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New entries since:Wed Dec 31 16:00:00 1969
ID Date Author Category Type Module Target/Number Subject
  1828   Tuesday, November 27, 2018, 13:31 chad fisherSouth Hot-CellStandard OperationTM4Ta#57Ta#57 removal

Ta#57 has been removed from TM4.

  1827   Tuesday, November 27, 2018, 11:05 Travis CaveSouth Hot-CellStandard OperationTM4Ta#57Module move

 TM#4 with Ta#57 has been moved from the east target station to the south hot cell.

  1826   Monday, November 26, 2018, 12:19 chad fisherNorth Hot-CellRepair  East Manipulator

In preparation for removing the slave for replacement I discovered that the timing screw in the handle cable drum (master side) had been left threaded into the pulley...it should have been completely removed. It was bent from hitting on a casting inside the mater arm which most likely contributed to the hopped pulleys on the slave side. After removing this timing screw I entered the north hot cell and replaced the hopped cable back onto its pulley and Isaac tested the motions that previous caused the hopped cables. These tasks were repeated 4 times without any issues. Also of note is a missing setscrew in the tong cable pulley pin and a somewhat loose tape on the slave, also the tape shows signs of a crimp/bend. Upon further inspection and comparison with the other slaves I also found that one of the "lock-down" fittings tying the Z motion tape drum to the corresponding gear is completely missing. See pictures attached.

Attachment 1: 20181126_113326.jpg
20181126_113326.jpg
Attachment 2: 20181126_113338.jpg
20181126_113338.jpg
  1825   Thursday, November 22, 2018, 14:38 Isaac EarleNorth Hot-CellDevelopment  NHC design approved by High Voltage Engineer

To satisfy RS 101 from the NHC requirements specification (Document-131915) Tomislav Hurskovec was consulted regarding high voltage safety.  After a verbal discussion on various aspects of the NHC design he confirmed that the design satisfies high voltage safety concerns.

A copy of his confirmation e-mail is attached in PDF format.

 

Attachment 1: NHCHV.pdf
NHCHV.pdf NHCHV.pdf
  1824   Thursday, November 22, 2018, 08:55 Anders MjosITWRepairTM2UC#25ITW:FC5 safety signal limit switch installed

Yesterday Diagnostics group installed a temporary external limit switch to provide the in signal to the safety system.

Attachment 1: FC5_limit_switch.jpg
FC5_limit_switch.jpg
  1823   Thursday, November 22, 2018, 08:53 Anders MjosITWStandard OperationTM2UC#25Block move

Frank and Anders moved blocks from ITE to ITW yesterday

  1822   Thursday, November 22, 2018, 08:52 Anders MjosITEStandard OperationTM4Ta#57Closed ITE dump water

Paddle wheel signal was tripping proton beam in ITW. Valved off ITE dump to divert flow to ITW. Field around valve was about 600 uSv/h

  1821   Wednesday, November 14, 2018, 16:10 Anders MjosITWRepairTM2UC#25ITW:FC5 safety signal troubleshooting

Measured resistance on safety limit switches for FC5 on Exit Module 2. Determined that the in connected signal did not work (shows not connected irregardless of FC position). Confirmed proper operation of the OUT limit. See attachment for details. The Harp 5 x and y signal connectors were checked and reconnected.

Attachment 1: 2018-11-13_FC5.pdf
2018-11-13_FC5.pdf
  1820   Thursday, November 08, 2018, 09:27 chad fisherSouth Hot-CellMaintenance  South East Manipulator cable replacement

The handle cable on the east manipulator of the south hot cell has been replaced. Old cable showed signs of wear but had no broken strands. Manipulator is back together but still needs to be re-tensioned.

  1819   Wednesday, November 07, 2018, 09:50 Anders MjosITWStandard OperationTM2UC#25TM2 connected in ITW

TM2 was connected yesterday by Frank and Anders. The West side panel with IG1S on Exit Module 2 was replaced with a new SST panel with 1 CF flange only (dwg). Link to check list on DocuShare.

  1818   Tuesday, November 06, 2018, 10:59 Travis CaveITWStandard OperationTM2UC#25Module move

 TM#2 with UC#25 has been moved from the conditioning station to the west target station.

