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New entries since:Wed Dec 31 16:00:00 1969
ID Date Author Categorydown Type Module Target/Number Subject
  1370   Wednesday, October 12, 2016, 10:00 David WangITWStandard OperationTM2 TM2 was disconnected at ITW

TM2 was disconnected at ITW. 3 water circuits in ITW gave been looped to keep 75 GPM water flow to ITW. HS line was purged at HS. RPG got the water sample.

  1383   Tuesday, October 25, 2016, 15:10 David WangITWStandard OperationTM2 TM2 has been connected at ITW

All turbo pumps are started. Two gas valves for Febiad run are opened. Pumping down is good so far.

  1410   Tuesday, November 29, 2016, 12:57 David WangITWStandard OperationTM2 TM2 is connected in ITW

All turbo pumps are started. Water system and water signals have been checked. Pumping down on ITW and TM2 is good so far.

  1411   Tuesday, November 29, 2016, 14:50 Travis CaveITWStandard OperationTM2UC#18module moved

TM#2 with UC#18 has been moved to ITW from the conditioning station.

  1413   Saturday, December 03, 2016, 10:01 David WangITWRepairTM2 venting ITW and TM2 with argon.

A short between TM2 EE and bias is produced yesterday during tube heater ramp up.  Alex asked for an argon venting on ITW to see if the problem could be solved by venting and pumping down yesterday.  I set up argon venting system in electrical room and started the venting at 8:30 AM this morning.  It will take 5 hours to vent the ITW to 760 torr(mechanical gauge reading).  The venting system pressure is set as 2 torr. A pressure relieve valve is installed into ITW venting line to prevent station over venting. The argon bottle  valve in electrical room will be closed by isac opps after 5 hours venting.

  1415   Monday, December 05, 2016, 10:10 David WangITWStandard OperationTM2 Five shielding blocks have been transferred from ITE to ITW.

The ITW is configured to take proton beam.

  1419   Thursday, January 12, 2017, 14:24 David WangITWStandard OperationTM2 ITW primary and secondary vacuum vessel winter shut down leak check.

TM2 is located in ITW for this leak check. Leak detector is installed between ITW BV2s as before. LD base leak rate 0.0XE-9atm.cc/sec, base pressure 0.0XE-4 Torr. First , I leak checked dump module top flange seal which a small leak was found in last year winter shut down. This time,all ITW  turbo-pumps cooling fans are switched off during the check. Lots helium are sprayed around the dump module top flange this time. I did not see any response on LD.  The check is repeated 3 times. The results are same. There is no leak has been found on ITW dump module top flange seal at this moment. The  further confirming check will be repeated  when TM2 is moved back to ITW with dummy Febiad target  at the end of this month. The rest check result:  1 small leak(1.2 xE-8 atm.cc/sec) is found on one TM2 blue nylon bottom o-ring. This o-ring will be replaced when module is moved out of ITW.  It will be an easy job. Another small leak( 1.1XE-8 atm.cc/sec) is found on exit module 1 service cap top plate to frame o-ring seal. Its location is on east-south side of the exit module 1.This side is close and parallel to exit module 2 west-south side. Vacu- seal sprayer is used to fix this problem.  After two times spray, the leak is disappeared. This is not a permanent fix. The big top plate o-ring replacement is a complicate and dose taking job. It need to be well planned. The leak rate is small, and the leak source is close to ITW TP3 so there is no rush to replace the big o-ring on exit 1 service cap top plate at this moment. But, we need to close watching on this issue and have a job plan for this o-ring replacement since it could get worse in the future. There is no leak has been found on big T tank seal this year as well. All other primary and secondary vacuum seals  in ITW are good. TM2 water lines helum pressurize will be fulfilled In ITW or at TCS later. I will update this e-log when further test are finished.

 2017-01-25:  The O-ring on 60KV bias blue nylon stand is replaced at TCS. I leak check it. It is perfectly good now.

  1420   Monday, January 16, 2017, 09:32 David WangITWStandard OperationTM2 Helium pressure test on TM2 water llines at ITW

TM2 helium pressure test result at ITW. 70 psi helium 3 minutes on each circuit. LD base LR0.0XE-9atm.cc/sec  BP 0.0XE-4torr.  ITW IG1 1.22Xe-7 torr, ITW IG1S 1.31XE-7torr, ITW PNG4 2.66XE-6Torr(ITW TP4 off).

