 Friday, January 10, 2020, 10:26, David Wang, ITE, Standard Operation, , , ITE water signal inerlock check.
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ITE water signal interlock check is done. Everything is good. It is a annual check we do in winter shut down time. |
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Tuesday, January 14, 2020, 10:12, David Wang, Conditioning Station, Standard Operation, TM3, , Helium spray leak check on TCS.
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Using a long pole with a probe to spray helium on TCS vacuum seals and joints which are installed in TCS service pit. No response has been found on leak detector during leak check. TCS is leak free. |
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Tuesday, January 14, 2020, 10:19, David Wang, Conditioning Station, Standard Operation, TM3, , TCS vacuum system is switched off.
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TM3 TP1 and TP2 work fine in past 4 days. During operation, The current draw on pumps were 0.7A to 0.8 A. TM3 will be moved back to silo tomorrow. |
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Friday, January 24, 2020, 08:19, David Wang, ITW, Standard Operation, TM4, , ITW water signal interlock check.
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ITW water signal interlock check is done. Everything works fine. ITW 2A2 tank water signal is broken and is not ok on XT2A2 page. I will fix it next week. |
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Monday, January 27, 2020, 10:40, David Wang, Cooling, Maintenance, , , ITE/ITW supply water presuure on dump circuits.
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With both stations in operation,ITE dump supply gauge reading is 27 psi. ITW is 20 Psi. I adjusted ITW dump pressure to 25 psi by changing the return line side pressure relieve valve.
ITE full operation+ ITW no TM: ITE dump pressure 27psi, ITW dump pressure 27psi.
2019-01-30: Water only supply to 2A beam lines only on both side, No TM2 and TM4 in water loop. ITE dump pressure 27psi, ITW dump pressure 27psi. |
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Wednesday, January 29, 2020, 12:37, David Wang, ITE, Standard Operation, TM2, , ITE primary/secondary vacuum vessel leak check.
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Leak check on ITE vacuum vessel is done. LD base leak rate 0.0XE-9atm.cc/sec. base pressure 0.0Xe-4torr. Sprayed helium on all ITE primary and secondary vacuum vessel seals(including TM2). No leak . Also,70psi helium pressurized TM2 waterlines inside the module for each circuit 3 minutes. No leak on all operating TM2 waterlines. |
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Thursday, January 30, 2020, 10:22, David Wang, ITW, Standard Operation, TM4, , TM4 water lines helium pressure leak check.
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TM4 internal water lines helium pressure leak check at ITW : 70psi helium 5 minutes on each circuits. Base leak rate 0.0X E-9 atm.cc/sec. Base pressure 0.0X E-4torr. Only B line(Oven -) has a tiny 1.5Xe-9 atm.cc/sec response on LD during the check . All others all perfect good. |
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Thursday, January 30, 2020, 12:06, David Wang, ITW, Standard Operation, TM4, , ITW primary and secondary vacuum seals leak check.
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Connected LD to ITW(TM4) TP1. Base LR 0.0Xe-9 atm.cc/sec. Base pressure 0.0Xe-4 torr. All ITW primary and secondary air to vacuum seals are helium spray checked. There is a 5XE-9 atm.cc/sec leak on exit2 module top cover plate o-ring seal. The location is on west side, south corner of the plate. Hi- vacuum resin are sprayed to leak area, and leak checked again. The leak is gone. The other seals on ITW vacuum vessel are good.
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Monday, February 03, 2020, 09:10, David Wang, ITW, Standard Operation, TM4, , ITW TPs are switched off. started of ITW argon venting.
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ITW is argon venting now.
Argon venting of ITW is done. It took about 4.0 to 4.5 hours to vent the ITW with 2-3 psi argon. The CG4 and CG4S showed 35 to 36 torr on epic page when mechanical gauge is 760torr in electrical. Argon gas bottle is closed in electrical room. |
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Wednesday, February 05, 2020, 10:49, David Wang, Conditioning Station, Standard Operation, TM4, , Remove of TM4 from SHC to TCS.
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TM4 has been moved from SHC to TCS. No target on module. The move is successful. |
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Wednesday, February 05, 2020, 10:54, David Wang, Conditioning Station, Standard Operation, TM4, , Roughing out TM4 at TCS.
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TCS MP1 is started to rough out TM4 and TCS. TCS and TM4 will be under roughing only today and tomorrow. No plan to start TCS and TM4 turbo pumps this time. |
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Thursday, February 06, 2020, 13:32, Adam Newsome, South Hot-Cell, Maintenance, TM4, , TM4 moved from Conditioning Station to South Hot Cell
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TM4 was moved from conditioning station to south hot cell in preparation for wiring replacement. No target. |
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Friday, February 07, 2020, 08:05, chad fisher, South Hot-Cell, Development, TM4, , Containment box off for IGLIS
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The containment box has been removed from TM4 in prep for the IGLIS wiring job. |
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Friday, February 14, 2020, 14:06, David Wang, Conditioning Station, Standard Operation, TM4, , TCS vacuum system and water sytem are switched on.
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All turbo pumps are started. |
Friday, February 14, 2020, 14:13, David Wang, South Hot-Cell, Standard Operation, TM4, , SIS dummy target for IGLIS TM4 electrical check 
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Electrical check and HS, window leak check result at SHC. See attachment. |
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Thursday, February 20, 2020, 09:27, David Wang, Spent Target Vault, Standard Operation, , , Inventory of mini storage and vault.
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Repacked nSiC#1 in SHC and moved it to mini storage vault. Transferred UCx26 and UCx28# from vault to mini-storage. See attachment for vault and mini-storage inventory. |
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Wednesday, February 26, 2020, 08:45, David Wang, Conditioning Station, Standard Operation, TM4, , Remove of TM4 from TCS to SW silo
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TM4 has been moved from TCS to SW silo. The move is fine. |
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Thursday, February 27, 2020, 10:37, David Wang, Safe Module Parking, Standard Operation, TM2, , Start of SMP vacuum pump.
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TM2 in SMP with old SiC #39 target on it. SMP vacuum pump is started. |
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Thursday, February 27, 2020, 16:08, Anders Mjos, North Hot-Cell, Maintenance, , , Hot Cell Entry
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Chad entered the NHC today to tighten set-screws on both slave side manipulators and re-align the West side slave. Work took place using the HC Confined Space Entry procedure. See attached checklist. WP I2020-02-27-4 |
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Friday, February 28, 2020, 09:36, David Wang, ITE, Repair, , , Entrance module TP1S broken piesces clean up.
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Using the camera, Frank and I inspected the broken blades in vacuum duct bending section. We are pretty sure some of the broken parts are fallen into bottom of entrance module and vacuum vessel since the broken pars are over on the edge of bending section. The blades rotated at high speed. Basically, They were shoot to the duct opening when they were broken from the pump. Frank and I carefully swiped all broken parts from the edges back to center of duct first. Then, We use vacuum cleaner sucked all broken parts out of the entrance module. We can see lots aluminum dust during the clean up. This kind of aluminum dust also could fallen down to bottom of module and vessel. After clean up, We inspected duct with camera. We can see all broken pieces and dust are cleaned out. The removed broken pieces will be stored with broken pump when the vessel bottom clean up is done. |
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