 Thursday, January 06, 2022, 13:54, David Wang, ITE, Standard Operation, TM4, , helium pressure test on TM4 internal cooloing lsine at ITE.
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Helium pressure 70 psi. 3 minutes on each circle untill LR on LD is balanced. Base leak rate on LD:0.0xE-9 atm.cc/sec. The result:
A: slowly to1.8Xe-8atm.cc/sec after 2 minutes and balanced there.
B: slowly to 2.0XE-8 atm.cc/sec after 2 minutes and balanced there. |
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Monday, January 10, 2022, 09:31, 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 down. Base leak rate 0.0x E-9 atm.cc/sec on LD. Only 2.8 XE-9 atm.cc/sec leak
has been found on big T tank seal which is very tiny. all other seals are perfect leak free. No concern |
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Monday, January 10, 2022, 12:38, David Wang, North Hot-Cell, Standard Operation, TM2, , TM2 has been moved from ITW to NHC.
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| Travis and Nadia moved TM2 from ITW to NHC this morning. The move is smooth and successful. |
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Tuesday, January 11, 2022, 11:50, David Wang, ITW, Maintenance, , , ITW Exit module 1 side sqaure panel O-ing seal replacement.
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Frank and I replaced ITW Exit module 1 side square service panel o-ring seal. Also, The target module pit top flange o-ring seal in ITW pit is replaced.
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Tuesday, January 11, 2022, 11:51, David Wang, North Hot-Cell, Standard Operation, TM2, , TM2 has been moved from NHC to SMP.
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| TM2( no target ) has been moved from NHC to SMP. The moving is smooth and successful. |
Wednesday, January 19, 2022, 13:26, David Wang, Crane, Standard Operation, , , Inpection of Target module lifting frames ITA0494-1997-01 and ITA0494-1997-02. 
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Tom Gauss inspected two target module lifting frames ITA0494-1997-01 and ITA0494-1997-02.. He certified the use of these two frames. Inspection
tags have been issued and attached to frames. He has inspection record on them. See attachments. |
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Wednesday, January 19, 2022, 13:36, David Wang, Crane, Standard Operation, , , Targe hall crane below hook attachment pins and plates annual inspection.
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Tom Kauss inspected target hall crane below hook attachment pins and plates ITA6550-01. He certified the use of these pins and plates. The inspection
of these pins and plates was in Target hall crane annual check list. It was issued as a calibration index by Isaac Earle in 2022-Feb-08. After inspection,
The inspection tag was issued and attached to pin. Tom has an inspection record on this job. See attachments. |
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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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Wednesday, February 02, 2022, 11:05, David Wang, Crane, Standard Operation, , , Target hall overhand crane annual insepection.
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Tom Kauss finished target hall overhead crane annual inspection today. The crane works fine. He issued new inspection tag and e-logged the job.
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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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Tuesday, February 15, 2022, 11:18, Frank Song, Cooling, Repair, , , Replace 2 leak valves on high active water system
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The valves #V10 & V11 beside high active water pumps were replaced in Target Hall, pics attached.
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Wednesday, February 16, 2022, 15:19, Frank Song, Cooling, Repair, , , high active cooling water valves repaired/replaced
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A 3/8 inch drain valve on return cooling line was replaced in ITE. In the meantime two 1/2 inch valves labeled FEBIAD COIL and ENTRANCE COLLIMATOR
RETURN at ITW were replaced . The 2 inches leaky supply/return water valves in ITW were repaired as well. Pls check pics
attached here for detail. |
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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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Friday, February 25, 2022, 10:22, Adam Newsome, South Hot-Cell, Development, , , Addition of E-Stops and Turntable Vertical Motion Limit Switch
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Two changes have been made to the control system to the South Hot Cell:
Addition of two emergency stop buttons: one located in the Target Hall on the wall adjacent to the hot cell, and one located on the
control panel adjacent the operator station.
Addition of limit switches to the turntable's vertical drive system to prevent over-travel at |
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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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Monday, April 04, 2022, 10:44, Nadia Jorgenson, South Hot-Cell, Repair, , , Turntable Chain Repair
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Last week we repaired the South Hot Cell turntable chain/sprocket. Chain was loose
and there was a few section where the chain was not lining up properly with the sprockets.
3 issues were discovered: |
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