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 109 of 141  Not logged in ELOG logo
ID Date Author Categorydown Type Module Target/Number Subject
  352   Friday, May 17, 2013, 12:02 Travis CaveConditioning StationStandard OperationTM3 module move

TM#3 with no target or source trays has been moved from the conditioning station to the NE silo.

  354   Tuesday, May 21, 2013, 11:52 Bevan MossConditioning StationStandard OperationTM3No Source TrayMay 16th Long HV conditioning

On May 16th 2013 the module was HV conditioned all day. As a result the maximum stable voltage has been increased to about 47kV (~4kV more than last test). A maximum voltage of 49kV was achieved but the module was very unstable. Attached is the data from the testing. Note that occasionally the sparking caused the PS to reset, it was turned back on and the voltage increased back to what it was (or lower) quickly.

Attachment 1: 16052013_TM3_long_HV_conditioning.xlsx
  357   Thursday, May 23, 2013, 09:51 Travis CaveConditioning StationStandard OperationTM4Ta#40module move

TM#4 with Ta#40 has been moved from the south hot cell to the conditioning station.

  359   Thursday, May 23, 2013, 14:07 Bevan MossConditioning StationRepair  Chiller Unit Repaired

 ESC came today and "repaired" the chiller. There was something wrong with the VFD controller. The were able to get it to start and run correctly again but were not able to recreate the problem. At this point it appears that it has magically disappeared. 

  360   Thursday, May 23, 2013, 14:08 Bevan MossConditioning StationStandard OperationTM4Ta #40Turbo Pumps on

 The turbo pumps have been turned on and are running

  361   Thursday, May 23, 2013, 14:12 Bevan MossConditioning StationMaintenance  Primary Circuit Drained and Flushed

 Rob Walker has drained the primary side of the conditioning station. It will be flushed, filled  and chemically treated. It was desired to chemically treat the primary side before before but it took so long that sediment was found (things started to grow).

  362   Monday, May 27, 2013, 10:35 Bevan MossConditioning StationStandard OperationTM4Ta #40Pumps Started HV testing to follow

The pumps have been turned on at ~9:30 this morning. Current values are 6.61 Mohm TCS:DIC1 @19.4 C. HV testing will start momentarily.

  363   Monday, May 27, 2013, 10:37 Bevan MossConditioning StationMaintenanceTM4 Cooling Systems topped off

Rob walker has flushed and refilled the primary side of the system (note the water still looks nasty). This morning the primary side of system needed to be bled as there were air pockets. Also TK2 had reached its low point and needed to be topped up.

  365   Monday, May 27, 2013, 15:59 Bevan MossConditioning StationRepair  Compressor fault

 Once again the 7.5 compressors are tripping due to faults. I believe it is due to over pressure as a result of the chiller fans not coming on. I have contacted ESC.

  366   Monday, May 27, 2013, 16:01 Bevan MossConditioning StationRepair  CanBUS card

 During HV conditioning of TM4 with Ta#40 there was a spark at ~43 kV that caused the Bias card to "fry". Dave Morris has been contacted and has said he will replace it tomorrow.

  367   Monday, May 27, 2013, 16:07 Bevan MossConditioning StationStandard OperationTM4Ta #40HV conditioning

 The HV conditioning reached a maximum of 44kV today before a spark took out the canbus card. I will attach the data once I have had a chance to format it. 

  368   Monday, May 27, 2013, 16:36 Bevan MossConditioning StationStandard OperationTM4Ta#40Argon Venting Started

 Argon venting has started. It will be left to vent over night. 

  375   Tuesday, June 04, 2013, 15:34 Bevan MossConditioning StationRepair  Relay replaced

ESC was called out again to inspect the chiller as it was showing the same problem as before. This time when started one fan came on (this is not what happened last time) but the fan controlled by the VFD did not. It was eventually traced to a relay that has been replaced. The system was tested as best it could without a load and appears to be working. It will be difficult to tell until a heat load is in place if the fix has solved everything. 

  385   Tuesday, June 25, 2013, 14:24 Travis CaveConditioning StationStandard OperationTM1UC#6module move

Module moves of TM#1 with Ta#39 from ITW to SHC then TM#1 with UCx#6 from SHC to the conditioning station moves went well.

  386   Tuesday, June 25, 2013, 14:56 Bevan MossConditioning StationStandard OperationTM1UCx#6Roughing Pumps Started

 The roughing pumps have been started on the conditioning station. As it is late in the day for David he will make the turbo pump connections tomorrow.

  392   Tuesday, July 02, 2013, 10:58 Travis CaveConditioning StationStandard OperationTM1UC#6module move

TM#1 with UC#6 has been moved from the conditioning station to the west target station, move went well.

  398   Friday, July 05, 2013, 10:02 Bevan MossConditioning StationStandard OperationTM3No source trayTM3 module move to TCS

TM3 has been moved from the south hot cell to the conditioning station. David and I completed the move. All went well.

  401   Wednesday, July 17, 2013, 08:29 David WangConditioning StationDevelopmentTM3 TM3 leak check in CS without source tray.

Leak checked TM3 without source tray in CS this morning. The CS and TM3 vacuum: IG1(top of the TM3 service cap)4.9x E-7Torr, IG2(diagnostic box  primary)1.9XE-6 Torr. IG1S (secondary vessel)7.9X E-7Torr. The leak detector was at 0.0XE-4 torr and 0.0XE-9 atm.cc/sec level during the leak checked. All water lines quick connector fittings, NPT thread fittings, water cap seals, blue insulator seals, bellow, gauges seals, turbo-pumps, all blanket panels,and TM3 to CS vessel seal have been sprayed with helium and leak checked. No leak has been found. The TM3 is leak tight in CS.

  402   Wednesday, July 17, 2013, 10:10 David WangConditioning StationDevelopmentTM3 CS cooling and vacuum system have been turned off

CS water cooling and vacuum system have been turned off at 10:00 AM this morning.The TM3 will be disconnected and moved to silo tomorrow morning.

  403   Thursday, July 18, 2013, 10:08 Travis CaveConditioning StationStandard OperationTM3no targetmodule move

TM#3 with no target and no source tray has been moved from the conditioning station to the north east silo, move went well.

ELOG V2.9.2-2455