 Tuesday, September 25, 2018, 07:54, David Wang, Conditioning Station, Repair, TM3, , TM3 is connected for HV test at TCS.
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water loops are by passed on top. All bias, EE, and EL are tied together. Started water system. |
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Wednesday, September 26, 2018, 07:14, David Wang, Conditioning Station, Repair, TM3, , TM3 HV test at TCS.
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I did a HV test on TM3 at TCS yesterday. HV Ramp up speed: 1KV per 5 minutes when below 30KV,1KV per 10 minutes from 30-36KV. There is no major spark below36 KV . I could see lots small and big vacuum response on IG1 and PNG2 when conditioning from 30-36 KV, especially when closing to 36 KV. However, At 36.4 KV, There is a big continuous spark occurred. It could not be stopped until I lowed the HV to 14KV. I have to ramp up from 14 KV again. This behavior on TM3 HV test is same as before we saw. The module can not pass 36KV at present condition. During the test., EL is tied to 60KV bias. The HV cover on TM3 top is installed. And, Service tray cover plate is installed on TM3. |
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Thursday, September 27, 2018, 13:58, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, Module move
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TM#3 has been moved from the conditioning station to the centre east silo. This will be its new home after the silo switcher-roo. |
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Tuesday, October 09, 2018, 12:32, David Wang, Conditioning Station, Repair, TM4, , TM4 steers 4 pin feedthrough CF flange
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TM4 Steers 4 pin feedthrough CF flange is replaced due an inside feed through insulator broken. CF 25 cooper seal is replaced with a new one as well. Travis did anelectrical check. after replacement. Everything looks fine.
Note only a megger check was performed on the affected steering lines. Open load was measured on all lines. (Travis Cave) |
Wednesday, October 10, 2018, 10:50, Travis Cave, Conditioning Station, Standard Operation, TM4, Ta#57, Electrical Check 
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The various electrical check done on TM#4 after the UC run and before the start of the Ta run. |
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Friday, October 26, 2018, 09:44, Travis Cave, Conditioning Station, Standard Operation, , , Exit Module moved
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The west exit #2 module has been moved from the south hot cell to the conditioning station. |
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Monday, October 29, 2018, 10:43, David Wang, Conditioning Station, Repair, , , ITW exit 2 leak check at TCS.
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I did a leak check this morning on exit 2 module at TCS. LD base leak rate is 4.00XE-9atm.cc/sec, Base pressure is 0.00 X E-4 torr. All seals, bellows, and flanges are checked. The new FC5 bellow is good. There is a big leak up to 2X E-6 atm.c/sec has been found on IG1S side panel . The panel itself will be replaced this time. Machine shop is working on it.. Two small leaks in E-9 atm.cc/sec range have been found on the o-ring between service cap steel welding frame and the whole cap top cover plate in different location . All bolts on the top plate pressing down the o-ring are very tight. I can do nothing on them. However, I sprayed some vacuum seal around the leak area. The leaks are small and close to ITE TP1S. I don not think we have to replace it at this moment. Basically, The module is good to move to ITW tomorrow morning. |
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Wednesday, October 31, 2018, 14:20, Travis Cave, Conditioning Station, Standard Operation, TM2, UC#25, Module move
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| TM#2 with UC#25 has been moved from the south hot cell to the conditioning station. |
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Thursday, November 01, 2018, 11:42, David Wang, Conditioning Station, Standard Operation, TM2, UCx 25., TM2 HS line helium pressure test at TCS and helium spray at SHC..
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Chad and I did leak check on TM2 HS line at SHC yesterday. Base LR 0.0XE-9 atm.cc/sec. No response on LD. during helium spray. Today , I did helium pressure test at TCS. base LR 0.0xe-9atm.cc/sec. applied 70psi helium for 3 minute. leak rate slowly climbed to2.2 Xe-7 atm.cc/sec ate stopped there. The result is close to before. |
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Monday, November 05, 2018, 14:27, Anders Mjos, Conditioning Station, Standard Operation, TM2, UC#25, Target module disconnected
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Frank and Anders disconnected the water and electrical connections this afternoon after the target was conditioned over the weekend. The heater ramping program ran with the wrong gauge selected, causing the vacuum to go higher than planned. The module will be moved to ITW tomorrow. |
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Wednesday, November 28, 2018, 06:39, David Wang, Conditioning Station, Standard Operation, , , Disconnection checklist LpTa #56
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TM4 was disconnected in ITE. Checklist list in attachment. |
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Wednesday, November 28, 2018, 13:38, Travis Cave, Conditioning Station, Standard Operation, TM4, UC#26, Module move
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TM#4 with UC#26 has been moved from the south hot cell to the conditioning station. |
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Wednesday, December 19, 2018, 14:41, Anders Mjos, Conditioning Station, Standard Operation, , No target, Installed Shield Block on TCS
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Frank and Anders installed lid on TCS and started vacuum system yesterday. To run over the Holidays. Retrieved dose badge from operational storage area. Measured field to be ~ 10 mSv/h at ~9am. Beam went off about 8:30am. |
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Wednesday, January 02, 2019, 10:26, Anders Mjos, Conditioning Station, Standard Operation, , , Restarrted TP1S
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Found pumps off after the holidays. Restarted roughing pump and TP1S |
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Wednesday, January 09, 2019, 06:26, David Wang, Conditioning Station, Standard Operation, , , TCS vacuum pumps have been stopped.
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The tCS will be vented soon for TM2 move later this week. |
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Thursday, January 10, 2019, 09:26, Travis Cave, Conditioning Station, Standard Operation, TM2, no target, Module move
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TM#2 has been moved from the south hot cell to the conditioning station. |
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Thursday, January 10, 2019, 10:45, David Wang, Conditioning Station, Standard Operation, TM2, , TM2 is under vacum at TCS.
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TCS: TP1, TP2 and TP1S are started. |
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Friday, January 11, 2019, 13:17, David Wang, Conditioning Station, Standard Operation, TM2, , TCS and TM2 vacuum system are switched off for this Sunday power outage.
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I will restart all pumps Monday morning. |
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Monday, January 14, 2019, 07:07, David Wang, Conditioning Station, Maintenance, TM2, , Restarted TCS vacuum system .
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No issue. |
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Monday, January 28, 2019, 10:41, David Wang, Conditioning Station, Repair, TM2, , TM2 water lines helium pressure test at TCS
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leak detector base LR: 0.0Xe-9atm.cc/sec. helium 70 psi. test time : 3 minutes for each circuit.The results in atm.cc/sec are Ta+(A):1.8 XE-8. TA-(B):0.0xE-9. Tu-(C):1.2XE-7. TU+(D):1.6XE-7. Coil 2 (PQ):0.0XE-9. Coil 1 (RU):0.0XE-9. MSP:2.2XE-7. EE:1.0XE-7. HS:N/A. Window:5.8XE-9 |
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