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  RH-ISAC, Page 68 of 139  Not logged in ELOG logo
ID Date Authordown Category Type Module Target/Number Subject
  181   Tuesday, September 18, 2012, 13:41 David WangSouth Hot-CellStandard OperationTM1Nb#7leak check heat shield circuit

Chad and i did a leak check on TM1 heat shield circuit with new Nb#7 target installed. It took about 5 mins pump down the circuit to leak rate 0.0x E-9atm.cc/sec and 0.0x E-4 torr on leak detector.

All vacuum lines and joints which connected to the leak detector had been helium sprayed and they are leak  tight. Chad sprayed helium on each VCR joints for 2 seconds every time. During 45sec waiting time, there is no any response on leak detector. Chad repeated same test again for double checking and we got same result. Chad finally flushed the helium around the target heat shield for 10 seconds.we waited for 45minute and found no response on the leak detector. The heat shield circuit is leak tight at this stage. I will do a helium pressure test on this circuit when TM1 is in CS and under vacuum.

  186   Thursday, September 20, 2012, 09:16 David WangConditioning StationStandard OperationTM1Nb#7TM1 Nb#7 target heat shield helium pressure check is done.

Leak detector pumped down to base LR1.3xE-9 atm.cc/sec, and BP 8xE-3 torr. All high vacuum gauge readings at CS and TM1 are at low -6 range from 1.2xE-6torr to 4.6x E-6 torr. Applied 80 psi helium  to heat shield circuit for 5minutes and there is no any response on leak detector. The heat shield circuit is leak tight.

  188   Tuesday, September 25, 2012, 14:33 David WangITWStandard OperationTM1Nb#7TM1connected in ITW

TM 1 is in ITW now. All connections are done. The turbo pumps had been started this afternoon. The vacuum looks good so far. The water interlock check which related to TM1 are done. They are good. All TM1 water signals are visually checked and they are strong.  The rest interlock check ( MCR XT page) will be finished before shielding blocks moving. The MAA is locked and ITE is ready for proton beam.        

  189   Thursday, September 27, 2012, 09:13 David WangITERepairTM4 ITE MSP water circuit flow wheel had been replaced

ITE MSP water circuit flow wheel was replaced yesterday due to poor performance.

  190   Tuesday, October 02, 2012, 11:47 David WangITWStandard OperationTM1Nb#7I moved 5 shielding blocks from ITE to ITW.

5 shielding blocks have been moved from ITE to ITW. ITW is configured to take proton beam now.

  191   Thursday, October 04, 2012, 11:06 David WangConditioning StationRepair  Replace conditioning station scroll pump in target hall

Grant and I replaced the conditioning station broken  srcoll pump with a refurbished scroll pump which is supplied by vacuum group. The replaced pump is bagged and waiting for RPG further survey in target hall . The target hall is survey after the job, and everything is fine.

  192   Tuesday, October 09, 2012, 10:35 David WangITEStandard OperationTM4NiO #1Disconnected TM4 in ITE.

I disconnected TM4 in ITE this morning. The heat shield circuit has been purged with air.

  196   Tuesday, October 16, 2012, 07:14 David WangConditioning StationStandard OperationTM4UCX#5TM4 heat shield helium pressure test and electrical check at CS

TM4 heat shield helium pressure test and electrical check were done  at CS  last week. The results are good. NO leak had been found on heat shield circuit.The electrical check is also good.

  199   Wednesday, October 31, 2012, 11:24 David WangITEStandard OperationTM4 Transfer five shielding blocks from ITW to ITE.

Bevan and I transferred five shielding blocks from ITW to ITE. ITE is ready for taking proton beam.

  204   Tuesday, November 06, 2012, 12:08 David WangITWStandard OperationTM1Nb#7TM1 disconnected in ITW

Bevan and I disconnected TM1 in ITW this morning. The TM1 was moved to south hot cell later.   

  208   Wednesday, November 07, 2012, 11:09 David WangSouth Hot-CellStandard OperationTM1TiC TM1 heat shield circuit leak check with TiC target at hot cell

Chad and i did a leak check on TM1(Lp-TiC) heat shield water circuit at south hot cell. There is no leak had been found on it. The circuit  is leak tight at present. I will do  helium pressure check on this circuit at  conditioning station once the vacuum is good enough.

  209   Thursday, November 08, 2012, 08:42 David WangConditioning StationStandard OperationTM1TiC #3TM1 TiC #3 target heat shield helium pressure check is done.

TM1 TiC #3 target  heat shield  helium pressure check  is done at conditioning station. Applied 80 psi helium to HS circuit for 5 minutes . There is no response had been found on leak detector. The leak detector base LR 0.0x E-9 atm.cc/sec, and BP 0.0xE-4 torr. CS and TM1 vacuum are at low E-6 torr range. The HS circuit is leak tight.

  214   Wednesday, November 14, 2012, 10:57 David WangITWStandard OperationTM1 TM1connected in ITW

I connected TM1 in ITW yesterday. Everything is good so far. Travis was with me when i did the job.

  215   Wednesday, November 14, 2012, 11:04 David WangITERepairTM4 Change ITE dump water circiut flow wheel

I changed ITE dump water circuit flow wheel due to its poor performance. The new flow wheel works fine. The signal on electrical board is strong and constant. One shielding block on ITE was moved out for the job, and it has been moved back after the job.The ITE is ready to take proton beam. Travis was with me when i did the job.

  220   Tuesday, December 04, 2012, 13:33 David WangITEStandard OperationTM4UCX#5Disconnected TM4 in ITE.

I disconnected TM4 in ITE. All water lines had been purged.Travis was with me .

  225   Wednesday, January 02, 2013, 12:11 David WangITWStandard OperationTM1 I moved 5 shielding blocks from ITW to block storage area

I moved 5 shielding blocks from ITW  to block storage area for preparing the TM1 disconnection. Air sampled and swiped blocks and ITW and everything is fine.Fiona was with me all the time during the moving.

  226   Thursday, January 03, 2013, 10:05 David WangITWStandard OperationTM1 Disconnected TM1 in ITW.

TM1 has been disconnected in ITW. All  water lines had been purged. Travis was with me during the job.

  229   Thursday, January 10, 2013, 10:40 David WangITWMaintenance  Replaced all high active water system magnetic pedal wheels in ITW and ITE.

I replaced all high active water system magnetic pedal wheels in ITW and ITE. This is a preventive maintenance job we planned for this winter shut down.

  231   Tuesday, January 15, 2013, 10:49 David WangITWStandard OperationTM1no targetTM1 vacuum system connection in ITW

I connected TM 1 vacuum system in ITW. The TM1 and ITW will be pumped out for shut down routine leak check.

  237   Friday, January 18, 2013, 11:17 David WangSouth Hot-CellStandard OperationTM4dummy targetTM4 heat shield circuit leak check with dummy target on.

Chad and i did a leak check on TM4 heat shield circuit with installed dummy target at SHC today. The leak detector is pumped to 0.0xE-9atm.cc/sec.Chad sprayed helium twice on each  VCR joints .There is no any response had been found on the leak detector during each 45 seconds waiting time. The TM4 heat shield circuit with dummy  target is leak tight so far.  

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