 Wednesday, July 22, 2015, 12:13, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Short Findings 
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Pin X was unplugged, short remained, however any slight pressure on the block towards the source tray makes the short go away.
Confirmed clearance between the EE and thr R / U coil lines as well as MSP of coil line.
Camera inspection would seem to indicate that ALL issues stem from a common location...there is a spot where both the pin X waterline |
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Wednesday, July 22, 2015, 11:31, Travis Cave, South Hot-Cell, Standard Operation, TM2, no target, Electrical Check
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| Electrical check done on TM#2 around the 25th of June 2015, this was before the coil line leak was found. |
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Tuesday, July 21, 2015, 12:38, David Wang, ITW, Repair, , , ITW external water leak on dump circuit has been fixed.
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| The leaking 1/8 NPT(M)-1/4NPT(F) adapter on the ITW dump circuit is replaced. |
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Tuesday, July 21, 2015, 12:29, David Wang, ITE, Maintenance, , , target pit Hepa filter
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Target pit Hepa filter has been replaced today. There is 500 counts on swipe which is taken inside of the replaced filter. The field measurement on the
filter wood box is less than 0.5 usv/hr on contact. Right now,The outlets of the old filter are sealed with thick plastic and duct tape. The whole
filter is wrapped with plastic sheet and tape. It has been moved to SHC ante room. It will be moved out of there by Tony.N soon with RPG help. |
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Tuesday, July 21, 2015, 10:40, Grant Minor, Assembly/Bench Test, Repair, TM2, , TM2 - bench inspection photos from 6-June-2015
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Tuesday, July 21, 2015, 09:21, Travis Cave, South Hot-Cell, Standard Operation, TM2, no target, Electrical Check Failed
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| TM#2 has failed the electrical check see attached pdf for details. |
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Monday, July 20, 2015, 17:11, Grant Minor, South Hot-Cell, Repair, TM2, , TM2 New Source Tray - additional photos 20 July 2015
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A few additional higher-resolution photos of the TM2 source tray with new spacer ITA6270, and bent copper ground line clip.
Also attached is a photo of a 3/8" copper line placed in between the loose ECR line and the Mounting Support Plate line, for dimensional reference. |
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Monday, July 20, 2015, 14:12, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Status
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Ultem high voltage spacer installed and 9 pin banana plug plugged in. Target has been inserted into the hot cell and will be installed after base-line
electrical checks...probably first thing in the morning. |
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Friday, July 17, 2015, 13:51, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Status
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Gas lines extensions installed yesterday were too long and gas lines touched top inside of containment box. They have been removed and the gas lines
re-installed in their original manner. Gas lines have been "adjusted" as to clear the tube heater lines, which was the original issue. |
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Thursday, July 16, 2015, 14:36, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Status
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IMG gauge, clip for ground to window lines and gas line extensions were installed today.
David and I also tried to locate the short between the coil line and MSP/Heat Shield...it went away for a bit...but is back. |
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Thursday, July 16, 2015, 07:38, David Wang, ITE, Standard Operation, , , Target Hall Scheduled Activities April 07 - August 07 2015
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Update the TH schedule according to present TM2 refurbishment process. See attachments 1,2
2015-07-20 , Update the TH schedule after some changes on TM2 and TM4 arrangement. See attachments 3,4 |
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Wednesday, July 15, 2015, 11:18, David Wang, South Hot-Cell, Repair, TM2, , leak check coil line(R,U) on TM2 at SHC
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Chad and I leak checked the coil 1 circuit(R,U) after rebuilt coil line is installed on TM2 source tray. The pumping down on the circuit is very quick
and smooth. The LD base lake rate 0.0xE-9 atm.cc/sec. Base pressure0.0xE-4 torr.
Chad sprayed lots helium on the R( coil 1+)and U(coil 1 -) water blocks. During 1 minute waiting time, there is no any response on LD. The |
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Wednesday, July 15, 2015, 11:02, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Coil Line Vacuum Leak Check
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| TM2 coil line R,U has been vacuum leaked check at the hot cell and has passed with no response from the leak detector. |
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Wednesday, July 15, 2015, 09:44, chad fisher, South Hot-Cell, Repair, TM2, , Coil Line replacement
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water block jig installed, module side sealing surfaces re-polished and cleaned. Coil line inserted into the hot cell and installed onto the module.
Bolts torqued to 90 in.lbs. Received .13mSv. |
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Tuesday, July 14, 2015, 12:56, chad fisher, South Hot-Cell, Repair, TM2, , TM2 containment box removed
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| Containment box was removed from Tm2 this morning in preparation for installation of coil line and all the trimmings. |
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Tuesday, July 14, 2015, 08:42, Travis Cave, South Hot-Cell, Standard Operation, TM2, no target, Module moved
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| TM#2, no target, has been moved from the north east silo to the south hot cell. |
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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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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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Friday, July 10, 2015, 09:33, chad fisher, South Hot-Cell, Repair, TM2, , Coil Line Decon
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Coil line has been in RPG's ultrasonic decon over night. Initial swipes this morning picked up 5000 counts. It has been decontaminated to the point no
more contamination is being found and nothing can be found with the frisker...so...it's ready for Maico and Dan? |
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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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