 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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Thursday, February 14, 2019, 07:13, David Wang, Conditioning Station, Standard Operation, TM2, , TCS vacuum pumps have been stopped.
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Preparation on TM2 move from TCS to SHC. |
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Tuesday, February 26, 2019, 10:33, Travis Cave, Conditioning Station, Standard Operation, TM2, no target, Module move
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TM#2 with no source tray has been moved from the south hot cell to the conditioning station. |
Friday, March 01, 2019, 08:42, Anders Mjos, Conditioning Station, Standard Operation, TM2, , Conditioning TM2 without source tray 
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BIAS and EZL connected. No water flowing into the module (water looped on top of module)
Friday, March 01, 2019, 08:20: 10kV
Friday, March 01, 2019, 08:40: 20kV
Friday, March 01, 2019, 08:57: 30kV
Friday, March 01, 2019, 11:00: 40kV
Friday, March 01, 2019, 15:23: 50kV
Monday, March 04, 2019, 08:50: 50kV
Monday, March 04, 2019, 09:22: 52.5kV
Monday, March 04, 2019, 10:01: Spark tripped TPs at 54kV
Monday, March 04, 2019, 10:04: 50kV
Monday, March 04, 2019, 10:14: Multiple sparks at 54kV. Lowered to 30kV to stop.
Monday, March 04, 2019, 10:15: 40kV
Monday, March 04, 2019, 10:16: Sparking at 42kV. Lowered to 40kV
Monday, March 04, 2019, 10:19: 42kV
Monday, March 04, 2019, 10:48: 50kV
Monday, March 04, 2019, 11:11: 52.5kV
Monday, March 04, 2019, 11:25: 54kV
Monday, March 04, 2019, 11:50: 55kV
Monday, March 04, 2019, 13:33: 3 sparks observed for the last 1.5h
Removed HV cover to avoid sparking between F/T and cover.
Monday, March 04, 2019, 14:02:20kV
Monday, March 04, 2019, 14:06: 50kV
Monday, March 04, 2019, 14:12: 55kV
Monday, March 04, 2019, 14:20: Multiple sparks at 56kV. Lowered to 30kV to stop.
Monday, March 04, 2019, 14:27: 40kV
Monday, March 04, 2019, 14:29: 50kV
Monday, March 04, 2019, 14:32: 55kV
Monday, March 04, 2019, 14:40: 56kV
Monday, March 04, 2019, 14:55: Multiple sparks at 57kV. Lowered to 30kV to stop
Monday, March 04, 2019, 15:01: 55kV
Monday, March 04, 2019, 15:36: 57kV
Monday, March 04, 2019, 15:51: 57.5kV
Monday, March 04, 2019, 16:30: ~1 spark in 0.5h, somewhat unstable current (see attached Word file)
Monday, March 04, 2019, 16:30: HV off |
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Tuesday, March 05, 2019, 07:20, David Wang, Conditioning Station, Repair, TM2, , TM2 HV test at TCS
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Spark between HV cover vertical mesh plate and HS 60KV bias connecting clamp 90degree angle at 55 KV on TM2 top. HV cover is removed to test above 55KV. The spark triggered TH and SHC ventilation secondary alarm. |
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Thursday, March 07, 2019, 09:12, David Wang, Conditioning Station, Standard Operation, TM2, , TM2 move from TCS to SHC.
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TM2 has been moved from TCS to SHC. The move is smooth. |
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Friday, March 15, 2019, 08:51, 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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Monday, March 18, 2019, 07:23, David Wang, Conditioning Station, Repair, TM2, , TM2 window line helium test
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New seals with a blank off cap are installed on TM2 window line water block. The seals are checked at TCS with 70 psi helium for 5 minutes with LD at 0.0xE-9atm/cc.sec. No response on LD during test. Seals are good. |
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Monday, March 18, 2019, 07:25, David Wang, Conditioning Station, Maintenance, TM3, , TCS vacuum pumps have been stopped.
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The TCS will be vented soon for TM2 move. |
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Tuesday, March 26, 2019, 09:32, Travis Cave, Conditioning Station, Standard Operation, TM2, Dummy Target, Module move
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TM#2 with a new source tray and the dummy target has been moved from the south hot cell to the conditioning station. |
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Tuesday, March 26, 2019, 11:10, Travis Cave, Conditioning Station, Standard Operation, TM2, Dummy Target, Electrical Check
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Electrical Check of TM#2 with the dummy target attached. |
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Thursday, March 28, 2019, 10:27, David Wang, Conditioning Station, Repair, TM2, dummy febiad test target, TM2 new source tray helium pressure test at TCS.
