 Wednesday, November 15, 2017, 08:55, David Wang, Conditioning Station, Standard Operation, , , Install shield plug onto TCS and pumping down TCS.
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Shielding plug is installed onto TCS. TCS is being pumped down to keep it under vacuum for the rest of the year. |
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Tuesday, November 14, 2017, 14:34, David Wang, ITW, Standard Operation, TM2, Ta#55, TM2 has been connected in ITW.
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TM2 has been connected in ITW. All turbo-pumps are started. Everything works fine. |
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Tuesday, November 14, 2017, 10:01, Travis Cave, ITW, Standard Operation, TM2, Ta#55, Module move
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TM#2 with Ta#55 has been moved from the conditioning station to the west target station. The field was measured on the access panel to the service chase and the field was found to be 430uSv/hr at one meter from the module. |
Monday, November 13, 2017, 13:50, Travis Cave, Spent Target Vault, Standard Operation, , Ta#54, Spent Target Move 
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The spent Ta#54 target has been moved from the south hot cell to the spent target vault. It was placed in Pail #157 and put in spot #5B of the vault. |
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Monday, November 13, 2017, 13:39, Travis Cave, South Hot-Cell, Standard Operation, TM2, Ta#54 and #55, Electrical Check
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The results of the various electrical check done on the target module on November 7th and 8th of 2017. Checks were done with the old Ta#54 target without a target and finally with the new Ta#55 target. See the attached PDF for results. |
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Thursday, November 09, 2017, 10:39, Anders Mjos, Conditioning Station, Standard Operation, TM2, Ta#55, Conditioning Ta#55
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Thursday, November 09, 2017, 10:40: BIAS / EL to 30 / 15 kV. 400 uA on BIAS
Bias was stable for 1 hour. Handed over to RIB ops for heater conditioning. |
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Thursday, November 09, 2017, 09:35, David Wang, Conditioning Station, Standard Operation, TM2, Ta#55, TM2 has been connected at TCS
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TCS vacuum system and water system have been started as well. Everything looks fine. |
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Thursday, November 09, 2017, 09:34, David Wang, Conditioning Station, Standard Operation, TM2, Ta#55, Leak check on TM2 HS line at SHC and TCS.
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The TM2 HS line was leak checked at SHC yesterday . 0.9xE-9 atm.cc/sec.Helium sprayed by Chad, NO leak. It was helium pressurized at TCS this morning. Leak rat:2.5 XE-7 atm.c/sec. The result is same as last time check. No concern. |
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Thursday, November 09, 2017, 08:46, Anders Mjos, Conditioning Station, Repair, , , Communication fiber replaced for HV PLC
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After extensive troubleshooting the communication fiber was found to be damaged and has been replaced by Gelo. |
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Tuesday, November 07, 2017, 10:11, Travis Cave, South Hot-Cell, Standard Operation, TM2, Ta#54, Module move
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TM#2 with Ta#54 has been moved from the west target station to the south hot cell. |
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Thursday, October 26, 2017, 13:20, Travis Cave, Spent Target Vault, Standard Operation, , SiC#30,ZrC#7,Ta#44,TiC#4, and Ta#41, Targets moved to mini storage
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SiC#30,ZrC#7,Ta#44,TiC#4, and Ta#41 have been moved from the spent target storage to the mini storage. See attached PDF for details of the orders of the pails in the mini vault. |
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Thursday, October 26, 2017, 09:56, Anders Mjos, ITE, Repair, TM4, SiC#37, Leak on multi pin connector feedthrough
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On maintenance day Tuesday, the roughing of the target station could not go below 1.5 Torr. A brief troubleshooting on Tuesday was unsuccessful in determining the cause. Leak checking continued on Wednesday by David and Anders. A leak was finally found on the multi pin connector feedthrough due to the seal between the connector and flange on top of the nylon insulator. Upon re-tightening the connector, the leak could be stopped and the module pumped down to allow starting of turbo pumps. |
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Tuesday, October 24, 2017, 11:58, Travis Cave, ITE, Standard Operation, TM4, SiC#37, Module move
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TM#4 with SiC#37 has been moved from the conditioning station to the east target station. A measurement was taken on TM#4 as it was being removed from the conditioning station, the location was on the side of the service tray access panel approx one metre away and the cover fully exposed, the reading was 750uSV/hr. |
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Monday, October 23, 2017, 13:38, Travis Cave, Spent Target Vault, Standard Operation, , UC#21, Spent Target move
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The spent UC#21 has been moved from the south hot cell to the spent target vault. See attached for details |
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Thursday, October 19, 2017, 14:20, Anders Mjos, Conditioning Station, Standard Operation, TM4, SiC#37, SiC#37 Conditioning
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Thursday, October 19, 2017, 14:20: EE configured for conditioning. HV cage locked up
Thursday, October 19, 2017, 16:46: BIAS / EL / EE at 45 / 22.5 / 0 kV
Thursday, October 19, 2017, 17:16: 30 min without sparking. Lowering to 0. Continue conditioning tomorrow.
