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  RH-ISAC, Page 79 of 138  Not logged in ELOG logo
ID Date Author Categorydown Type Module Target/Number Subject
  28   Wednesday, September 28, 2011, 09:07 Travis CaveITEStandard OperationTM4Ta#36Move of TM#4 from East target station to south hot cell.

Move of TM#4 with Ta#36 from East target station to south hot cell, move went well.

  67   Monday, January 09, 2012, 14:44 David WangITEMaintenanceTM4 ITE and TM4 2012 winter shut down leak check is completed.

I did a vacuum leak check on all ITE primary vacuum vessel and secondary vessel.I also did a helium pressure test(80psi ) on all TM4 water lines. There is no leak has been found.ITE and TM4 are both leak tight now.

ITE primary vacuum vessel and TM4 waterlines:

Hooked leak detector after TP1 between BV1. leak detector base pressure :0.0xe-4 torr. base leak rate:1.8x e-8 atm.cc/sec.sprayed helium around all TM4 and exit 1 ,2 module primary vessel including all flanges,  gauges, bellows,turbos,blank offs,etcThere is no  any response  on leak detector. All water lines  had been pressurized with 80 psi helium  for 5 minutes. The leak rate always stayed at 1.8xe-8 atm.cc/sec which is the base leak rate  on ITE this time, and no vacuum pressure change also.The TM4  water lines and ITE primary vacuum vessel are leak tight.

ITE secondary vacuum vessel:

Hooked leak detector after TP1S between BV1S. Leak detector base pressure :0.0xe-4 torr.Base leak rate:0.0xe-9 atm.cc/sec. Sprayed helium around all TM4,EXIt 1,2  module secondary vessel including alll flanges,gauges, air cylinders , valves, and blank-offs.There is no any response on leak detector . tThe late rate  kept at 0.0XE-9 ATM.CC/SEC, and no pressure change either.The ITE secondary vacuum vessel is leak tight.

  70   Thursday, January 12, 2012, 14:32 David WangITERepairTM4 TP2 on TM4 has been replaced

TP2 on TM4 has been replaced with a new turbo pump , I didnt  reset the controller in electrical room.So this new pump start to run at 8083 hours on ITE TP2 controller. The new TP2 pump properly  started. It works fine now.

  71   Monday, January 16, 2012, 09:30 David WangITEMaintenance  Changed all old inducion coils for flow sensors in ITE

I had changed all old induction coils for flow sensors in ITE .I checked all ITE water signals on control boards in electrical room.They are all very stable and constant.All ITE inductions coils work fine now.

  81   Thursday, April 05, 2012, 10:30 David WangITEStandard OperationTM4 I moved 5 shielding blocks back to ITE this morning.

 MAA is secured .The ITE and MAA are ready for taking proton beam now.

  95   Thursday, April 26, 2012, 09:23 David WangITERepairTM4 changed flow wheel on ITE TM4 contaiment box water circuit

The the magnetic field on ITE TM4 flow wheel  was gone yesterday.So there is no water signal on this circuit. The water flow is fine ,and the wheel is rotating. I removed 1 shielding block on ITE and replaced the old wheel with a new one.Now the containment box water signal is normal.The problem is fixed.The shielding block is back.

  96   Thursday, April 26, 2012, 13:01 David WangITERepairTM4 Replaced TM4 EE water flow wheel in ITE.

Due to weak magnetic field on TM4 EE water flow wheel, we have two times intermittent water signal on this circuit this morning. I replaced the old wheel with a new one in ITE. I checked the signal frequency and strength.It looks fine now.

  98   Tuesday, May 08, 2012, 10:28 David WangITEStandard OperationTM4 Disconnected TM4 in ITE.

I disconnected TM4 in ITE. The heat shield water circuit is purged. I  closed the water supply to ITE.Now, the water system only supply water to ITW and the system pressure is 110 psi which is good.I visually checked S-tank sight glass,and the water level is stable comparing to last week. Also, I visually checked the ITW water signals  strength and stability on electrical panel from electrical room.Everything looks fine.

