Logbooks Lab Maintenance Evaporator_1 Evaporator_2 Laser cutter Target Production Test-Stand RH-ISAC RH-Cyclotron RH-Meson Hall RH-Beamlines RH-ARIEL
  RH-ISAC, Page 75 of 140  Not logged in ELOG logo
New entries since:Wed Dec 31 16:00:00 1969
ID Date Authordown Category Type Module Target/Number Subject
  746   Wednesday, September 10, 2014, 11:47 David WangITWStandard OperationTM1 TM1 has been connected in ITW.

TM1 has been connected in ITW.  ITW and TM1 turbo pumps have been started. Water is supplied to TM1 only. Everything is good so far.

  749   Tuesday, September 16, 2014, 10:41 David WangITWStandard OperationTM1ZrC #45 Shielding blocks have been transferred from ITE to ITW.

5 Shielding blocks have been transferred from ITE to ITW. The ITW is configured to take proton beam

  751   Tuesday, September 23, 2014, 11:49 David WangITEStandard OperationTM4UCx #10TM4 has been disconnected in ITE.

TM4 has been disconnected and moved to SHC from ITE. ITE was vented with argon before move.

  755   Wednesday, September 24, 2014, 15:03 David WangSouth Hot-CellStandard OperationTM4Ta#44Leak check on TM4 HS water line with new Ta#44 target. at SHC

This morning Chad and I leak checked TM4 HS line with new Ta#44 target installed. I calibrated LD before the check. Before check, the LD base LR 0.0xE-9 atm.cc/sec, base LP 0.0xE-4 torr. Chad sprayed helium on both VCR fittings and did a flush around the target. There is no any response had been found on LD,. The line is good on leak tight. with spray method.  No helium pressure test on the HS line at CS since TM4 was moved back to ITE directly.

  756   Wednesday, September 24, 2014, 15:16 David WangITEStandard OperationTM4Ta#44Reconnected TM4 in ITE.

TM4 has been reconnected back to ITE. I started all turbo pumps on ITE and TM4. The ITE TP4s was extremely difficult to start. This pump is new, and was replaced before  the last ITE beam time on July. After several times try and starting mode switch, it is started. Its temperature and current draw showed on controller and very good after the start. The current draw on ITE TP1s is  s a little bit high and unstable. I will keep watching on ITE TP1s. I think the ITE TP1s is close to the end of the pump life. Other pumps are good so far.  

  759   Friday, October 10, 2014, 10:47 David WangConditioning StationDevelopmentTM3 TM3 has been connected in CS

TM3 has been connected in CS. All water supplies are bypassed theTM3 on the top of the service cap. TM3 TP2 was difficult to start. It is started finally after couple of time try.The pump runs fine now. 

  762   Tuesday, October 14, 2014, 12:19 David WangITWStandard OperationTM1 TM1 was disconnected in ITW.

TM1 was disconnected in ITW this morning. Heat shield circuit is purged.

  768   Monday, October 20, 2014, 08:59 David WangConditioning StationDevelopmentTM3 Started TCS water system.

I started TCS water system this morning to check if the chillers work properly.

  769   Monday, October 20, 2014, 09:13 David WangConditioning StationDevelopmentTM3 TM3 TP2 failed

TM3 TP2 stopped working this morning at 4:00 AM. I tried to start it but failed. On normal start mode , It could not pass 6K RPM. On soft start mode , the pump cant pass 17KRPM. Talked with Anders, We are not going to replace this pump since we are not going to run this module for a while. I will stopped all   vacumm pumps on CS and TM3 this morning.

  773   Wednesday, October 22, 2014, 09:41 David WangConditioning StationDevelopmentTM3 TM3 has been disconnected at CS.

TM3 has been disconnected at CS. It is vented and ready to move.

  778   Tuesday, November 04, 2014, 11:05 David WangSouth Hot-CellStandard OperationTM1ThO#1Leak check on TM1 HS water line withThO#1 installed.

Chad and I leak checked HS line on TM1 with ThO#1 target installed. The LD pumped down to base leak rate 0.0xE-9 atm.cc/sec, base leak rate 0.0xE-4 torr. The pumping down process is normal. Chad sprayed helium on both VCR joints (each for 2 seconds) , and he did a flush spray around the target for 5 seconds. No any response had been found on LD during and after the spray( 40seconds waiting time). The target is leak tight.

  782   Thursday, November 06, 2014, 08:07 David WangITWStandard OperationTM1ThO#1TM1 has been connected in ITW.

TM1 has been connected in ITW. All turbo pumps are started. The pumping down on ITW is good so far. The water is supplied to TM1 for HV conditioning.

  783   Thursday, November 06, 2014, 08:55 David WangITWRepairTM1ThO#1 primary vacuum back up pressureITH CG1 ,CG2,CG4A were high.

I found primary vacuum back up pressure ITH CG1, CG2, and CG4A were unusually high this morning. They should be about 10 -20 mtorr after one night pumping, but all of thier reading were 340-350-mtorr. Thease cause the current draw on primary turbo pumps were all over 2.0A(should be about 1.0A). I let Paul closed all BVs on primary side . The pressure dropped quickly to normal range after all BVs were closed. This shows the back up line are good. The problem are from   one of  the connections  on primary BVs. I let Paul opened the BVs one by one,but the problem did not show again. Now ,the current draw on the turbo pumps are back to normal also.

I will keep monitoring the system and take a look on all KF25 clamps on BVs once I have a chance to access to ITW.

  784   Thursday, November 06, 2014, 13:43 David WangConditioning StationDevelopmentTM3 CS vacuum system has been connected to TM3.

CS  vacuum system has been connected to TM3 for control system test(Dave.Morris).

  785   Thursday, November 13, 2014, 13:52 David WangITWStandard OperationTM1ThO#15 Shielding blocks have been transferred from ITE to ITW.

Dan and I transferred 5 shielding blocks from ITE to ITW. The ITW is configured to take proton beam.

  786   Thursday, November 13, 2014, 14:01 David WangITWRepairTM1 I replaced flow wheel and coil on ITW MSP water flow sensor.

I replaced flow wheel and coil on ITW MSP water flow sensor which is located in ITW pit. Before replacement, I checked the signal strength and frequency form e-board on this circuit. The signal was good in 10minutes watching. Still, I replaced them. The flow sensor works fine after replacement. I made a comment  on Isac e-fault system about this issue.

  787   Thursday, November 13, 2014, 14:05 David WangITERepairTM4 Dan and I replaced flow wheel on ITE HVC2 water flow sensor.

Dan and I replaced flow wheel on ITE HVC2 water flow sensor. The old wheel did rotate smoothly inside its SST case. The new wheel works fine.

  791   Tuesday, November 18, 2014, 11:14 David WangSouth Hot-CellStandard Operation UCx11crane down UCx 11 target into SHC from TH

I craned down UCx11 target from TH into SHC. Chad was in SHC service area watching on it. The source tray moving jig was installed on the crane for this moving.

  792   Tuesday, November 18, 2014, 11:15 David WangITEStandard OperationTM4Ta#44TM4 has been disconnected in ITE.

Dan and I disconnected TM4 in ITE.

  795   Wednesday, November 19, 2014, 11:12 David WangConditioning StationStandard OperationTM4 CS roughing pump is started.

CS roughing pump is started for TM4 and UCX 11 target.

ELOG V2.9.2-2455