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New entries since:Wed Dec 31 16:00:00 1969
ID Date Author Category Type Moduledown Target/Number Subject
  1144   Tuesday, December 01, 2015, 11:26 Travis CaveITE/ITW CoolingStandard OperationTM4UC#14Module moved

TM#4 with UC#14 has been moved from the conditioning station to the east target station.

  1145   Tuesday, December 01, 2015, 11:47 Anders MjosConditioning StationMaintenanceTM4UC#14Short on Extraction Electrode

 After conditioning over the weekend the EE developed a short. This was confirmed by measuring the resistance between EE and Heat Shield on the module yesterday.

  1146   Tuesday, December 01, 2015, 14:30 David WangITEStandard OperationTM4UCx 13TM4 has been connected in ITE

TM4 has been connected in ITE. All turbo-pumps are started. Everything is good so far.

  1159   Thursday, February 25, 2016, 09:29 David WangITEStandard OperationTM4 TM4 has been disconnected in ITE.

TM4 has been disconnect in ITE(except  vacuum lines). The ITE vacuum system is still operating.

  1162   Friday, March 04, 2016, 12:34 David WangITEStandard OperationTM4 TM4 ITE annual leak check

Dan and I finished TM4 and ITE annual leak check on primary and secondary vacuum vessel. We found one leak on a KF25  blank off which is located on the top of the service cap. It is a low E-7 atm.cc/sec range leak. But, it is very close to turbo-pumps so ITE IG1 and other gauges are not affected by it very much. It is an easy fix. TheKF -25 center ring on the blank off  will be replaced  after vent . It be will leak checked again at CS after replacement.  That is only leak we found on TM4 and ITE primary and secondary vessel air to vaccum leak check.

Dan and I also finished the helium pressure test on all TM4 using water circuits. 70 psi helium. base LR 0.0xE-9 atm.cc/sec. All of them are leak free. No any response has been found on leak detector during test.

  1193   Tuesday, April 05, 2016, 12:40 David WangITEStandard OperationTM4 I stopped ITE turbo pumps this morning

The ITE and TM4 have been vented with Argon . TM4 vacuum system is disconnected in ITE.

  1194   Wednesday, April 06, 2016, 09:37 Travis CaveSouth Hot-CellStandard OperationTM4UC#14module moved

TM#4 with UC#14 has been moved from the east target station to the south hot cell.

  1195   Wednesday, April 06, 2016, 14:03 chad fisherSouth Hot-CellStandard OperationTM4Ta#47UCx#14 removed Ta#47 installed

UCx#14 has been removed from TM4 and Ta#47 installed. No marks on 9 pin connector on UCx#14.

  1196   Wednesday, April 06, 2016, 14:52 Travis CaveSouth Hot-CellStandard OperationTM4UC#14, No Target, Ta#47Electrical Check

Various electrical checks done on TM#4, one of post beam UC#14, of no target and with Ta#47. See PDFs for details.

Attachment 1: TM4_elec_chk_notgt_SHC.PDF
TM4_elec_chk_notgt_SHC.PDF
Attachment 2: TM4_elec_chk_Ta47_SHC.PDF
TM4_elec_chk_Ta47_SHC.PDF
Attachment 3: TM4_elec_chk_UC14_SHC_postbeam.PDF
TM4_elec_chk_UC14_SHC_postbeam.PDF
  1197   Thursday, April 07, 2016, 09:24 Travis CaveConditioning StationMaintenanceTM4Ta#47module moved

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

  1198   Friday, April 08, 2016, 07:10 David WangConditioning StationStandard OperationTM4 TM4 vacuum has been connected in ITE.

All turbo pumps are started yesterday. The pumping down is good over night.

  1203   Monday, April 11, 2016, 09:42 David WangConditioning StationStandard OperationTM4 Helium pressure test on TM4 HS line at CS with new Lp Ta target

70 psi helium , 2 minutes. Base leak rate 0.0x E-9 atm.cc/sec. base pressure 0.0XE-4 torr. no response on LD.The line is good.

  1205   Monday, April 11, 2016, 13:44 David WangConditioning StationStandard OperationTM4 I stopped TCS and TM4 vacuum pumps.

The TM4 is still under vacuum at TCS. It will be vented tomorrow morning.

I disconnected TM4 vacuum system at TCS.

  1206   Tuesday, April 12, 2016, 09:08 Travis CaveITEStandard OperationTM4Ta#47module moved

TM#4 with Ta#47 has been moved from the conditioning station to the east target station.

  1207   Tuesday, April 12, 2016, 11:41 David WangITEStandard OperationTM4 TM4 has been connected in ITE.

Tm4 has been connected in ITE. The ITE and TM4 is under roughing now. ITE

Turbo-pumps have been started. Everything is fine.

  1253   Tuesday, June 07, 2016, 11:36 David WangITEStandard OperationTM4Ta#47TM4 has been disconnected in ITE.

Dan and I disconnected TM4 in ITE. HS water lines has been purged.

  1254   Tuesday, June 07, 2016, 11:37 David WangITEStandard OperationTM4Ta#47TM4 has been moved from ITE to SHC

Bill and Yasmine did the move. Everything is good.

  1255   Tuesday, June 07, 2016, 11:42 David WangSouth Hot-CellStandard OperationTM4Ta#47electrical check on TM4 with old Ta target at SHC.

I did an electrical check on TM4 with the old target still installed. The number is a little bit low on 500V mega check between chassis and 60KVbias which is 146Mohm. Others are good.    See attachment

I wrote all OL to 0  in attachment 1 ohmmeter check. Please See attachment 2 for correction.

Attachment 1: electrical_check_2016-06-07._TM4_with_old_Lp_Ta_target..pdf
electrical_check_2016-06-07._TM4_with_old_Lp_Ta_target..pdf
Attachment 2: electrical_check_2016-06-07._TM4_with_old_Lp_Ta_target..pdf
electrical_check_2016-06-07._TM4_with_old_Lp_Ta_target..pdf
  1256   Tuesday, June 07, 2016, 17:11 David WangConditioning StationStandard OperationTM4UC#16TM4 UCx16 electrical check and leak check at SHC

Chad and I finished the TM4 UCx6 electrical check and leak check at SHC. Leak check result on HS line is good. There is a dead short between "Z" repellor and HS during the first time electrical check. The dead short disappeared after re- installation of UCx 14 target onto TM4. See attachment

 Anders and I did another electrical check on TM4 at TCS under vacuum. See attachment 2

Attachment 1: UCX_16_electrical_test.pdf
UCX_16_electrical_test.pdf UCX_16_electrical_test.pdf UCX_16_electrical_test.pdf
Attachment 2: electrical_check._TM4_UCx16_at_TCS..pdf
electrical_check._TM4_UCx16_at_TCS..pdf
  1257   Tuesday, June 07, 2016, 17:14 David WangConditioning StationStandard OperationTM4UC#16TM4 with UCx16 target has been moved from SHC to TCS.

Bill and Yasmine did the move remotely this afternoon. The move is successful.

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