  99   Monday, May 14, 2012, 12:37 Travis CaveITEStandard OperationTM4SiC#26module move

TM#4 with SiC #26 was moved from the East Station to the South Hot Cell. Bevan was at the helm of the PLC. There was no issue with the move.

  110   Tuesday, May 22, 2012, 10:50 Travis CaveITEStandard OperationTM4SiC#27module moved

Module has been moved from conditioning station to the east target station. Move went well.

  111   Tuesday, May 22, 2012, 12:36 David WangITEStandard OperationTM4sic 27TM4 connection in ITE

All TM4 connections in ITE is done. The station and TM4 is under roughing now.

  112   Tuesday, May 22, 2012, 15:19 David WangITEStandard OperationTM4sic 27TM4 in ITE under pumping

  I started 6 turbo pumps this afternoon. The TM4 and ITE are under pumping now. The vacuum is fine so far. We will see a better picture tomorrow morning. In order to keep the system pressure at 90 psi, I just turned on all the water to TM4 circuits. The water interlock check which related to TM4 water circuits is all done. I will do the rest part (XTpage related to 2A beam) next week once I turn on all the water to ITE. The ITE and TM4 will be ready for HV conditioning once the vacuum is ok.

                    

  114   Monday, May 28, 2012, 13:05 David WangITEStandard Operation  I moved 5 shielding blocks from ITW to ITE .

5 shielding blocks have  been transferred from  ITW to ITE. ITE ventilation is opened, and ITW closed. All ITE water  signals have been checked for frequency and strength.They are all good. ITE is ready for taking proton beam.

  136   Tuesday, July 03, 2012, 10:50 David WangITEStandard OperationTM4 Disconnected TM4 in ITE.

I disconnected TM4 in ITE this morning. The window circuit and heat shield circuit had been purged. The general field inside ITE is about 200usv/h.

  144   Monday, July 09, 2012, 10:51 Travis CaveITEStandard OperationTM4UO#3module move

TM#4 with UO#3 from the conditioning station to the east target station. Move went well.

  145   Monday, July 09, 2012, 16:08 David WangITEStandard OperationTM4UO#3ITM4 in ITE connected and pumping down

 TM4 has been moved to ITE and connected there today. I started six turbo pumps this afternoon. One of TP4 back valve (one in pairs) didn’t open .It caused the TP4 difficult to start. I disconnected that control cable that plug to solenoid valve and reconnected it. Then it works fine. After this, TP4 started to normal speed easily. The vacuum readings are OK so far. Tomorrow morning they all should be around 6-7 X E-6 torr range. Water interlock checks related to TM4 have been finished. NO water supply to ITE dump and entrance to keep the system pressure over 90psi. All TM4 water signals are good and strong by watching them from electrical panel. Gas line connected and valves opened. Control page set to fibiad .

  150   Thursday, July 26, 2012, 08:33 David WangITEStandard OperationTM4 I moved 5 shielding blocks from ITW to ITE thisTuesday morning .

  All water interlock checks for ITE had been done. The ITE water signals strength and frequency(Espcially on MSP circuit) had been checked from electrical room, and everything is good.

  165   Thursday, August 30, 2012, 13:57 David WangITEStandard OperationTM4 Disconnected TM4 in ITE.

I disconnected TM 4 in ITE on AUG 29th morning.The vacuum lines stay untouched and they will be disconnected on SEP 04th.

  175   Wednesday, September 12, 2012, 07:00 David WangITEStandard OperationTM4NiO #1ITM4 in ITE connected and pumping down

TM4 had been connected in ITE. Six turbo pump had been started . thepumpming diwn is very good so far. The water interlock check on ITE and TM4 had been finished and everything is good.All water signals are strong and constant by visually checking.

  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.

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