 Tuesday, May 16, 2017, 14:19, Travis Cave, Conditioning Station, Standard Operation, TM4, UC#20, module moved
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TM#4 with UC#20 has been moved from the south hot cell to the conditioning station. |
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Wednesday, May 17, 2017, 08:35, David Wang, Conditioning Station, Standard Operation, TM4, , TCS turbo pumps was started yesterday
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Anders started TCS turbo-pumps yesterday. The TCS and TM4 pumping down is good so far. I started TCS water pumps this morning for TCS water flow check.
2017-05-17 morning: Stopped the water pumps. The field around the TM4 is high because of spent target in SHC. The water flow measurement will be delayed to this Friday. |
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Thursday, May 18, 2017, 10:08, David Wang, Conditioning Station, Standard Operation, TM4, , TM4 TP1 at TCS
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TM4 TP1 was found making some noise during operation this morning. The current draw was check then. It was 1.8 A which is higher than 1.0A normal range. The pump body temperature was higher by hand feeling. But,1.0 hour later when checking again, everything on the pump goes back to normal. It is still fine so far. I will watch on this pump closely.
2017-05-19,morning. The TM4 TP1 stopped running last night. I tried to start it this morning. But, It can't pass 6KRMP even. I think we have to replace it. E- fault will be issued as well. |
Thursday, May 18, 2017, 11:36, Travis Cave, Conditioning Station, Standard Operation, TM4, UC#20, Electrical Check 
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Electrical check of TM#4 with UC#20 at the conditioning station under vacuum. See attached for details. |
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Friday, May 19, 2017, 12:25, David Wang, Conditioning Station, Standard Operation, TM4, , TCS and TM4 water flow measurement.
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TCS(LPM) |
Freq(HZ) |
TCS+TM4(LPM) |
Freq(HZ) |
| Ta |
5.5 |
106 |
3.7 |
68 |
| Tu |
5.6 |
107 |
4.3 |
79 |
| Coil(RU only) |
5.8 |
112 |
4.6 |
92 |
| HS |
7.0 |
13 |
6.6 |
12 |
| MSP |
6.4 |
21 |
5.8 |
21 |
| EE |
5.6 |
112 |
3.8 |
77 |
| Window |
4.5 |
81 |
4.3 |
78 |
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Friday, May 19, 2017, 13:49, David Wang, Conditioning Station, Repair, TM4, , TM4 TP1 at TCS
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TM4 TP1 is replaced. TCS and TM4 was argon vented before the job.The job took about 30minutes. I started the all turbo pumps after job. All pumps work fine. The TCS vacuum is good. |
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Wednesday, June 07, 2017, 13:33, David Wang, Conditioning Station, Standard Operation, TM2, , TM2 SiC#36 leakc check and electrical check.
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The results are good. See attachment. |
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Wednesday, June 07, 2017, 13:34, David Wang, Conditioning Station, Standard Operation, TM2, , TM2 and TCS vacuum system has been connected.
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I started all turbo pumps. |
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Thursday, June 08, 2017, 07:37, David Wang, Conditioning Station, Standard Operation, TM2, , Helium pressure test on TM2 water llines at TCS.
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The helium pressure test on HS line is done at TCS this morning. I got the same result as last time when we helium pressure it it with first target in April. The leak rate on this line is 1.8 XE-7atm.cc/sec. So, we know this leak is mostly on the line, but not on the VCR joints connecting the target. See attachment for last time(April) checking e-log. The leak could be from water block which is same as other lines. I do not think this leak rate will affect the operation.
The attachment can not be opened for some reasons. Please check TM2 leak check 2017-03-13 e- log for last time test result and comment. |
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Thursday, June 08, 2017, 08:35, David Wang, Conditioning Station, Development, TM2, , TM2 gas line reconfiguration on the module top.
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Reconfigured TM2 gas line on the module top. It matches with the febiad gas line we are using on service tray now. Facing the module, both of them should be that right side line of two SST lines on feed-through. The gas line on TM2 was leak checked with a blind cap installed on service tray side and LD connected on module top this Tuesday. It is leak free with helium spray on the top of module and service tray. |
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Monday, June 19, 2017, 07:29, David Wang, Conditioning Station, Standard Operation, TM2, , Update TH MS project schedule.
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Update TH MS project schedule. See attachment 1,2. |
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Tuesday, June 27, 2017, 09:14, Travis Cave, Conditioning Station, Standard Operation, TM4, Ta#52, Module move
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TM#4 with Ta#52 has been moved from south hot cell to the conditioning station. |
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Tuesday, June 27, 2017, 14:34, David Wang, Conditioning Station, Standard Operation, TM4, , TM4 vacuum has been connected at TCS
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Turbo -pumps are started . The vacuum looks good so far. |
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Wednesday, June 28, 2017, 09:14, Travis Cave, Conditioning Station, Standard Operation, TM4, Ta#52, Electrical Check
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Results of electrical check of TM#4 with Ta#52 at the south hot cell and the conditioning station under vacuum. |
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Wednesday, June 28, 2017, 10:00, David Wang, Conditioning Station, Standard Operation, TM4, Ta#52, TM2 has been connected at TCS
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I started TCS water system. |
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Wednesday, June 28, 2017, 16:43, Anders Mjos, Conditioning Station, Standard Operation, TM4, Ta#52, Conditioning Ta#52
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NEW HV cable for BIAS installed earlier this week.
Wednesday, June 28, 2017, 16:42: BIAS at 20 kV
Wednesday, June 28, 2017, 16:46: BIAS at 30 kV, EZL at 15 kV
Wednesday, June 28, 2017, 17:00: BIAS at 35 kV, EZL at 17.5 kV
The voltage response on TBHT and TGHT changed as the target was heated up. This was later determined to be due to target shorting to heat shield and the grounding of the power supplies being achieved at the HV pedestal in the target hall and not in the HV enclosure as is done online. When this was changed, the target operated normally again. |
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Thursday, June 29, 2017, 11:55, David Wang, Conditioning Station, Repair, , , TCS HV cable and feed through installation
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John Chow and I installed new TCS HV cable and feed through with their mounting panel back to TCS Faraday cage this Tuesday. ECO-4269 has been issued for the new cable feed through and mounting panel. |
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Wednesday, July 05, 2017, 11:18, Anders Mjos, Conditioning Station, Maintenance, TM4, Ta#52, Changed electrical configuration to cathode bias
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John Chow configured TCS to cathode bias mode (IRH1538). The anode P/S is in positive mode. |
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Monday, July 10, 2017, 10:19, David Wang, Conditioning Station, Standard Operation, TM4, , Turned off TCS water system
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Prepare for TM4 move tomorrow morning. |
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Wednesday, July 12, 2017, 11:05, Anders Mjos, Conditioning Station, Maintenance, , , Testing of new high voltage cable
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The target hall has been locked-out as per Document-70039.
Forced IG1, IG1S and IG2 to switch on BIAS power supply
Wednesday, July 12, 2017, 11:53: 70 kV at 0.16 mA
2 sparks observed shortly after 70 kV was reached
Wednesday, July 12, 2017, 12:59: No sparks for the last hour.
BIAS power supply off. Forces removed. |
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