  1817   Monday, November 05, 2018, 14:27 Anders MjosConditioning StationStandard OperationTM2UC#25Target module disconnected

Frank and Anders disconnected the water and electrical connections this afternoon after the target was conditioned over the weekend. The heater ramping program ran with the wrong gauge selected, causing the vacuum to go higher than planned. The module will be moved to ITW tomorrow.

  1816   Monday, November 05, 2018, 08:24 Travis CaveSpent Target VaultStandard Operation nSiC#1Spent Target Move

 The spent nSiC#1 target has been moved from the south hot cell to the spent target vault. It was placed in pail #172 and placed in spot 7B. See attached PDF for vault details.

Attachment 1: Target_Index_2018-11-02.pdf
Target_Index_2018-11-02.pdf Target_Index_2018-11-02.pdf
  1815   Thursday, November 01, 2018, 11:42 David WangConditioning StationStandard OperationTM2UCx 25.TM2 HS line helium pressure test at TCS and helium spray at SHC..

Chad and I did  leak check on TM2 HS line at SHC yesterday. Base LR 0.0XE-9 atm.cc/sec.   No response on LD. during helium spray.   Today , I did helium pressure test at TCS. base LR 0.0xe-9atm.cc/sec. applied 70psi helium for 3 minute. leak rate slowly climbed to2.2 Xe-7 atm.cc/sec ate stopped there.  The result is close to before.

  1814   Wednesday, October 31, 2018, 14:23 Travis CaveSouth Hot-CellStandard OperationTM2nSiC#1 and UC#25Electrical Check

 TM#2 with targets nSiC#1 (old target) and UC#25 (new target) electrical check results. See attached for details.

Attachment 1: Electrical_Chk__TM#2_nSiC#1_SHC_Post_Beam_Oct-31-2018.pdf
Electrical_Chk__TM#2_nSiC#1_SHC_Post_Beam_Oct-31-2018.pdf
Attachment 2: Electrical_Chk_TM#2_UC#25_SHC_Oct-31-2018.pdf
Electrical_Chk_TM#2_UC#25_SHC_Oct-31-2018.pdf
  1813   Wednesday, October 31, 2018, 14:20 Travis CaveConditioning StationStandard OperationTM2UC#25Module move
TM#2 with UC#25 has been moved from the south hot cell to the conditioning station.
  1812   Tuesday, October 30, 2018, 10:50 Travis CaveITWStandard OperationTM2nSiC#1Modules moved

 Modules were moved, ITW EX2 was moved from the conditioning station to the west target station and TM#2 ,with nSiC#1,  was moved from the west target station to the south hot cell.

  1811   Monday, October 29, 2018, 10:43 David WangConditioning StationRepair  ITW exit 2 leak check at TCS.

I did a leak check this morning on exit 2 module at TCS. LD base  leak rate is 4.00XE-9atm.cc/sec, Base pressure is 0.00 X E-4 torr. All seals, bellows, and flanges are checked. The new FC5 bellow is good. There is a big leak up to 2X E-6 atm.c/sec has been found on IG1S side panel . The panel itself  will be replaced this time. Machine shop is working on it.. Two small leaks in E-9  atm.cc/sec range have been found on the  o-ring between service cap steel welding frame and the whole cap top cover plate in different location . All bolts on the top plate pressing down the o-ring are very tight. I can do nothing on them. However, I sprayed some vacuum seal around the leak area. The leaks are small  and close to ITE TP1S. I don not think we have to replace it at this moment.  Basically, The module is good to move to ITW tomorrow morning. 

  1810   Friday, October 26, 2018, 09:44 Travis CaveConditioning StationStandard Operation  Exit Module moved
The west exit #2 module has been moved from the south hot cell to the conditioning station.
  1809   Thursday, October 25, 2018, 11:03 chad fisherSouth Hot-CellRepair  Exit 2 West

Actuator arms, lemos, lemos and banana plug block have been disconnected in preparation for raising of the service tray. Aaron has pictures

Attachment 1: 20181025_102518.jpg
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