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New entries since:Wed Dec 31 16:00:00 1969
ID Date Authordown Category Type Module Target/Number Subject
  1552   Wednesday, June 07, 2017, 13:34 David WangConditioning StationStandard OperationTM2 TM2 and TCS vacuum system has been connected.

I started all turbo pumps.

  1553   Thursday, June 08, 2017, 07:37 David WangConditioning StationStandard OperationTM2 Helium pressure test on TM2 water llines at TCS.
  The helium pressure test on HS line is done at TCS this morning. I got the same result as last time when we helium pressure it it with first target in April. The leak  rate on this line is 1.8 XE-7atm.cc/sec. So, we know this leak is mostly on the line, but not on the VCR joints connecting the target.  See attachment for last time(April) checking e-log. The leak could be from water block which is same as other lines. I do not think this leak rate will affect the operation.

The attachment can not be opened for some reasons. Please check TM2 leak check  2017-03-13 e- log for last time test result and comment.

Attachment 1: TM2_helium_pressure_test..png
TM2_helium_pressure_test..png
  1554   Thursday, June 08, 2017, 08:35 David WangConditioning StationDevelopmentTM2 TM2 gas line reconfiguration on the module top.

Reconfigured TM2 gas line on the module top. It matches with the febiad gas line we are using on service tray now. Facing the module, both of them should be that right side line of two SST lines on feed-through. The gas line on TM2 was leak checked with a blind cap installed on service tray side and LD connected on module top this Tuesday. It is leak free with helium spray on the top of module and service tray.

Attachment 1: TM2_gas_line_on_the_top_002.JPG
TM2_gas_line_on_the_top_002.JPG
  1559   Tuesday, June 13, 2017, 13:41 David WangITWStandard OperationTM2 TM2 has been connected in ITW.

Yasmine and I connected TM2 in ITW today. the control page is set to febiad mode. Both gas line in ITW are opened for febiad run. All connections are double checked. Module connection checklist is finished.  All turbo pumps are started now. Everything is good so far. The TM2 is ready for conditioning when the ITW vacuum is good enough.

  1561   Monday, June 19, 2017, 07:29 David WangConditioning StationStandard OperationTM2 Update TH MS project schedule.

Update TH MS project schedule. See attachment 1,2.

Attachment 1: Target_Hall_shedule_132_Apr_to_Sep.pdf
Target_Hall_shedule_132_Apr_to_Sep.pdf
Attachment 2: Target_Hall_shedule_132_Apr_to_Sep.mpp
  1563   Friday, June 23, 2017, 12:08 David WangCraneRepair  TH crane inspection and probem fixing by Gordon crane

Gordon crane technician Peter came in today and checked TH crane. Maico and I were there with him. What he found is that brake gap on both side of main hoist decreased after months of using.  The solution is to lock the automatic self adjustment system so the gap will be fixed there. Each year during annual inspection, they will adjust the gap manually. After he locked both side of device, I tested the crane up and down couple of times. The brakes work fine. 

  1568   Tuesday, June 27, 2017, 10:26 David WangSouth Hot-CellStandard OperationTM4Ta#52Leak check on TM4 HS line at SHC

LD base LR:0.0Xe-9 atm.cc/sec. No leak has been found during the check.  The HS line will be helium pressurized at TCS this week.

Helium pressurized the HS line at TCS. 70 psi 2 minutes, 0.0 x E-9 atm.cc/sec. No leak.

  1569   Tuesday, June 27, 2017, 14:34 David WangConditioning StationStandard OperationTM4 TM4 vacuum has been connected at TCS

Turbo -pumps are started . The vacuum looks good so far.

  1571   Wednesday, June 28, 2017, 10:00 David WangConditioning StationStandard OperationTM4Ta#52TM2 has been connected at TCS

I started TCS water system.

  1574   Thursday, June 29, 2017, 11:55 David WangConditioning StationRepair  TCS HV cable and feed through installation

John Chow and I installed new TCS HV cable and feed through with their mounting panel back to TCS Faraday cage this Tuesday. ECO-4269 has been issued for the new cable feed through and mounting panel.

  1580   Monday, July 10, 2017, 10:19 David WangConditioning StationStandard OperationTM4 Turned off TCS water system

Prepare for TM4 move tomorrow morning.

  1590   Wednesday, August 02, 2017, 15:09 David WangITWStandard OperationTM2 TM2 was disconnencted in ITW yesterday.

Tm2 was disconnected in ITW yesterday. ITW EL cable crimp ring was broken. John Chow replaced this ring this afternoon.

  1591   Wednesday, August 02, 2017, 15:13 David WangSouth Hot-CellStandard OperationTM2 SHC, TM2 leak check on HS line.

HS line is leak checked at SHC this afternoon by helium spay.  Leak detector base LR 0.0 XE-9atm.cc/sec. Base pressure 0.0Xe-4 torr. No leak has been found. This line will be helium pressured  at TCS. It had  a 1.7XE-7 atm.cc/sec leak rate on 70 psi helium at TCS  during last two target  checks.

 2017-08-03. Helium pressure test on TM2 HS line at TCS is done. 70psi helium, 3 minutes. base leak rate 0.0xE-7 atm.cc/sec. Result: 1.8XE-7atm.cc/sec leak which is almost same as before. This line has a very small leak on water block seal under helium pressure test  which we knew already. 

  1606   Tuesday, August 29, 2017, 08:59 David WangConditioning StationStandard OperationTM4 TM4 HS line leak checks

TM4 HS line leak checks are done, at SHC and TCS. SHC: Helium spray. TCS: Helium  pressurize 70psi.  LD base LR 0.0 X E-9 atm.cc/sec.  No leak has been found on both leak checks. 

  1607   Tuesday, August 29, 2017, 09:01 David WangConditioning StationStandard OperationTM4 TM4 has been connnected at TCS.

TM4 has been connected at TCS. TCS water system has been started for TM4. TM4 and TCS vacuum pumping down is good so far.

  1609   Tuesday, September 05, 2017, 06:33 David WangConditioning StationStandard OperationTM4 Turned off TCS water system and vacuum system.

Argon vent and disconnect TM4 at TCS.

  1612   Friday, September 08, 2017, 14:08 David WangConditioning StationRepairTM3 TCS and TM3

TM3 is located at TCS and it is pumping down now. TCS water system has been started.  All TCS water lines for TM3 module internal cooling are bypassed and looped at TCS top ground plate. Water only supply to TCS high  current conductors.

  1613   Wednesday, September 13, 2017, 10:05 David WangConditioning StationRepairTM3 Switch off TCS water system and vacuums

Preparing vent the TCS/TM3. We will remove TM3 service tray cover plate  after venting.

  1614   Wednesday, September 13, 2017, 16:05 David WangConditioning StationRepairTM3 remove Tm3 service tray cover plate

TM3 service tray cover plate has been removed. It is bagged and placed to TH b2 level south wall beside the silo.

  1615   Wednesday, September 13, 2017, 16:13 David WangConditioning StationRepairTM3 TCS turbo pumps are started.

TCS and TM3 all vacuum pumps are started. Everything is fine.

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