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 117 of 138  Not logged in ELOG logo
  ID Date Author Category Type Module Target/Numberdown Subject
  1861   Tuesday, January 22, 2019, 09:56 David WangITWMaintenanceTM2 ITW water system maintenance.

ITW water system maintenance is done. All working paddle wheels and coils are replaced. ITW water system polyurethane tubes are replaced as well. Two 3/8" leak small valves on return lines are replaced. 85 liters of tritium water are transferred from storage tank to B2 level holding tank. LALC water are refilled into S-tank. Restarted pump and checked system. Everything works fine now. No water leak has been found so far.  

  1862   Thursday, January 24, 2019, 10:34 David WangITWMaintenance  Changed 24VDC plugs of TP solenoid valves in ITW

3 damaged 24VDC plugs of TP solenoid valves are replaced. Inspected other plugs. All of them are in good condition now.

  1863   Monday, January 28, 2019, 10:41 David WangConditioning StationRepairTM2 TM2 water lines helium pressure test at TCS

leak detector base LR: 0.0Xe-9atm.cc/sec. helium 70 psi. test time : 3 minutes for each circuit.The results in atm.cc/sec are Ta+(A):1.8  XE-8. TA-(B):0.0xE-9. Tu-(C):1.2XE-7. TU+(D):1.6XE-7. Coil 2 (PQ):0.0XE-9. Coil 1 (RU):0.0XE-9. MSP:2.2XE-7. EE:1.0XE-7. HS:N/A. Window:5.8XE-9

  1864   Thursday, January 31, 2019, 14:16 Isaac EarleNorth Hot-CellDevelopment  NHC grounding approval

 Franco Mammarella was consulted regarding electrical grounding of the NHC design (RS103 of Document-131915).  After discussing the design, and having grounding inspected by Randy Boehm, Franco approved the design and advised that the grounding system should be inspected periodically.  This task has been added to the Remote Handling inspection index on an annual schedule.  A PDF copy of the e-mail correspondence with Franco is attached.

Attachment 1: NHC_grounding.pdf
NHC_grounding.pdf NHC_grounding.pdf
  1865   Monday, February 11, 2019, 10:26 Isaac EarleSafe Module ParkingDevelopment  SMP shield box and vacuum vessel moved to Target Hall

  On February 8th the SMP shield box (IRH1675) and the vacuum vessel (IRH1806) were both raised from a horizontal to vertical orientation in the ISAC-1 Experimental Hall.  Hamilton "Mini-Mite" S-MM2-43FS caster wheels were then installed on the base of the shield box and it was lowered down the hatch to the B2 level.  The vacuum vessel was then lowered into the shield box, supported by the rollers, as designed.  The shield box and vessel combination were then moved south along the steel plated floor until positioned under the hatch leading to the Target Hall.  Movement along the floor was achieved by pushing the back of the vessel with an electric fork truck and pulling from the front with a cable winch attached to a plate mounted in the floor in the SHC service area, centered east/west between the Ante Room doors.  The fork truck alone was sufficient to move the assembly on the smooth section of the plates, but the winch was needed on the section paitned with textured grit.  The vacuum vessel was then lifted into the Target Hall and placed in a temporary storage location in the silo area.  The shield box was then lifted, casters removed, and then lifted up into the Target Hall.  It was a very tight fit with the tubing which has been installed on the SHC and NHC ducting for the new flow meters, but the move was completed without causing damage.  The shield box was placed on the B2 level in the Target Hall where some final tapped holes will be added on the exterior before moving to the final installation location.

 

 

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  1866   Thursday, February 14, 2019, 07:13 David WangConditioning StationStandard OperationTM2 TCS vacuum pumps have been stopped.

Preparation on TM2 move from TCS to SHC.

  1868   Friday, February 15, 2019, 12:05 David WangITEMaintenanceTM4 ITE annual vacuum leak check.

Helium pressure test on all water lines: 70psi , 3 minutes. HS has a quick response to 9Xe-9atm.cc/sec for 20 seconds. No response on other lines. All water lines are good. Air to vacuum  leack check on ITE and TM4: TM4 IG1 / Steers side panel has a low E-6 atm.cc/sec leak. The o-ring need to be changed when TM4 is located at TCS. All other air to vacuum seals are good on both primary and secondary vacuum vessel.

  1869   Friday, February 15, 2019, 12:09 David WangITEMaintenanceTM4 ITE water system maintenance.

The ITE water system maintenance job is done. Changed all paddle wheels and coils on ITE flow sensors. All using water poly-tubes in ITE are replaced .  Started high active water pump, and checked ITE water signals. They are good. No leak has been found on  replaced tubes and related fittings.

  1870   Tuesday, February 19, 2019, 10:20 chad fisherSouth Hot-CellRepairTM2 Containment box removed

Containment box has been removed from TM2 in preparation for source tray removal. I will walk Aaron through removal of the optics tray today also.

  1871   Tuesday, February 19, 2019, 11:56 chad fisherSouth Hot-CellRepairTM2 Optics tray removal

Aaron has removed the optics tray in TM2 in preparation for source tray removal.

  1872   Wednesday, February 20, 2019, 09:07 chad fisherSouth Hot-CellRepairTM2 Module side waterblock jig

I have installed the module side water block jig.

  1873   Thursday, February 21, 2019, 15:10 Isaac EarleSafe Module ParkingDevelopment  Seismic requirements for SMP

Dragan Mitrovic, TRIUMF structural engineer, was consulted earlier this week regarding seismic requirements for the SMP assembly.  Installation location, overall dimensions, total weight, and the center of mass for assembly IRH1670 were provided to him by e-mail.  On Feb 20th he communicated verbally that he had analyzed the assembly for seismic loads, and concluded that this equipment does not require anchoring or any other form of seismic restraint.

