 Monday, July 16, 2018, 17:41, Anders Mjos, ITE, Standard Operation, TM4, UC#22, Target module disconnected 
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The water and electrical connections were disconnected today as protons remained off after power interruption during the weekend. Vacuum is still connected and operating.
The vacuum system are disconnected 2018-07-17. See attachment . |
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Wednesday, July 25, 2018, 13:21, Anders Mjos, ITW, Repair, TM2, Nb#8, Leak check of ITW
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ITW Entrance Module was leak checked yesterday with the support of Vacuum Group (Dimo & Edi). The leak detector was connected to primary backing vacuum line. A leak response was found near the bellow for the beam profile monitor on top of the Entrance Module. It could be confirmed today by actuating the monitor, that the leak was indeed at that location. The plan is to move the TM and Entrance Module out for target exchange and repair, respectively. Drawings of the device available on ITA0200and ITA5128 |
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Wednesday, August 01, 2018, 15:12, Anders Mjos, South Hot-Cell, Standard Operation, TM2, UC#23, Target mounted - water leak on HS line
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The heat shield water lines were not purged ahead of target exchange in the hot cell. This resulted in water leaking onto the new target assembly (heat shield) when the cooling lines were opened at top and bottom (for connecting leak detector). Excess water was wiped up with paper towels. |
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Monday, September 24, 2018, 10:21, Anders Mjos, South Hot-Cell, Standard Operation, TM2, UC#23, Post Irradiation Examination (PIE)
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UC#23 experienced short between target and heat shield as it was heated during operation. The inspection of the target after irradiation revealed that the left target leg was close to the heat shield opening and likely the cause of the short. Marks could be seen on the leg indicating contact. See attached photo. More photos are available on DocuShare |
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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 07, 2018, 09:50, Anders Mjos, ITW, Standard Operation, TM2, UC#25, TM2 connected in ITW
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TM2 was connected yesterday by Frank and Anders. The West side panel with IG1S on Exit Module 2 was replaced with a new SST panel with 1 CF flange only (dwg). Link to check list on DocuShare. |
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Wednesday, November 14, 2018, 16:10, Anders Mjos, ITW, Repair, TM2, UC#25, ITW:FC5 safety signal troubleshooting
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Measured resistance on safety limit switches for FC5 on Exit Module 2. Determined that the in connected signal did not work (shows not connected irregardless of FC position). Confirmed proper operation of the OUT limit. See attachment for details. The Harp 5 x and y signal connectors were checked and reconnected. |
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Thursday, November 22, 2018, 08:52, Anders Mjos, ITE, Standard Operation, TM4, Ta#57, Closed ITE dump water
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Paddle wheel signal was tripping proton beam in ITW. Valved off ITE dump to divert flow to ITW. Field around valve was about 600 uSv/h |
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Thursday, November 22, 2018, 08:53, Anders Mjos, ITW, Standard Operation, TM2, UC#25, Block move
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Frank and Anders moved blocks from ITE to ITW yesterday |
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Thursday, November 22, 2018, 08:55, Anders Mjos, ITW, Repair, TM2, UC#25, ITW:FC5 safety signal limit switch installed
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Yesterday Diagnostics group installed a temporary external limit switch to provide the in signal to the safety system. |
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Tuesday, December 11, 2018, 14:35, Anders Mjos, ITE, Standard Operation, TM4, UC#26, Block move
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Blocks were moved from ITW to ITE by Frank and David. ITE water flow to dump was re-opened (ITW remains open). A dose badge was installed in the operation storage area. Dose rates were measured to ~10 mSv/h at 1pm. Beam went off approximately 8:30am (with a short period of 2uA ending at 11am). |
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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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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 |
 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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Tuesday, October 01, 2019, 16:30, Anders Mjos, Conditioning Station, Standard Operation, TM2, Ta#58, Conditioning of Ta#58
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Tuesday, October 01, 2019, 15:15: Started roughing.
Tuesday, October 01, 2019, 16:30: Started TPs
Tuesday, October 01, 2019, 16:34: All TPs at speed
Conditioning completed over the weekend by RIB operations. The shutter was left closed on the module, so no beam could be seen on the FC. Conditioning otherwise OK. |
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Thursday, October 31, 2019, 08:49, Anders Mjos, Conditioning Station, Repair, , , Water leak on non-active cooling water circuit
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Yesterday a leak was discovered in the ISAC-I experimental hall. The leak appears to be at the connection between the evaporator and the return water line. 1 in of water was lost from TCS:TK1. The water is currently valved off to prevent further leakage.
A fault reportt has been submitted to mechanical services - awaiting response.
Friday, November 01, 2019
Leak repaired by Mechanical Services. A brass fitting had cracked and was replaced with a galvanized fitting. |
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Thursday, November 07, 2019, 10:39, Anders Mjos, Conditioning Station, Standard Operation, TM2, SiC#38, Conditioing SiC#38
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Thursday, November 07, 2019, 10:35: Tested source to 30 A on TGHT, TBHT and COIL. ANODE at 100 V.
Tuesday, November 12, 2019
The FEBIAD source worked well over the weekend. The anode current limit was adjusted twice to stop voltage limiting. About 5E-8 A on the FC with TGHT=580A, TBHT=300A, ANODE=200V,150 mA, COIL=50A. Bias was conditioned to 30 kV |
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Thursday, February 27, 2020, 16:08, Anders Mjos, North Hot-Cell, Maintenance, , , Hot Cell Entry
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Chad entered the NHC today to tighten set-screws on both slave side manipulators and re-align the West side slave. Work took place using the HC Confined Space Entry procedure. See attached checklist. WP I2020-02-27-4 |
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Thursday, March 19, 2020, 15:48, Anders Mjos, Conditioning Station, Maintenance, , , Filter replacement in water system March 5th
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Filters were replaced by Curtis von Cube on March 5th. See work permit for details I2020-03-05-5 |
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