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Helium pressure test on TM2 all water circuits is done. 70 psi helium , 10 minutes test time. Leak detector :base leak rate 0.0XE-9 atm.cc/sec, base pressure 0.0Xe-4torr. No any response on LD during the test. All TM2 water circuit are leak free. |
 Thursday, March 28, 2019, 12:48, Anders Mjos, Conditioning Station, Repair, TM2, dummy febiad test target, TM2 new source tray helium pressure test at TCS.
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| David Wang wrote: |
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Helium pressure test on TM2 all water circuits is done. 70 psi helium , 10 minutes test time. Leak detector :base leak rate 0.0XE-9 atm.cc/sec, base pressure 0.0Xe-4torr. No any response on LD during the test. All TM2 water circuit are leak free.
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Thursday, March 28, 2019, 12:40: Found valve to expansion tank TCS:TK2 to be closed. Opened valve. This allow air to escape out of the system and the water system is running as expected again
Friday, March 29, 2019, 11:15: Changed EE to conditioning mode
Friday, March 29, 2019, 11:35: BIAS / EZL 20 / 10 kV
Friday, March 29, 2019, 13:47: BIAS / EZL: 25 / 12.5 kV
Friday, March 29, 2019, 16:09: BIAS / EZL: 30 / 15 kV
Friday, March 29, 2019, 17:23: No sparks for >60 min
Friday, March 29, 2019, 17:26: BIAS / EZL off
Monday, April 01, 2019, 08:13: BIAS / EZL: 30 / 15 kV
Monday, April 01, 2019, 08:33 BIAS / EZL: 35 / 17.5 kV
Monday, April 01, 2019, 09:00: Sparking at about 37.5 kV BIAS. Lowered below 20 kV to stop. Now sparking at around 20 kV
Monday, April 01, 2019, 10:00: BIAS/EZL 22 / 20 kV. Occasional sparking on BIAS as voltage is increased.
Monday, April 01, 2019, 10:05: Change of strategy. Will heat target to bake out the vacuum before continuing with HV conditioning.
Monday, April 01, 2019, 10:43:
BIAS / EZL / EE: 15 / 7.5 / 1.5 kV
COIL / ANODE: 10 A / 200 V
Ramping TGHT / TBHT at 1 A/min. Good/bad vacuum (IG2): 1E-6 / 2E-6 Torr
Monday, April 01, 2019, 19:16: TGHT / TBHT: 500 / 270 A. Vacuum increasing. IG1/2 1.2E-7 / 1.4E-6 Torr
Monday, April 08, 2019, 09:28: BIAS / EZL: 20 / 10 kV (some periods of multiple sparks)
Monday, April 08, 2019, 10:28: BIAS / EZL: 30 / 15 kV (some periods of multiple sparks)
Monday, April 08, 2019, 11:24: 3 sparks for the last 60 min
Monday, April 08, 2019, 14:43: BIAS / EZ: 40 / 20 kV (after two periods of sparking around 39 kV requiring voltage to be reduced below 30 kV to recover)
Monday, April 08, 2019, 15:57: Two sparks in 70 min
Tuesday, April 09, 2019, 12:40: BIAS / EZL 40 / 20 kV with >90 min without sparking
Tuesday, April 09, 2019, 16:00: BIAS / EZL 48 / 24 kV
Tuesday, April 09, 2019, 16:07: Sparking tripped TPs and IG1S, then power supplies.
Tuesday, April 16, 2019, 16:41: BIAS / EZL 50 / 25 kV for 1 hour without sparking.
Wednesday, April 17, 2019, 15:23 : Continued without problems to 50 kV earlier, but sparks tripped off vacuum just above 50kV. Continue later. |
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Wednesday, May 22, 2019, 08:33, Travis Cave, Conditioning Station, Standard Operation, TM1, no target, Module move
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TM#1 has been moved from the north west silo to the conditioning station for the day it will be moved back to the silo tomorrow morning. |
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Wednesday, May 22, 2019, 11:52, David Wang, Conditioning Station, Maintenance, TM1, , TM1 inpsection.
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TM1 shielding plates and their holding bolts are inspected. No corrosion. TM1 is located at TCS now. Both TP1 and TP2 are started. |
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Friday, June 07, 2019, 08:56, Travis Cave, Conditioning Station, Standard Operation, TM4, no target, Module move
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TM#4 has been moved from the south hot cell to the conditioning station. |
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Friday, June 07, 2019, 13:11, David Wang, Conditioning Station, Development, TM4, , TCS and TM4.
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TM4 has been connected at TCS for HV test. TCS water system and vacuum pumps are switched on. |
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