Update (May 30, 2019): Confirmed with Dragan that the approach he used for analysis was that specified in the BC Building Code (both 2012 edition and updated 2018 edition).

  1874   Friday, February 22, 2019, 10:31 chad fisherSouth Hot-CellRepairTM2 TM2 Source tray removal

The source tray has been removed from TM2.

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  1875   Monday, February 25, 2019, 09:44 chad fisherSouth Hot-CellRepairTM2 Water block jig

module side water block jig has been removed in preparation for electrical checks.

  1876   Tuesday, February 26, 2019, 08:51 chad fisherSouth Hot-CellRepairTM2 TM2 containment box

The containment box has been reinstalled onto TM2 in prepatation for testing in the conditioning station.

  1878   Friday, March 01, 2019, 08:42 Anders MjosConditioning StationStandard OperationTM2 Conditioning TM2 without source tray

BIAS and EZL connected. No water flowing into the module (water looped on top of module)

Friday, March 01, 2019, 08:20: 10kV

Friday, March 01, 2019, 08:40: 20kV

Friday, March 01, 2019, 08:57: 30kV

Friday, March 01, 2019, 11:00: 40kV

Friday, March 01, 2019, 15:23: 50kV


Monday, March 04, 2019, 08:50: 50kV

Monday, March 04, 2019, 09:22: 52.5kV

Monday, March 04, 2019, 10:01: Spark tripped TPs at 54kV

Monday, March 04, 2019, 10:04: 50kV

Monday, March 04, 2019, 10:14: Multiple sparks at 54kV. Lowered to 30kV to stop.

Monday, March 04, 2019, 10:15: 40kV

Monday, March 04, 2019, 10:16: Sparking at 42kV. Lowered to 40kV

Monday, March 04, 2019, 10:19: 42kV

Monday, March 04, 2019, 10:48: 50kV

Monday, March 04, 2019, 11:11: 52.5kV

Monday, March 04, 2019, 11:25: 54kV

Monday, March 04, 2019, 11:50: 55kV

Monday, March 04, 2019, 13:33: 3 sparks observed for the last 1.5h

Removed HV cover to avoid sparking between F/T and cover.

Monday, March 04, 2019, 14:02:20kV

Monday, March 04, 2019, 14:06: 50kV

 Monday, March 04, 2019, 14:12: 55kV

Monday, March 04, 2019, 14:20: Multiple sparks at 56kV. Lowered to 30kV to stop.

Monday, March 04, 2019, 14:27: 40kV

Monday, March 04, 2019, 14:29: 50kV

Monday, March 04, 2019, 14:32: 55kV

Monday, March 04, 2019, 14:40: 56kV

Monday, March 04, 2019, 14:55: Multiple sparks at 57kV. Lowered to 30kV to stop

Monday, March 04, 2019, 15:01: 55kV

Monday, March 04, 2019, 15:36: 57kV

Monday, March 04, 2019, 15:51: 57.5kV

Monday, March 04, 2019, 16:30: ~1 spark in 0.5h, somewhat unstable current (see attached Word file)

Monday, March 04, 2019, 16:30: HV off

Attachment 1: TM2_BIAS_current_vs_voltage_2019-03.xlsx
Attachment 2: TM2_HV_Conditioning_2019-03-01.docx
  1879   Friday, March 01, 2019, 09:57 chad fisherSouth Hot-CellRepairTM2 TM2 Source tray removal

TM4 optics tray was installed onto the old TM2 source tray yesterday and tray filled with non-active metal scrap. Tray inserted into transfer frame 95% yesterday. During insertion the ball nut of the transfer jig became unfastened from its drive plate. This will have to be fixed before the jig can be used reliably again however we were able to finish the job...the transfer jig is 20 years old now so it is not entirely suprising that it needs some attention.

Today the Tm2 tray final install into the transport tray occurred by driving the tray drive screw and bringing the tray into the transfer frame the last inch 1/2 or so. "Feet" (ITA2380) had to be removed from sliding tray assembly to fit in the box however upon attempting this is was immediately clear that one of the screws was stuck and must have been cross threaded during assembly. As as result the entire drive bracket (ITA2375) had to be removed form the source tray to allow final insertion into the box.

11 handles from spent target transfers, 1 plastic bin box, Ta LP test target TRI coil, 1 aluminum box, sockets and extensions from spent target transfers and 5 obsolete legs from previous source tray replacements were amoung the items disposed of with the spent source tray.

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  1880   Friday, March 01, 2019, 10:23 Travis CaveSpent Target VaultStandard Operation  Source tray moved

 The old TM#2 source tray and TM#4 optics tray have been removed from the vault and placed into the spent target storage on tray 9 which is meant for source trays.

  1881   Tuesday, March 05, 2019, 07:20 David WangConditioning StationRepairTM2 TM2 HV test at TCS

Spark between HV cover vertical mesh plate and HS 60KV  bias connecting clamp 90degree angle at 55 KV on TM2 top. HV cover is removed to test above  55KV. The spark triggered TH and SHC ventilation secondary alarm.

  1882   Tuesday, March 05, 2019, 09:38 chad fisherSouth Hot-CellRepair  Transfer Fixture Repair

Transfer fixture has been remotely disassembled to the point where the ball nut lock plate assembly can be inserted into the tool port and the plate replaced by hand in the tool port without having to enter the hot cell. Straight head screws will be replaced with SHCS to facilitate easier re-assembly and future disassembly.

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