 Friday, July 05, 2024, 12:50, David Wang, South Hot-Cell, Standard Operation, TM4, TiC#7, TM4 and TiC#7 target electrical check and HS leak check at SHC after target installation .
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TM4 and TiC#7 target electrical check and HS leak check at SHC after target installation have been done. all results are good. I will attach the
checklist when printer is back to work.
TM4 HS line was helium pressure tested at TCS this morning. No leak. Also i leak checked TM4 top all air to vacuum seals at TCS. Everything |
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Monday, July 08, 2024, 10:40, David Wang, Conditioning Station, Standard Operation, TM4, TiC#7, TM4 has been moved from SHC to TCS.
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| TM4 has been moved from SHC to TCS. The move is successfully. |
Tuesday, July 16, 2024, 13:14, Frank Song, ITW, Standard Operation, TM4, TiC#7, Module Connection 
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| TM4 with TiC#7 was connected in ITW, all TPs are running at full speed. |
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Friday, August 09, 2024, 08:11, Frank Song, ITW, Standard Operation, TM4, TiC#7, module disconnection
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| TM4 with spent target TiC#7 (dead) was disconnected in ITW and ready to move to TCS. |
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Friday, August 09, 2024, 18:18, David Wang, ITW, Standard Operation, TM4, TiC#7, Tm4 has been moved from ITW to SMP.
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| Tm4 has been moved from ITW to SMP. the move is successful. |
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Tuesday, August 20, 2024, 11:36, Carla Babcock, South Hot-Cell, Standard Operation, , TiC#7, TiC#7 PIE
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TiC#7 failed after two weeks of operations - measurements in the electrical room indicated that the negative side of the CHT was broken (35kOhms to the
rest of the target). This was likely due to a large number of proton trips during this target run. At every trip I could see the CHT voltage getting higher
and more unstable. This cahnge in voltage was reflected in the unstable anode current and fluctuating RIB beam intensity, as a direct result of the fluctuating |
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Wednesday, August 21, 2024, 10:53, Travis Cave, Spent Target Vault, Standard Operation, , TiC#7, Spent Target Move
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TIC#7 was placed in pail #294 and then moved from the south hot cell to the spent target vault spot 4B. It was 82.3mSv/hr when removed from the
SHC. See attached PDF for details. |
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Friday, May 19, 2023, 09:39, Frank Song, South Hot-Cell, Standard Operation, TM2, TiC#6, leak/electrical check
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| TM2 with TiC#6 was checked on SHC, see pic attached pls. |
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Wednesday, May 24, 2023, 08:34, David Wang, Conditioning Station, Standard Operation, TM2, TiC#6, TM2 HS line helium pressure check and gasline fittins leak check.
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TM2 HS line helium leak check is done. leak detector base LR 1.8xE-8atm.cc/sec. helium pressure 70 psi. 5 minutes test. no change on LD leak rate.
I spray lots helium to gas line adaptor and fittings. No leak.has been found at this base leak rate level. Since the TCS MP1 has some
issue ,this time the base leak rate on LD only can get to 1.8Xe-8 atm.cc/sec at this moment instead of 0.0xE-9. The low E-8 level is not perfect, |
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Monday, May 29, 2023, 12:52, Frank Song, ITW, Standard Operation, TM2, TiC#6, Module Connection
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| TM2 with TiC#6 was connected in ITW (FEBIAD), turbo pumps were started successfully. |
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Tuesday, May 30, 2023, 12:30, Frank Song, ITW, Standard Operation, TM2, TiC#6, gas lines pump out in ITW Faraday Cage
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Gas lines pumped down at electric
room for TM2 at ITW is done, leak rate 0.0e -8 <1.0e -3 T P pressure |
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Tuesday, June 06, 2023, 17:36, Carla Babcock, ITW, Standard Operation, TM2, TiC#6, Module conditioning
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| Conditioned TM2 up to 48kV in ITW. Some sparks and current is not very stable. Drawing about 178uA at 48kV. |
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Tuesday, August 08, 2023, 13:01, David Wang, North Hot-Cell, Standard Operation, TM2, TiC#6, TM2 TiC#6 post run electrical check at NHC.
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| TM2 TiC#6 post run electrical check has been done at TCS. See attachment |
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Wednesday, August 09, 2023, 13:43, Carla Babcock, North Hot-Cell, Standard Operation, TM2, TiC#6, TiC#6 PIE
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PIE on TiC#6 was done in the NHC. The target assembly looked brand new when we took it out, no heating spots or deposits (pictures on docushare). Online
we measured a 400kOhm connection between TGHT-TBHT-COIL to HV common (TGHT and COIL shorted in TM2 service tray) and anode was unstable above ~300V. After
the module move and before the target removal David found TGHT-TBHT-COIL was a dead short to HV common and the anode was at 39kOhms to HV common. |
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Wednesday, August 23, 2023, 10:45, Travis Cave, Spent Target Vault, Standard Operation, , TiC#6, Spent Target Move
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TiC #6 moved from north hot cell to spent target vault placed in pail #232 put in spot 6A and the field was 151mSv/hr when removed from the north
hot cell. See attached PDF for details about spent target vault. |
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Monday, May 08, 2023, 10:59, Frank Song, North Hot-Cell, Standard Operation, TM4, TiC#5, electrical check/leak check
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| TM4 with target TiC#5 installed has been leak checked and electric checked on NHC. |
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Wednesday, May 10, 2023, 08:40, Frank Song, ITE, Standard Operation, TM4, TiC#5, Module Connection
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| TM4 was connected in ITE. pics attached FYI. |
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Monday, May 22, 2023, 15:06, Carla Babcock, ITE, Standard Operation, TM4, TiC#5, Module conditioning
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Yesterday and today module conditioning was done on Tm4 in ITE. This is the first ramp up after the shutdown and ITE is planned to run at high voltages
for the first weeks. The module is behaving well - went up to 40kV yesterday, stayed there for an hour, and up to 46kV today. Current draw is 113uA at
46kV. No serious sparking. |
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Wednesday, May 24, 2023, 17:25, Carla Babcock, ITE, Repair, TM4, TiC#5, Issues with anode short
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When I tried to raise the anode voltage in cathode bias mode on May 23 evening, I found the target or tube shorted to HV common. Investigations in the
faraday cage today showed the same. I removed all the new electronics (resistors, gemovs, etc) from the power supply to no effect, so I disconnected the
TGHT supply and pushed it away from the busbars. There was still a short. David Frank and I then went down to the pit and disconnected everything to measure |
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Tuesday, May 30, 2023, 12:23, Frank Song, ITE, Standard Operation, TM4, TiC#5, gas lines pump out in ITE Faraday Cage
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| argon is being supplied at 6 psi to TM4. |
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