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New entries since:Wed Dec 31 16:00:00 1969
ID Date Author Category Type Moduledown Target/Number Subject
  1001   Friday, July 17, 2015, 13:51 chad fisherSouth Hot-CellRepairTM2 TM2 Status

Gas lines extensions installed yesterday were too long and gas lines touched top inside of containment box. They have been removed and the gas lines re-installed in their original manner. Gas lines have been "adjusted" as to clear the tube heater lines, which was the original issue.

Attachment 1: 20150717_134123.jpg
20150717_134123.jpg
  1002   Monday, July 20, 2015, 14:12 chad fisherSouth Hot-CellRepairTM2 TM2 Status

Ultem high voltage spacer installed and 9 pin banana plug plugged in. Target has been inserted into the hot cell and will be installed after base-line electrical checks...probably first thing in the morning.

Attachment 1: 20150720_134819.jpg
20150720_134819.jpg
Attachment 2: 20150720_135747.jpg
20150720_135747.jpg
Attachment 3: 20150720_140100.jpg
20150720_140100.jpg
  1003   Monday, July 20, 2015, 17:11 Grant MinorSouth Hot-CellRepairTM2 TM2 New Source Tray - additional photos 20 July 2015

A few additional higher-resolution photos of the TM2 source tray with new spacer ITA6270, and bent copper ground line clip.

Also attached is a photo of a 3/8" copper line placed in between the loose ECR line and the Mounting Support Plate line, for dimensional reference.

Attachment 1: 3-8ths_gap_check_15July2015.JPG
3-8ths_gap_check_15July2015.JPG
Attachment 2: TM2_New_Source_Tray_20July2015.JPG
TM2_New_Source_Tray_20July2015.JPG
Attachment 3: TM2_Spacer_ITA6270_and_copper_ground_clip_detail_20July2015.JPG
TM2_Spacer_ITA6270_and_copper_ground_clip_detail_20July2015.JPG
  1004   Tuesday, July 21, 2015, 09:21 Travis CaveSouth Hot-CellStandard OperationTM2no targetElectrical Check Failed

TM#2 has failed the electrical check see attached pdf for details.

Attachment 1: TM#2_elec_chk_source_tray_no_tgt.PDF
TM#2_elec_chk_source_tray_no_tgt.PDF
  1005   Tuesday, July 21, 2015, 10:40 Grant MinorAssembly/Bench TestRepairTM2 TM2 - bench inspection photos from 6-June-2015
Attachment 1: TM2_Source_Tray_Bench_Inspection_6-June-2015_04.JPG
TM2_Source_Tray_Bench_Inspection_6-June-2015_04.JPG
Attachment 2: TM2_Source_Tray_Bench_Inspection_6-June-2015_13.JPG
TM2_Source_Tray_Bench_Inspection_6-June-2015_13.JPG
Attachment 3: TM2_Source_Tray_Bench_Inspection_6-June-2015_11.JPG
TM2_Source_Tray_Bench_Inspection_6-June-2015_11.JPG
  1008   Wednesday, July 22, 2015, 11:31 Travis CaveSouth Hot-CellStandard OperationTM2no targetElectrical Check

Electrical check done on TM#2 around the 25th of June 2015, this was before the coil line leak was found.

Attachment 1: TM#2elecchksourcetraynotgt62515.PDF
TM#2elecchksourcetraynotgt62515.PDF
  1009   Wednesday, July 22, 2015, 12:13 chad fisherSouth Hot-CellRepairTM2 TM2 Short Findings

Pin X was unplugged, short remained, however any slight pressure on the block towards the source tray makes the short go away.

Confirmed clearance between the EE and thr R / U coil lines as well as MSP of coil line.

Camera inspection would seem to indicate that ALL issues stem from a common location...there is a spot where both the pin X waterline and the one of the R / U waterline  contact the heat shield waterline...one on one side of the heat shield line and the other on the other side.

 

 

Attachment 1: TM2_Short_July_22.jpg
TM2_Short_July_22.jpg
  1012   Friday, July 24, 2015, 14:41 Travis CaveSouth Hot-CellStandard OperationTM2no targetModule moved

TM#2 has been moved from the south hot cell to north east silo.

  1030   Thursday, August 06, 2015, 11:40 Travis CaveSouth Hot-CellStandard OperationTM2no targetModule moved

TM#2 is now in the south hot cell

  1032   Monday, August 10, 2015, 14:07 Isaac EarleSouth Hot-CellRepairTM2 TM2 Containment Box Removed

The containment box was taken off TM2 in preparation for installation of a new coil line isolator.

ITA6272 and ITA6273 have been received from the Scintillator Shop.  ITA6274 should be ready by the end of today.

  1033   Thursday, August 13, 2015, 09:17 chad fisherSouth Hot-CellRepairTM2 TM2 status

Tuesday, August 11,  insulator ITA6272 was installed onto the "pin x" line (unused plasma electrode) and tested; it seems to have successfully eliminated the shorts on that line.

Wednesday, August 12  "shunts" installed on tube heater and oven circuit and electrically  tested.

Thursday , August 13, dummy target installed.

 

Attachment 1: 20150811_132709.jpg
20150811_132709.jpg
Attachment 2: 20150813_083255.jpg
20150813_083255.jpg
Attachment 3: 20150813_090814.jpg
20150813_090814.jpg
  1034   Thursday, August 13, 2015, 11:34 Travis CaveSouth Hot-CellStandard OperationTM2Dummy TargetElectrical Check

Electrical check of TM2 without target after that widget has installed, electrical check with the shunts on, electrical check with the dummy target installed.