Friday, October 20, 2017, 08:22: Resuming HV conditioning
Friday, October 20, 2017, 08:44: BIAS / EL / EE at 45 / 22.5 / 0 kV
Friday, October 20, 2017, 09:48: No sparking. Continue conditionoing
Friday, October 20, 2017, 10:40: BIAS / EL / EE at 50 / 22.5 / 0 kV
Friday, October 20, 2017, 11:30: HV spark (at 52.5 kV) tripped TP2 and TP1s resulting in IG1S and power supplies tripping.
Friday, October 20, 2017, 13:50: Gelo is troubleshooting flickering on/off of ANODE, TGHT and TBHT power supplies.
Friday, October 20, 2017, 13:51: BIAS / EL / EE at 50 / 25 / 0 kV
Friday, October 20, 2017, 14:26: BIAS / EL / EE at 55 / 28 / 0 kV
Friday, October 20, 2017, 14:37: TP2 tripped on spark
Friday, October 20, 2017, 14:51: Gelo has determined there is a communication problem with the PLC on the HV platform. Troubleshooting continues.
Friday, October 20, 2017, 19:02: Troubleshooting did not succeed. Not able to control power supplies. Troubleshooting continue on Monday.
Monday, October 23, 2017, 09:00: After starting the TCS again today communication has been reestablished. Started heater conditioning.
Monday, October 23, 2017, 14:03: Heater ramping previously aborted and ramp down started due to ongoing PLC communication issues. TGHT and TBHT power supplies tripped on timeout around 13:45. Gelo will continue the troubleshooting.
Monday, October 23, 2017, 19:55: Switching off source after operating for 5 hours without any communication glitches detected (fiber optic communication cables swapped between HV platform and BIAS/EZL PLCs) |
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Thursday, October 19, 2017, 14:20, Anders Mjos, Assembly/Bench Test, Standard Operation, , , Source tray inspection
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Two minor chips in the main 60 kV insulators on the source tray was inspected today by Anders, Tom and Aurelia. The chips are small enough that they should not be a problem. See photos for details. |
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Thursday, October 19, 2017, 10:11, David Wang, Conditioning Station, Standard Operation, TM4, , Leak check on TM4 HS line at SHC and TCS.
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Chad and I leak checked TM4 HS line after new target is installed yesterday. No leak has been found. Also, I helium pressurized the HS line at TCS this morning. TM4 HS line is good on this test. The TM4 gas line configuration on TM4 top is leak check as well. No problem. |
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Wednesday, October 18, 2017, 14:54, Anders Mjos, Assembly/Bench Test, Standard Operation, , , Source tray assembly electrical check
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Source tray meggered today by Anders and Keith
GND - MSP OL @ 1000V
MSP - EE OL @ 1000V
EE - GND OL @ 1000V
4x Steerers - GND OL @ 500V
Steerer continuity verified from socket to steerer plates
(looking in the direction of the RIB, labeled top to bottom on sockets)
1 - Top
2 - Left
3 - Right
4 - Bottom |
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Wednesday, October 18, 2017, 10:46, Travis Cave, Conditioning Station, Standard Operation, TM4, SiC#37, Module move
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TM#4 with SiC#37 has been moved from the south hot cell to the conditioning station. |
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Wednesday, October 18, 2017, 10:45, Travis Cave, South Hot-Cell, Standard Operation, TM4, SiC#37, Electrical Check
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The results of the electrical check of TM#4 with SiC#37, see attached PDF. |
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