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 1 of 130  Not logged in ELOG logo
ID Date Author Category Typedown Module Target/Number Subject
  5   Tuesday, July 19, 2011, 11:17 Travis CaveSouth Hot-CellStandard OperationTM4Ta#35Move of TM#4 from East target station to south hot cell.

Move went well no problems readings at East Target Station were very high at 500mSv/hr.

  6   Tuesday, July 19, 2011, 11:52 chad fisherSouth Hot-CellStandard OperationTM4Ta#36New target Ta#36 Installed on TM4

Ta#36 has been installed on TM4 and is awaiting leak and electrical check.

A small piece of the standard top insulator ITA3376 broke off during removal of Ta#35 (indicated with a blue circle on attached pictures).

"JP's connector, ITA2493 showed the usual and as yet undiagnosed "arc" mark (picture to follow).

The plastic retainers on the new torqtite gaskets showed rad damage.

Attachment 1: DSC_0897.JPG
DSC_0897.JPG
Attachment 2: DSC_0899.JPG
DSC_0899.JPG
Attachment 3: DSC_0901.JPG
DSC_0901.JPG
Attachment 4: DSC_0905.JPG
DSC_0905.JPG
  7   Tuesday, July 19, 2011, 12:02 Travis CaveSouth Hot-CellStandard OperationTM4Ta#36Electrical check

See attached PDF for the details.

Attachment 1: TM#4_SIS_Elec_Check2.pdf
TM#4_SIS_Elec_Check2.pdf
  8   Tuesday, July 19, 2011, 12:25 maicodallavalleSouth Hot-CellStandard OperationTM4Ta36TM4 Ta36 Target was put into the south hot cell.

Ta36 was check by Maico and Chad.It was then carried into the anteroom.From the anteroom it was transferred into the south hot cell.

  9   Tuesday, July 19, 2011, 13:51 chad fisherSouth Hot-CellStandard OperationTM4Ta#36TM4 Ta#36 Leak Check Results

Tm4 w/ Ta#36 has been vacuum leak checked using the standard leak check procedure.

At 1:45pm RH was contacted to notify them that TM4 is ready to move.

Attachment 1: DOC.PDF
DOC.PDF
  10   Wednesday, July 20, 2011, 09:55 Travis CaveITEStandard OperationTM4Ta#36Move of TM#4 from South Hot Cell to East Target Station.

Move completed, move went well.

  13   Monday, July 25, 2011, 14:49 Travis CaveSpent Target VaultStandard Operation Ta#35Spent target move

Ta#35, in pail #88, has been place into spent target storage, in spot 6C. Upon removal from the South Hot Cell it was 411mSv/hr our hottest target to be placed into storage to date. There are 8 free slots for targets left in the vault.

  14   Wednesday, July 27, 2011, 14:34 Travis CaveSouth Hot-CellStandard OperationTM1 Module move

TM#1 has been moved from the Conditioning Station to the South Hot Cell for the installation of Ta#37.

  15   Thursday, July 28, 2011, 12:02 Travis CaveSouth Hot-CellStandard OperationTM1Ta#37Electrical check

TM#1 has passed the the electrical check.

Attachment 1: Electrical_Check_for_TM_1_with_Target_attached_Ta37.pdf
Electrical_Check_for_TM_1_with_Target_attached_Ta37.pdf
  16   Thursday, July 28, 2011, 14:07 Travis CaveConditioning StationStandard OperationTM1Ta#37Module move

Tm#1 with Ta#37 moved from the south hot cell to the conditioning station. Move went well.

  18   Wednesday, August 03, 2011, 11:24 Travis CaveITWStandard OperationTM1Ta#37Module move

TM#1 with Ta#37 has been moved from the conditioning station to the the west target station, move went well.

  19   Wednesday, August 17, 2011, 13:09 Bevan MossITWStandard OperationTM1Ta #37TM1 move from ITW to Hot Cell

 TM1 with Ta #37 target was moved from ITW to the south hot cell. The rotation of TM1 may have been off slightly during the final removal from ITW but it was minimal. Entry into the south hot cell went with out incident. This was my first time moving the module without the presence of Travis Cave. 

  20   Thursday, August 18, 2011, 13:12 chad fisherSouth Hot-CellStandard OperationTM1UCx #2UCx #2 Installation

UCx #2 has been installed onto TM1.

Installation went well except the left leg got bent slightly sometime between testing on the jig and installation onto the module (probably during removal for the argon filled bag). Leg was gentle offered into place and its clearance with the heat shield double checked with both a mirror and goose neck camera. Leg was close to ther heat shield but appeared to have clearance. Anders and John Wong viewed this and deemed it ok. Video images of this clearance were recorded.

Leak checking was also completed successfully:

Base pressure on the leak detector was a constant 0.0 x 10-4, Stable leak rate was an unwavering 0.0 x 10-9.

Both heat sheild circuits were checked twice (starting with the highest gland) and sprayed with a 2 second burst of helium into the test hole in the nut. No reponses were seen after 1 minute an any of the circuits.