Attachment 1: TM2_elechknotgtafterwidget.PDF
TM2_elechknotgtafterwidget.PDF
Attachment 2: TM2_elechknotgtshunt.PDF
TM2_elechknotgtshunt.PDF
Attachment 3: TM2_elecchkdummytgt.PDF
TM2_elecchkdummytgt.PDF
  1035   Thursday, August 13, 2015, 13:46 chad fisherSouth Hot-CellRepairTM2 TM2 Status

As previously mentioned, dump target installed with new mounting and high current fasteners.

Leak Check complete and ready to move to CS at 1:30

  1036   Thursday, August 13, 2015, 14:36 Travis CaveConditioning StationStandard OperationTM2Dummy TargetModule moved

TM#2 with the dummy target has been moved to the conditioning station.

  1037   Thursday, August 13, 2015, 17:17 David WangConditioning StationRepairTM2Dummy targetTM2 at CS

TM2 has been moved to CS. All turbo-pumps have been started. The pumping down is good so far.  I connected the leak detector to service cap, and finished the leak check today.  The LD base LR:0.0Xe-9atm.cc/sec. 80psi helium were applied to coil1, coil 2. HS and window circuits, each for 2minutes. No any response has been found on LD. So all water lines are leak tight now. I also sprayed   helium to top service cap checking all air to   vacuum seals. They are all good either. But, The new installed PGN1 does not work. Other thing need to mention is The TP2 is running at 2.45A which is 1A higher comparing to TP1. It need to be monitored to see if we have to replace it or not. The high current cables and water lines will be connected tomorrow morning.

  1038   Friday, August 14, 2015, 10:00 David WangConditioning StationRepairTM2 Started CS water package for TM2

I finished the rest TM2 connections to CS, and started CS cooling package. Everything works fine so far.

  1039   Monday, August 17, 2015, 10:44 Anders MjosConditioning StationDevelopmentTM2LP-FEBIAD Test Target (empty)Conditioning TM2 Source Tray with FEBIAD test target

TGHT, TBHT, ANODE and COIL power tested (some amps/volts)

Monday, August 17, 2015, 10:43: BIAS/EL/EE to 15/7.5/1.5 kV

Monday, August 17, 2015, 10:45 : COIL 20A, ANODE 200V

Keiko fixed the auto-ramping program and access rights to it.

Monday, August 17, 2015, 13:06: Auto-ramping at 2/1 A/min. Good/bad vacuum at 6E-6 and 8E-6 T

Monday, August 17, 2015, 13:24 : ANODE current limit set incorrectly. Corrected and 200V (9 mA)

Monday, August 17, 2015, 15:28: COIL to 50 A

Monday, August 17, 2015, 15:43: Reduced ANODE to 100 V

Monday, August 17, 2015, 16:56 : Increased EL to 8.3 kV to increase FC current.

Monday, August 17, 2015, 17:04 : FC0 current at 1.5E-8 A

Beam ionized and accelerated on the new TM2 source tray

Monday, August 17, 2015, 17:12 : TGHT / TBHT at 500 / 250 A. Will leave over night to outgas. ISAC ops are monitoring the source.


Tuesday, August 18, 2015, 08:07: Everything stable overnight. Continue ramping heaters.

Tuesday, August 18, 2015, 08:48: TBHT voltage limited by EPICS (hardcoded) at 273 A.

TGHT/TBHT at 600 / 273 A 

Tuesday, August 18, 2015, 09:52: Adjusted COIL current down to 0 and back up. Response seen on FC0.

Tuesday, August 18, 2015, 22:29 : Starting cool down.


 Wednesday, August 19, 2015, 08:26: Source and HV off. EE configured to conditioning mode. RGA off.

Wednesday, August 19, 2015, 08:42: BIAS/EL at 15 / 7.5 kV. PNG1 at 3.5E-6 T, IG1 at 3.9E-7 T

Wednesday, August 19, 2015, 08:53: BIAS/EL 20 / 10 kV. 2 sparks.

Wednesday, August 19, 2015, 09:54: BIAS/EL 30 / 15 kV. Some sparking around 28 kV required BIAS voltage to be reduced momentarily. 

Wednesday, August 19, 2015, 10:04: Sparking at 30 kV. Reduced BIAS to 13 kV to get spar rate to less than 10/min

Wednesday, August 19, 2015, 10:19 : BIAS current limiting. Switch off BIAS and EL

Wednesday, August 19, 2015, 12:04: Water off for purging and leak test.

Wednesday, August 19, 2015, 12:52: Vacuum response observed while David was working on purging the water lines. This turned out to be when the valve to the leak detector was opened.

Attachment 1: FirstBeamTM2SourceTray2015-08-17.png
FirstBeamTM2SourceTray2015-08-17.png
Attachment 2: TM2_Source_Tray_with_FEBIAD_test_target.docx
  1040   Wednesday, August 19, 2015, 14:52 David WangConditioning StationRepairTM2 TM2 at CS

During the TM2 HV test at CS, It failed. In order to confirm there is no any water leak inside the module after the heaters and beam extraction test, I disconnected all the water lines on the TM2, and purged the water lines with pressure air. Leak detector was reconnected back to the TM2 service cap, and all water lines are pressurized with 80psi helium again each for 2 minutes.No any leak had been found during the test. All the water lines are still perfectly sealed. Also, I checked all the vacuum to air seals on the top of the module.They are good either.  Anders used the RGA  tracking the helium during the test. No leak.

  1041   Thursday, August 20, 2015, 09:38 David WangConditioning StationRepairTM2 TM2 was disconnected at CS

TM2 was disconnected at CS. Travis and I did  electrical check before the venting. After,The module was vented and moved to SHC. The moving is smooth.

  1042   Thursday, August 20, 2015, 10:15 Travis CaveSouth Hot-CellStandard OperationTM2Dummy TargetModule moved

TM#2 is now in the south hot cell.

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