 Tuesday, July 07, 2015, 12:12, David Wang, Conditioning Station, Repair, , , CS TP1S replacement
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| CS TP1S had been replaced with a new TP-301 pump this morning.The old pump was broken last week. |
Wednesday, July 08, 2015, 12:18, chad fisher, South Hot-Cell, Repair, TM2, , R U Coil line Removal 
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| R U coil line removal started at 11:30. Water block jig installed and coil line disconnected from module. |
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Wednesday, July 08, 2015, 14:05, 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 coil line(R,U) on TM2 at SHC yesterday. The leak detector was pumped down to 0.0Xe-9 atm.cc/sec before the check. Chad sprayed
helium on the soldering joints connecting the cooling copper lines to the small holding blocks for the coil terminal(R,U). After sprayed helium 2
seconds, I saw the leak rate on LD started to climbed up. The highest leak rate is 4.0xE-8 atm.cc/sec. It is a very positive response. We waited the leak |
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Wednesday, July 08, 2015, 14:24, David Wang, South Hot-Cell, Repair, TM2, , TM2 pressure bubble test on RU water blocks.
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July-06, 2015. Chad , Grant and I did the bubble test on R,U water blocks. We suspected the leak on the R,U circuit is from C seals on the water blocks
so we did this test first. I applied both air and helium to R,U circuit , Chad applied snoop soap on the R,U water blocks.The air and helium pressure was
increased from 40 psi to 90 psi Max step by step.Chad did not see any bubbles on the water blocks during the test. Since we did not find the leak source, |
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Wednesday, July 08, 2015, 14:48, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Status
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Water block jig has been removed. Stuck source tray side water block jig component has been removed. An attempt was made to connect the gas lines to
there bracket however they contact/interfer with the tube heater lines...Anders is looking into a solution.
Containment box and front cover have been replaced and TM2 is ready to move to the 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, 13:51, chad fisher, South Hot-Cell, Repair, TM2, , Coil line removal hot cell
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coil line has been removed from the hot cell. Initial decon was performed...after it still appears to have approximately 200 counts. It will now be transfered
to the rad waste decon facility for further decon. |
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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, 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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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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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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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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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, 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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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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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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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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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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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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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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