Bevan Moss and David Wang performed an electrical check which they relayed to me that the module with target installed had passed.

 

  21   Thursday, August 18, 2011, 14:09 Bevan MossSouth Hot-CellStandard OperationTM1UCx#2Leak and Electrical Check plus Remote Move to Conditioning Station

 TM1 with UC#2 had the target installed, the heat shield line was pumped on and achieved a vacuum of 0.0 x 10^-4 Torr and a  leak rate of 0.0 x 10^-9 atm cc / sec with no response when sprayed with helium. An electrical check was completed by David and myself all values were withing tolerance.  The module was then moved from the south hot cell to the conditioning station where it will start pump down. The move was uneventful every operated as it should and there were no crashes minor or large. It was attempted to fill the containment box with argon prior to closing it but assuming that didn't work I estimate the target was exposed to air for a total of ~4 hours during installation and move. 

  22   Thursday, August 18, 2011, 16:07 Bevan MossConditioning StationStandard OperationTM1UCx#2Pump Down

 Pump down in the conditioning station started at ~2:40 for rough down. The turbo pumps were turned on at ~3:30 and at 3:52 the pressures were reading as follows:

IMG in the containment box 9.2 x 10^-5 T

IMG in the secondary 2.0 x 10^-3 T

ION in the service cap 4.6 x 10^-5 T

Note that the cross has been installed on the vacuum vessel which now includes a turbo pump and the IMG 100.

Leak check will occur tomorrow.

  25   Wednesday, August 24, 2011, 17:11 Bevan MossConditioning StationStandard OperationTM1UCx#2Leak Check, HV conditioning and Module Move

Today a leak check on TM1's external seals and the heat shield line was completed by David Wang. After 16 hours of the turbo pumps running on the conditioning station stations pressures were 3.6 x 10^-6 T, 1.2 x 10^-5 T, and 1.8 x 10^-6 T for the containment box, secondary vacuum, and service cap respectively. This is a significantly quicker pump down after the cross with small turbo pump was installed on the vacuum vessel. The base pressure of the leak testing cart was 0.0 x 10^-4 T and the leak rate was 1.2 x 10 x 10^-8 atm cc / sec. There was no response from the external test where the module was sprayed with helium. The heat shield line was pressurized with 80 psi helium which caused the leak rate to climb to a maximum of 2.5 10 ^-8 atm cc / sec but dropped to 1.9 x 10^-8 atm cc / sec and was stable there, the total test time was 2 minutes. This test was repeated another time and had similar results.  These results although showing a slight increase in the detected leak rate are withing acceptable and indicate that the module is leak tight. 

At 9:30 the HV check and conditioning started (~17 hours turbos on), the secondary vacuum, containment box and service cap had the following pressures in Torr respectively, 1.0 x 10^-5, 3.2 x 10^-6, 1.6 x 10^-6.  The voltage was steadily raised with virtually no current up to 28.5 kV which was achieved at 9:50. When raised to 30 kV the current increased significantly to ~300 uA and a large amount of sparking occurred. The voltage was dropped to 0 volts for 2 minutes and then was returned to 30 kV at 10:03, the current draw was around 200 uA and climbing. After a few sparks and time the current had dropped to 120 uA. This indicates that the module is still conditioning and matches what is observed by the control room when the module is in ITW. The module was deemed acceptable for this current run and was then vented with argon this took about 2 hours.

The module was then remotely moved from the conditioning station to ITW. When first attempting to transfer the controls to the remote control room they were not transferred and when testing the up command as per standard procedure the module dropped down slightly. David Wang went to lock out the target again and the controls were successfully transferred. A note of this was made in the log book. Apart from this the move went smoothly.  

  26   Thursday, September 01, 2011, 09:11 Don JacksonITWStandard OperationTM1UCx#2Argon Venting West Station

West target station is setup to use argon for tank venting.  There is 1200 PSI remaining on argon bottle in electrical room.  That is sufficent for venting west target station to atmosphere twice.  ISAC Operations has been previousily contacted and their procedures for venting remain the same except that they can not rely on ITW:CG4S to determine when at atmospheric pressure.  I have asked them to contact me if an unscheduled vent is required.

  27   Wednesday, September 14, 2011, 10:32 Travis CaveSpent Target VaultStandard Operation Ta#37Spent target move

Ta#37 has been moved from the south hot cell into the storage vault. The target is in pail #89 and in spot 6A in the vault. It was 840uSv/hr upon removal from the south hot cell. There are 7 free spots left in the vault.

  28   Wednesday, September 28, 2011, 09:07 Travis CaveITEStandard OperationTM4Ta#36Move of TM#4 from East target station to south hot cell.

Move of TM#4 with Ta#36 from East target station to south hot cell, move went well.

  29   Wednesday, September 28, 2011, 10:06 chad fisherSouth Hot-CellStandard OperationTM4Ta#36Ta#36 Removal

Ta#36 was removed from target module 4.

The standard, unexplained, un-investegated, un-resolved "arc" were again present on "JP's connector", otherwise no apparent problems visible.

 

Chad

 

 

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