 Tuesday, November 07, 2023, 13:55, Frank Song, ITE, Standard Operation, TM4, Ta#65, module disconnection 
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| TM4 with spent target Ta#65 was disconnected in ITE and moved to SHC. |
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Wednesday, November 08, 2023, 12:14, Frank Song, South Hot-Cell, Standard Operation, TM4, UCx#43, electrical check/leak check
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| TM4 with new target UCx#43 was electrical and leak checked on SHC. |
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Wednesday, January 10, 2024, 16:51, Carla Babcock, ITE, Standard Operation, TM4, UCx#43, UCx#43 failure
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To deliver stable beam to RadMol, started heating UCx#43 up again. Target was overheated during initial conditioning in Nov but then ran well for
4 weeks. During the run time, the TGHT voltage jumped around and this was reflected in the ion current, but yields seemed unaffected.
When re-heating it, the TGHT voltage was very unstable and once it got to 440A, it went into voltage limiting mode. We ramped down and it was still |
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Monday, January 22, 2024, 10:16, David Wang, ITE, Standard Operation, TM4, UCx#, Tm4 waterlines helium pressure test and TM service cap helium leak check.
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Tm4 waterlines helium pressure test and TM service cap helium leak check was done last Friday. All water lines were pressurized with 70psi helium for
3 minutes each. The 3 minutes stable leak rate on all lines are less than 4.0 X E-9atm.cc/sec. some of lines had surging leak rate to 2xE-8 atm.cc/sec
at the first 10 seconds of pressurization which should be a gas hammer result at the beginning. Based on the numbers, I would say all water lines are leak |
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Monday, January 22, 2024, 14:12, Frank Song, ITE, Standard Operation, TM4, UCx#43, module disconnection
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| TM4 with spent target UCx#43 was disconnected in ITE and is ready moved to SHC. see attachment pls. |
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Wednesday, January 24, 2024, 08:34, chad fisher, South Hot-Cell, Repair, TM4, UCx#43, Plating and coating from UCx#43 failure
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TM4 has seen significant coating of the main standoff insulators and various other components stemming from failure in UCx#43 target. See attached pictures
showing coating on containment box, support frame, main standoff insulators, standoff insulators high voltage shield etc. Note tracking marks on main standoff
insulators. |
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Friday, January 26, 2024, 08:30, David Wang, South Hot-Cell, Standard Operation, TM4, , window line VCR leak check after containment box removal/installation.
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Chad and I did window line VCRs leak check after containment box removal/installation. The first pair of VCRs have leak. Chad changed
VCRs. Both VCr fittings on window lines are completely leak free to 0.0 XE-9 atm.cc/sec now. |
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Friday, January 26, 2024, 11:53, David Wang, Safe Module Parking, Standard Operation, TM4, , Tm4 has been moved to SMP.
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| TM4 has been moved to SMP. The move is smooth. I started SMP vacuum pump. The TM4 and SMP vessel is under vacuum now. |
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Friday, January 26, 2024, 11:57, David Wang, Safe Module Parking, Standard Operation, TM4, , TM4 coil1, 2, and HS electrical check at SMP after module moving.
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TM4 coil1, 2 and HS are all OL at 250V at SMP after module move. This week, Chad and Carl fixed short issue on coil1, 2 and HS by insert dropped ultem
ring back to position at SHC. |
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Friday, January 26, 2024, 16:48, Carla Babcock, South Hot-Cell, Standard Operation, TM4, UC43, UCx#43 PIE
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UCx#43 PIE was done in the SHC. As expected based on electrical measurements, the target container was broken on the right side and came off easily.
Despite all the black stuff seen on the containment box and source tray, the inside of the heat shield was very clean. Checked if the Re foil was curled
in and didn't see anything. Looked fine other than the broken container. |
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Friday, February 02, 2024, 07:48, David Wang, ITE, Standard Operation, TM4, , ITE primary and secondary vacuum vessel leak check.
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ITE primary and secondary vacuum vessel leak check has been done. SST bellow for 2A3M19 wire scanner on entrance module top has a big leak to E-5
atm.cc/sec on tiny helium spray. The bellow will be replaced in March by probe group. The LD base leak rate is affected by this big leak so i cant keep
the LD scale at 0.0Xe-9 atm.cc/sec during the leak check. Other seal are leak free to 8XE-9 atm.cc/sec. I have no big concern on ITE vacuum seals status |
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Friday, April 26, 2024, 13:22, David Wang, South Hot-Cell, Standard Operation, TM4, , TM4 has been moved from SMP to SHC.
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| TM4 has been moved from SMP to SHC. Adam and I did the move. the move is smooth. |
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Monday, April 29, 2024, 14:21, David Wang, ITE/ITW, Standard Operation, TM4, , TM4 has been moved from SHC to ITW.
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| TM4 has been moved from SHC to ITW. Peter did the move. Travis helped on him. The move is successful. |
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Tuesday, April 30, 2024, 08:00, Frank Song, South Hot-Cell, Standard Operation, TM4, Lp-Febiad empty, electrical check/leak check
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| David Wang made E/L checking before module moving to ITW. read attachment pls. |
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Tuesday, April 30, 2024, 09:20, David Wang, ITW, Development, TM4, , A new SST gas line is using for ITW febiad gas staion in pit.
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A new SST gas line with swagelock tube fittings and VCR fit is using for ITW febiad gas staion in pit. Gas line is leak checked on bench. No leak . it
is installed on TM4 in ITW now, |
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Wednesday, May 01, 2024, 09:50, David Wang, ITW, Standard Operation, TM4, , TM4 has been connected to ITW.
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| TM4 has been connected to ITW. see attachment. |
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Thursday, May 02, 2024, 09:00, David Wang, ITW, Standard Operation, TM4, , Annual ITW water signal interlock check has been done.
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| Annual ITW water signal interlock check has been done. Renee helped me on it. Everything works fine. |
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Monday, May 13, 2024, 09:28, David Wang, ITE, Standard Operation, TM4, UCx#44, ITE water signal annual interlock check.
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| ITE water signal annual interlock check is done. Ed helped me on this check. Everything works normal. |
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Tuesday, May 21, 2024, 09:50, David Wang, ITW, Standard Operation, TM4, Lp Febiad empty, Tm4 has been disconnected in ITW.
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| Tm4 has been disconnected in ITW per document 141576. Checklist is done. HS line is purged. |
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Tuesday, May 21, 2024, 11:46, David Wang, ITW, Standard Operation, TM4, LP febiad empty. , Tm4 has been moved from ITW to SHC.
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| Tm4 has been moved from ITW to SHC. the move is smooth. |
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