attached picture). To
verify this morning each joint in the system had a 1 second shot of helium and then timed for 1 minute to wait for a response. This area responded both |
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