 Thursday, September 28, 2017, 17:44, Anders Mjos, Conditioning Station, Standard Operation, TM2, Ta#54, Conditioning Ta#54 
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Thursday, September 28, 2017
Cooling water not yet connected to TM.
High leakage current still observed. 200 uA at 22 kV. Did not go past 25 kV.
Friday, September 29, 2017, 14:05: Started heater ramping to 580 / 200 A at 1 A/min
Friday, September 29, 2017, 14:09: BIAS / EZL / EE at 20 / 10 / 1.5 kV. BIAS current at 90 uA
Monday, October 02, 2017, 10:29: Accidentally set BIAS current limit to 0 A (step size too large) at 28 kV. This also caused the TGHT to got to 0 A. Recovered to 580 A in 10 - 15 s.
Monday, October 02, 2017, 12:07: Ramping down heaters at 2 A / min |
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Friday, October 06, 2017, 13:25, Anders Mjos, Conditioning Station, Repair, , , HV Test
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HV was brought up to 70 kV for 1 h without sparks to test the new water installation. |
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Tuesday, October 10, 2017, 10:45, David Wang, Conditioning Station, Repair, , , Re-route TCS water lines. 8x
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TCS cooling polyurethane lines have been re-routed to solve to HV sparking issue on old configuration between lines and bais plate. New re-routed system is tested to 70KV without spark. No leak has been found on new lines after the test.
ECO 4369, drawings and models IRH1715, IRH1716 have been issued and released for this job. Drawings and Models are located in PDM-ISAC1 -TCS polyurethane water lines re-route folder. |
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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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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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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, 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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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, 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, 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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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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Wednesday, December 06, 2017, 09:33, Anders Mjos, Conditioning Station, Maintenance, , , Running chiller for maintenance tech
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Dakine is on site to do maintenance on the chiller. The tech requested the chiller to operate. |
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Thursday, December 21, 2017, 15:11, Anders Mjos, Conditioning Station, Maintenance, , , Powered down devices
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Powered down mechanical pumps in ISAC-I Experimental hall, vacuum gauge and turbo pump controllers in ISAC-I B2 North Hot Cell service area |
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Tuesday, January 02, 2018, 14:47, Anders Mjos, Conditioning Station, Standard Operation, , , Pumping on secondary vacuum
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Tuesday, January 02, 2018, 14:45: TP1S started |
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Tuesday, January 02, 2018, 15:17, Anders Mjos, Conditioning Station, Maintenance, , , Tested chiller
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Tested all 3 compressors and MP2 |
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Thursday, January 04, 2018, 13:28, Anders Mjos, Conditioning Station, Maintenance, , , Troubleshooting IG1S
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TCS:IG1S is reporting vacuum levels that seem to be too low (1E-10 to 1E-8 Torr). The gauge was connected to the controller for IG1, which showed the same value. A degas was performed for ~5 min. |
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Wednesday, January 17, 2018, 06:51, David Wang, Conditioning Station, Standard Operation, , , Stop TCS vacuum pumps
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I stopped TCS vacuum pumps for coming TM3 move. |
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Wednesday, January 17, 2018, 13:54, David Wang, Conditioning Station, Standard Operation, TM3, , Start TM3 turbo pumps at TCS.
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TM3 turbo-pumps are started at TCS. We will keep pumps running until next Wednesday. |
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Monday, January 22, 2018, 07:47, David Wang, Conditioning Station, Standard Operation, TM3, , Restarted TM3 vacuum sysytem after site power bump
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All TCS and TM3 vacuum pumps are started successfully. |
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Wednesday, January 24, 2018, 13:30, David Wang, Conditioning Station, Standard Operation, TM1, , TM1 has been moved to TCS this morning
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Tm1 has been moved to TCS this morning. All turbo-pumps are started successfully at TCS and TM1. |
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