 Wednesday, July 18, 2012, 16:49, Grant Minor, South Hot-Cell, Development, , , South Hot Cell Ventilation Alarm Trip
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Today (Wednesday July 18th) at around 4:15 pm I was taking a small tour group from VECC into the Target Hall. In the process of discussing the mechanical
design of the Target Modules and South Hot Cell turntable I inadvertently lifted the Aluminum Hatch Cover of the Hot Cell about 2 inches in an effort
to explain something. This tripped the ventilation alarm before I realized what I was doing. I evacuated the visitors from the Target Hall, checked |
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Tuesday, July 31, 2012, 10:50, Travis Cave, South Hot-Cell, Standard Operation, TM1, Ta#38, module move
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| TM#1 with Ta#38 has been moved from the west target station to the south hot cell, no problems with the move. |
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Tuesday, July 31, 2012, 12:24, chad fisher, South Hot-Cell, Standard Operation, TM1, UCx#4, UCx#4 Installed
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Starting at 11:00 am and finishing at 12:10 Ucx#4 previous target was removed and UCx#4 installed and leak checked on TM1.
During module move to the hot cell UCx#4 was housed in a bag under argon. |
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Tuesday, July 31, 2012, 12:50, David Wang, South Hot-Cell, Standard Operation, TM1, UC x, TM1 heat shield circuit leak check with UC x target
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Chad and i did a leak check on TM1heat shield with UCx target on.The circuit are pumped down to the bottom leak rate and base pressure is 3xE-3
torr on the leak detector. There are two VCR caps on heat shield circuit. Chad sprayed helium on both of them ( tested individually,2 seconds
every time ) . The test repeated 1 time.There is no response on leak detector during 45 seconds waiting time on both time.Chad flushed helium around the |
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Friday, August 31, 2012, 12:10, chad fisher, South Hot-Cell, Maintenance, , , Hot Cell Maitenance
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Entered south hot cell Wednesday and replaced the pre-filter air filter as well as the front two light bulbs. Also removed two bags of compressible garbage,
one bag of metal, and of course the bagged air filter (as Joe M. expressed as interest in havung it).
Inital checks found approximately 4000 cpm on the cell side of the temporary Al. panel used during the cell entry, 2000 cpm on the tacky mats layed |
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Tuesday, September 04, 2012, 11:11, Travis Cave, South Hot-Cell, Standard Operation, TM4, UO#3, module move
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| TM#4 with UO#3 has been moved from the east target station to the south hot cell for a target exchange. The move went well. |
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Tuesday, September 04, 2012, 14:34, David Wang, South Hot-Cell, Standard Operation, TM4, NiO #1, TM4 heat shield circuit leak check with NiO#1 target
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Chad and i did a leak check on TM4 heat shield circuit with new NiO#1 target installed. It took about 40 mins(much longer than usual) to pump down the
circuit to leak rate 0.6x E-9atm.cc/sec and 0.0x E-4 torr o leak detector.
All vacuum lines and joints which connected to the leak detector had been helium sprayed and they are leak tight.Chad sprayed helium on each |
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Wednesday, September 05, 2012, 14:36, chad fisher, South Hot-Cell, Standard Operation, TM4, NiO #1, UOx removal NiO installation
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UOx was removed from TM4 yesterday and NiO#1 installed.
Video was taken.
Main stand-off insulators continue to deteriorate. |
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Thursday, September 13, 2012, 11:03, Travis Cave, South Hot-Cell, Standard Operation, TM1, UCx#4, module move
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| TM#1 with UCx#4 has been moved from the west target station to the south hot cell. Move went well. |
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Thursday, September 13, 2012, 13:27, Travis Cave, South Hot-Cell, Standard Operation, TM1, no target, module move
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| TM#1 has been moved from the south hot cell to the south west silo. Move went well. |
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Tuesday, September 18, 2012, 09:13, Travis Cave, South Hot-Cell, Standard Operation, TM1, no target, module move
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| TM#1 moved from the south west silo to the south hot cell, move went well. |
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Tuesday, September 18, 2012, 13:41, David Wang, South Hot-Cell, Standard Operation, TM1, Nb#7, leak check heat shield circuit
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Chad and i did a leak check on TM1 heat shield circuit with new Nb#7 target installed. It took about 5 mins pump down the circuit to leak rate 0.0x
E-9atm.cc/sec and 0.0x E-4 torr on leak detector.
All vacuum lines and joints which connected to the leak detector had been helium sprayed and they are leak tight. Chad sprayed helium on |
Tuesday, September 18, 2012, 13:47, chad fisher, South Hot-Cell, Standard Operation, TM1, Nb#7, Nb #7 install Cover Baseline 
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Nb #7 was installed and tested today.
Inside face of the containment box cover was cleaned with methanol and a baseline picture taken in an effort to track deposits and marking as requested
bty Anders. |
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Wednesday, September 19, 2012, 11:23, Travis Cave, South Hot-Cell, Standard Operation, TM1, Nb#7, Electrical check
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TM#1 with Nb#7 attached was electrically checked at the south hot cell yesterday, see attached pdf for details. Some notes about this test the oven to
the 60kV common is 2Mohm this was noticed on the target prior to installation on the module, and the 60kV common to chassis is low at 874Mohm (low as in
a non infinite value). |
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Tuesday, October 09, 2012, 13:44, chad fisher, South Hot-Cell, Standard Operation, TM4, UCx#5, NiO#1 removal UCx#5 installation
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NiO#1 was removed this morning.
UCx#5 was inserted into the hot cell around 1 pm, installed and leak checked and ready to go to the conditioning station 1:40pm
did have a little trouble with the 9 pin connector. It had to be lossened to get it to mate properly. It was le-tightened once the proper fit was |
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Tuesday, November 06, 2012, 11:34, chad fisher, South Hot-Cell, Standard Operation, TM1, , Nb#7 Removal
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| Attached are pre-removal pictures of NB#7 and the inside face of the containment box cover before cleaning. |
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Tuesday, November 06, 2012, 14:00, chad fisher, South Hot-Cell, Standard Operation, TM1, TiC#3, TiC#3 Installed
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| TiC#3 sucessfully installed and ready for leak and electrical check. |
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Wednesday, November 07, 2012, 09:25, Travis Cave, South Hot-Cell, Standard Operation, TM1, TiC#3, Electrical check
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| TM#1 with TiC#3 target has had the electrical performed on it. See attached PDF for details. |
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Wednesday, November 07, 2012, 11:09, David Wang, South Hot-Cell, Standard Operation, TM1, TiC , TM1 heat shield circuit leak check with TiC target at hot cell
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Chad and i did a leak check on TM1(Lp-TiC) heat shield water circuit at south hot cell. There is no leak had been found on it. The circuit is leak
tight at present. I will do helium pressure check on this circuit at conditioning station once the vacuum is good enough. |
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Thursday, November 08, 2012, 09:37, chad fisher, South Hot-Cell, Standard Operation, TM1, Nb#7, Nb#7 Autopsy
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| Nb#7 was dismantled and ready for inspection. |
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