 Thursday, February 10, 2022, 11:45, David Wang, Spent Target Vault, Standard Operation, , UCx#33., Spent target UCx #33 has been repacked with a new pail and lid in NHC.
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Spent target UCx #33 has been repacked with a new pail and lid in NHC. Old pail #255. New pail # 267. Location: Vault slot 1C. it is an investigation
job for a possible leak pail in vault. |
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Thursday, February 10, 2022, 12:24, David Wang, ITW, Standard Operation, , , ITW HV test without mdoule.
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Carla did the test. and reported the result as following: HV testing of ITW is complete. It was pretty well behaved up to 59.5kV, and sat at
59kV for 30mins with no sparks (that EPICS caught). There was some strange behaviour of the current between 51kV and 53kV - it was jumping by 20uA or
more - but there didn't seem to be any voltage response, and it went away after 53kV (though it returned on the way back down). The test was done in Feb |
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Thursday, February 10, 2022, 12:42, David Wang, ITE, Standard Operation, , , ITE HV test woithout mdoule was done.
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Carla did the test. That is what she wrote in Feb 04th: "I am done with the HV testing at ITE - the
results were the same as at ITW. It stayed at 59kV for 30 mins with no issues. Trying to go above 59.5kV is probably possible but a bit more risky. ITE
also has a band, from 54-56kV, where the current jumps around like crazy". |
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Thursday, February 17, 2022, 13:24, David Wang, Spent Target Vault, Maintenance, , UCx #34, Repackage of UCx #34in NHC.
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UCX34# in pail 258(Vault lot 7C) has been repacked today. It is an investigation to find a possible leak source of radioactive Iodine in vault. The new
pail number is 268. It is back to vault 7c . I wrote down the information in log book. The job is smooth today. I retrieved UCx 34 old pail and liner
to TH. The liner from UCx#34 only has 3000 counts. I bagged it. It could be used later. However, the pail has 500K counts contamination on bottom |
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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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Tuesday, March 01, 2022, 11:51, David Wang, Spent Target Vault, Maintenance, , , UCx #32 has been repacked in NHC.
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UCx 32# P2N target in vault slot 1B is repacked is morning for Ferran to take out his samples( in two small plastic containers) stored in pail last
July when Chad did the spent target job. The job went well. Old pail # is 254# and new pail # is 233. It is put back to 1B in vault. |
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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. |
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Thursday, April 28, 2022, 08:16, David Wang, ITW, Standard Operation, TM2, , Annual ITW water signal interlocks check .
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Annual ITW water signal interlocks check was done with TM2 in ITW. Water signal interlocks on all water circuits related to TM and 2A beam
lines in ITW work fine. |
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Wednesday, May 25, 2022, 13:23, David Wang, ITE, Standard Operation, TM4, , Annual ITE water signal interlocks.
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| Annual ITE water signal interlocks check is done with Rob Shank. All ITE water signal interlocks work fine. |
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Wednesday, June 22, 2022, 09:03, David Wang, ITE, Standard Operation, TM4, UCX37# P2N, Remotely removed TM2 from ITE to NHC
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| TM2 with UCx#37 P2N target was removed from ITE to NHC yesterday morning. The move is good. |
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Wednesday, June 22, 2022, 09:14, David Wang, South Hot-Cell, Standard Operation, TM2, SiC#42 and SiC#43. , Three of TM2 moves related to SiC#42 to SiC #43 target switching job.
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Monday morning June 20th: TM2 with SiC # 42 was moved from ITW to NHC.
Monday afternoon: TM2 with no target was moved from NHC to SHC due to 10 pin connector guide pin loose issue. The guide pin has to be moved out
in SHC due to NHC manipulator configuration limit . |
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Thursday, June 23, 2022, 13:04, David Wang, Conditioning Station, Standard Operation, TM4, Ta#64, helium pressure test on TM4 HS line.
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With Ta#64 installed , TM4 HS line was helium pressure tested at TCS. base leak rate is 0.0XE-9 atm.cc/sec. HS line tested leak rate is 3x E-7 atm.cc/sec
on 5 minutes 50 psi helium testing. Leak check result wasgood at NHC by helium spray method. We decided to apply water to HS and all other water lines
still. The vacuum status is closely being watched. So far, TCS pumping down trend is still good. HS line supply water valve was switched on and off couple |
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Thursday, August 11, 2022, 09:10, David Wang, Conditioning Station, Standard Operation, TM4, SiC #44, HS line helium pressure test. Gas line fitting on module top and gas line leak check.
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HS line helium pressure test is done at TCS. No leak. I also leak checked gasline adapter and fittings on TM4 top. No leak. 1/4 copper gas line
between module and ITE was leak checked yesterday. It is good. |
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Thursday, September 08, 2022, 09:06, David Wang, Conditioning Station, Standard Operation, TM2, UCx#39, HS line helium pressure test.
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| TM2 with UCX#39 HS line helium pressure test is done at TCS. 70 psi helium 3minutes. No leak @0.0XE-9 atm.cc/sec. |
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Wednesday, October 05, 2022, 09:31, David Wang, Conditioning Station, Standard Operation, TM4, C#4, HS line helium pressure test. TM4 with C#4 at TCS.
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| TM4 HS line helium pressure test is done. 70psi helium pressure@ 3XE-8 atm.cc/sec . No leak. |
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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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Thursday, November 03, 2022, 13:15, David Wang, Conditioning Station, Standard Operation, TM2, UCx#40, HS line helium pressure test. TM4 with UCx#40at TCS.
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| Helium 70 psi. tested 5minutes at base leak rate 0.9 xE09 atm.cc/sec on HS line. No leak. |
Friday, January 06, 2023, 10:38, David Wang, ITW, Standard Operation, TM2, , ITW/TM2 vacuum vessels leak check and TM2 internal cooling lines helium pressure test. 
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ITW
and TM2 primary and secondary vacuum vessel leak check is done. Leak detector is connected to ITW TP1. Base leak rate on leak detector is 0.0 x E-9
atm.cc/sec. See attachment for the result. No big issue. Two old leaks we found last year at location D and E disappeared in this check. |
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Tuesday, January 24, 2023, 07:17, David Wang, ITE, Standard Operation, TM4, UCx#41, TM4 water lines helium pressure test 2023.
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TM4 water lines helium pressure test was done yesterday at ITE. All water lines were air purged one day ahead for the test. No leak has been
found on TM4 waterlines during the test. See attachment for detail |
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Tuesday, January 24, 2023, 07:21, David Wang, ITW, Maintenance, , , ITW pit general clean up.
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ITW was cleaned with vacuum canister in Jan 10th. HV cage inside and blue nylon insulators were wiped. Garbage inside the pits
were cleaned out. |
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