 Monday, January 24, 2022, 11:18, David Wang, ITE/ITW, Standard Operation, , , TH emergency exit hatch functional check
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TH emergency exit hatch which is located on TH west end roof is opened and closed for functional check. The hatch works fine. The limit switch on hatch
is in position. No obstacle on hatch way to the roof. |
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Tuesday, January 25, 2022, 08:57, David Wang, ITE/ITW, Standard Operation, , , ITE/ITW have been cleaned with vacuum canister.
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ITE/ITW are cleaned with vacuum canister. HV cage inside and blue nylon insulators are wiped. Garbage inside the pits are cleaned out.
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Tuesday, January 25, 2022, 12:49, David Wang, ITE/ITW, Standard Operation, , , Target station vacuum system visual inspection.
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Two shielding blocks above vacuum station at TH west end were opened for inspection. Checked ITH:MP1, MP2 lubricant color and level through sight
gauge on pumps. They are still ok. Restored the shielding blocks. Checked ITM:MP1 by decay tank (Mirror checked sight gauge by north
wall). Added lubricant to ITM:MP1 to middle level on sight gauge. |
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Thursday, February 24, 2022, 13:23, David Wang, ITE/ITW, Maintenance, , , Polyurethane water cooling lines replacement in ITE and ITW.
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Polyurethane water cooling lines in ITE and ITW HV shroud are replaced. Both stations Ta, Tu, MSP, HS, Coil , EE in HV shroud are new
lines. |
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Wednesday, March 02, 2022, 10:51, David Wang, ITE/ITW, Standard Operation, , , Replaced old turbopump and 2A3M20 wire scanner are transferred to cyclotron tunnel.
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Replaced 9 old turbo pumps from ITE/ ITW and one 2A3M20 wire scanner from ITE are transferred to cyclotron tunnel for storage. It is TH RAD waste
cleanup task in winter shut down. |
Tuesday, June 07, 2022, 14:15, Frank Song, ITE/ITW, Standard Operation, TM2, SiC#42, Module Connection 
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| TM2 with Febiad target SiC#42 was connected in ITW. |
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Thursday, August 18, 2022, 10:41, Frank Song, ITE/ITW, Standard Operation, TM4, SiC#44, TM4 with SiC#44 connection in ITE
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| TM4 with target SiC#44 was connected in ITE on Tuesday. |
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Monday, October 17, 2022, 08:07, David Wang, ITE/ITW, Repair, TM4, , A small leak on target station secondaryvacuum back up line by ITH MP1S.
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A small leak in target station secondary vacuum back
up line is observed. It affects ITH CG2S,CG1S and CG4SA. Current draw on TP1s and TP4S is getting higher(above 1A) because of it. An internal leak in
ITH MP1S is suspected by first round investigation. Close watching on system and further investigation are needed.
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Wednesday, February 22, 2023, 09:22, Carla Babcock, ITE/ITW, Standard Operation, , , HV testing of ITE/ITW
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Feb. 16 2023: HV tests done on ITE station. Ramped up to 59kV but was not stable there, current draw was very unstable and was sparking every ~6mins.
Ramped down to 58kV and it was stable there for 3 hours drawing 285uA.
Feb. 24 2023: HV tests done on ITW station. Ramped easily to 60kV with no sparking - suspicious. Has been stable at 60kV for 45mins with no sparks |
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Wednesday, March 01, 2023, 10:01, David Wang, ITE/ITW, Development, , , vacuum pit ventilation upgrade.
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vacuum pit ventilation upgrade was done last week. The jobs include: installed two industrial cooling fans. One is placed in pit on resin
tan cover. Other one is placed on and opening to pit by shielding blocks. They are installed for better air circulation in pit. Also, 2x two
small 20W cooling fans are installed on ITH MP1 and MP1S to low the pump operation temperature. The result is positive. The ventilation status |
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Monday, March 13, 2023, 11:25, Carla Babcock, ITE/ITW, Development, , , 10kOhm resistors installed in ITE/ITW faraday cages
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On Sept. 14 2022, a 10kOhm 30W resistor was installed in each target station faraday cage, in line with the HV bias supply. This was an effort to reduce
the current draw from the BIAS supply and protect the power supply controls cards which have been repeatedly breaking due to HV sparks (we think). In the
end we still broke cards after the installation, so it doesn't seem to have helped. See below for details on the electrical side: |
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Thursday, March 30, 2023, 14:29, Frank Song, ITE/ITW, Development, , , Preparation of target stations for FEBIAD runs
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Helium cylinder and Argon cylinder are installed in both ITE/ITW faraday cages , regulator for outlet pressure are not set yet.
TO ITE : Argon bottle size 14"L x 4"D with SV2 connected at pressure 900 Psi ( 70 bar ) |
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Tuesday, May 30, 2023, 14:19, David Wang, ITE/ITW, Standard Operation, , , BL2A MAA primary beam exclusion area ASU test.
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MAA ASU test have been done following document 154779. All three tests in document are passed. DCR Jas has all test documents.
This test includes the functional test on TH emergency roof hatch which is located at the west end of TH roof. The hatch could be opened and closed
properly from TH inside. |
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Friday, October 13, 2023, 11:51, David Wang, ITE/ITW, Maintenance, , , ITH:MP1 is replaced due to its poor performance.
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ITH:MP1 is replaced this morning due to its poor performance started yesterday afternoon. The general field in pit is about 260usv/hr. the contact field
on pump is 2.0 msv/hr. New pump works good. Lubricant in pump will be drained next week. then motor will be removed. The pump body will be bagged and stored
in silo area. |
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Wednesday, April 17, 2024, 11:58, David Wang, ITE/ITW, Maintenance, , , ITH:MP1S pump inside lubricant was changed today.
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ITH:MP1S pump inside lubricant was changed today. old lubricant is dirty with dark color. they are stored in sealed waste oil jug and stored in silo
area. Pump has been installed back and started. It works fine. |
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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, May 07, 2024, 09:47, David Wang, ITE/ITW, Maintenance, TM2, , Broken TM2:TP2 has been replaced.
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Broken TM2:TP2 has been replaced otday by a new TV-1001 nav pump supplied by vacuum group. replaced pump seris number:201281. new pump series number:IT23431008.
TPs replacement history sheet will be updated by Frank. I will put comment on this e fault and let operator to close it. |
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Tuesday, September 24, 2024, 09:37, Frank Song, ITE/ITW, Standard Operation, , , shielding blocks transfer
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| 5 shielding blocks have been moved from ITE to ITW. |
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Tuesday, January 21, 2025, 10:46, David Wang, ITE/ITW, Standard Operation, , , ITW/ITE pit general annual cleaning up.
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ITW/ITE pit general annual cleaning up were done. all concrete floor and TM equipment surface are vacuum cleaned. HV cage inside and blue nylon
insulators were wiped by paper. |
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Wednesday, July 20, 2011, 09:55, Travis Cave, ITE, Standard Operation, TM4, Ta#36, Move of TM#4 from South Hot Cell to East Target Station.
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| Move completed, move went well. |
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