 

  2017-01-13 (atm.cc/sec) 2017 mini shut down
HS 0.0 x E-9  
Window 0.0 x E-9  
EE 2.7 x E-9  
Ta+ 2.2 x E-9  
Ta- 6.6 x E-9  
Tube- 1.3 x E-8  
Tube+ 2.8 x E-8  
Coil 2 2.8 x E-9  
coil 1 7.1 x E-9  
MSP 6.7 x E-8  
GE leak , no test  

All number are getting better comparing to last time check. All ITW vacuum readings are very good. ITW PNG4 was in low E-7 torr range also. At present, it is in low E-6 range due to ITW TP4 switching off.  The TM2  water line seals  are stable and reliable for 2017 beam run. The same check will be repeated  in 2017 mini shut down.

  1427   Tuesday, January 24, 2017, 15:32 David WangITWStandard OperationTM2 TM2 was moved from ITW to SHC this morning.

The move is smooth. Yasmine and Travis did the move.

  1434   Tuesday, February 07, 2017, 10:34 David WangITWMaintenance  ITW clean up

ITW has been cleaned up today.  All station are vacuum cleaned. I wiped all HV cover and HV area including conductors and insulators. The black foams which are used to wrap around TP back up line are degrading now. I removed most of these foams. Also, Some obsolete  water lines  are moved our of station. All waste are bagged . they will be surveyed and  stored(or disposed) according to radio-active level.

  1445   Tuesday, March 07, 2017, 09:25 David WangITWRepair  ITW HALCW 2" return line ball valve seals replacement.

Leaking seals on ITW HALCW 2" return line ball valve have been replaced. 8 liter waters are drained out for this job. Water are drained into a thick plastic bag.  The bag is tie strapped , labeled, and put into a yellow garbage bin in MAA. Water sample is given to RPG. After analyzing, RPG will give instruction on how to deal with it. Since we just refilled NALCW to system before this job, the active level on sample is very low. We may dump them into active sump.  After seals change, The system is refilled . I started pump and set everything back to normal configuration. NO leak has been found on new seals. The HALCW system is operating good so far.

  1505   Wednesday, April 26, 2017, 10:24 David WangITWStandard OperationTM2 TM2 ITW

TM2 was moved and connected in ITW yesterday afternoon. After roughing down, ITW turbo pumps are started. ITW TP4 can not be started to full speed. ISAC ops kept it at low speed mode with less than 1.0A current draw on pump. ITW IG1s shows red as well. I will take a look on them today when beam is off.

 

  1549   Wednesday, May 24, 2017, 08:11 David WangITWStandard OperationTM2 TH schedule 132 update weekly

See attachments.

Attachment 1: Target_Hall_shedule_132_Apr_to_Sep.mpp
Attachment 2: Target_Hall_shedule_132_Apr_to_Sep.pdf
Target_Hall_shedule_132_Apr_to_Sep.pdf
  1557   Tuesday, June 13, 2017, 09:57 Travis CaveITWStandard OperationTM2SiC#36module moved

TM#2 with SiC#36 has been moved from the conditioning station to the west target station.

  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.

  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.

  1595   Tuesday, August 08, 2017, 13:26 Travis CaveITWStandard OperationTM2Ta#53module moved

TM#2 with Ta#53 has been moved from the conditioning station to the west target station.

  1598   Tuesday, August 15, 2017, 09:30 Anders MjosITWStandard OperationTM2Ta#53TM2 radiation fields

Travis Cave wrote:

TM#2 with Ta#53 has been moved from the conditioning station to the west target station.

 by Travis (measured at ~ 2' from module on service tray side):

at 3' 325 uSv/h

at 2' 640 uSv/h

  1633   Tuesday, October 03, 2017, 09:29 Travis CaveITWStandard OperationTM2Ta#54Module move

 TM#2 with Ta#54 has been moved from the conditioning station to the west target station.

  1634   Thursday, October 05, 2017, 11:04 Anders MjosITWMaintenance  Installation of new valve for module move ventilation

David installed the new ball valve and connections for the SAS project module move ventilation. SASP0482. Drawing reference ISK5029B.

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