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  RH-ISAC, Page 16 of 138  Not logged in ELOG logo
ID Date Author Category Type Module Target/Number Subject
  2455   Tuesday, June 13, 2023, 09:55 Frank SongITEStandard OperationTM4TiC#5module disconnection

 TM4 with TiC#5 was disconnected in ITE and moved to NHC.

Attachment 1: TM4_with_TiC#5_(FEBIAD)disconnected_in_ITE_20230613.pdf
TM4_with_TiC#5_(FEBIAD)disconnected_in_ITE_20230613.pdf TM4_with_TiC#5_(FEBIAD)disconnected_in_ITE_20230613.pdf TM4_with_TiC#5_(FEBIAD)disconnected_in_ITE_20230613.pdf
  2454   Monday, June 12, 2023, 07:36 David WangConditioning StationStandard Operation  TCS water filters annual change.

Plant group changed TCS water filters last Friday. 4 filters on resin can inet /outlet sides and filters(4 in one cartridge house)on pump return line have been changed. Triumf maintenance tags on filters have been updated. No water leak after job. The TCS TK2 water level dropped  from 20" to 16" because of the job. I will refill the level to 28" today. 

TCS:TK2 is refilled to 28".

  2453   Tuesday, June 06, 2023, 17:36 Carla BabcockITWStandard OperationTM2TiC#6Module conditioning

Conditioned TM2 up to 48kV in ITW. Some sparks and current is not very stable. Drawing about 178uA at 48kV.

  2452   Tuesday, June 06, 2023, 15:10 Antoniette YapSpent Target VaultMaintenance   Annual Inspection of Main and Mini Storage Vaults

The annual inspection of the mini-storage vault and main storage vault was completed June 23, 2023. The following items were checked:

  • Cabling and cable management
  • Connectors
  • Controls box - internal wiring and components, functionality
  • Limit switches - functionality, wiring, mounting
  • Motor
  • Bearings
  • Set screws
  • Miscellaneous fasteners

The inspection was generally successful. A couple of minor findings were:

  • Bearings for both the main and mini storage vaults must be greased. This is planned for a different day as it involves removing the mini vault's door.
  • There was a small piece of metal on the track for the mini storage vault which was causing the door to "bump" over it as it passed over. This piece was removed and the door behaved normally.
  • The wheel track for the main storage vault was dirty - it was cleaned
  • It was suggested that the 120 VAC power cable for the mini storage vault controls box should be connectorized - this will be added to the "to-do list" for the future

 

  2451   Tuesday, May 30, 2023, 14:19 David WangITE/ITWStandard Operation  BL2A MAA primary beam exclusion area ASU test.

MAA ASU test have been done following document 154779. All three tests in document are passed. DCR Jas has all test documents.

This test includes the functional test on TH emergency roof hatch which is located at the west end of TH roof. The hatch could be opened and closed properly from TH inside.

  2450   Tuesday, May 30, 2023, 14:15 David WangITWStandard Operation  ITW water signal interlock check is done.

ITW water signal interlock check is done. All ITW water signals including HS, EE, Coil , Ta, Tu, MSP, C-window, HVC1, HVC2, 2A-dump, 2A -shielding plug, 2A-tank, 2A-window, and 2A-collimator are checked. All  water signal interlock work fine.

  2449   Tuesday, May 30, 2023, 12:30 Frank SongITWStandard OperationTM2TiC#6gas lines pump out in ITW Faraday Cage

 Gas lines pumped down at electric room for TM2 at ITW is done, leak rate 0.0e -8 <1.0e -3 T P pressure

Attachment 1: gas_lines_pumped_out_to_ITW.JPG
gas_lines_pumped_out_to_ITW.JPG
  2448   Tuesday, May 30, 2023, 12:23 Frank SongITEStandard OperationTM4TiC#5gas lines pump out in ITE Faraday Cage

argon is being supplied at 6 psi to TM4. 

Attachment 1: Argon_supplied_at_6psi_to_TM4_in_ITE.JPG
Argon_supplied_at_6psi_to_TM4_in_ITE.JPG
  2447   Monday, May 29, 2023, 12:52 Frank SongITWStandard OperationTM2TiC#6Module Connection

 TM2 with TiC#6 was connected in ITW (FEBIAD), turbo pumps were started successfully.

Attachment 1: TM2_with_TiC#6_connected_in_ITW_(FEBIAD)_20230529.pdf
TM2_with_TiC#6_connected_in_ITW_(FEBIAD)_20230529.pdf TM2_with_TiC#6_connected_in_ITW_(FEBIAD)_20230529.pdf TM2_with_TiC#6_connected_in_ITW_(FEBIAD)_20230529.pdf TM2_with_TiC#6_connected_in_ITW_(FEBIAD)_20230529.pdf
  2446   Thursday, May 25, 2023, 13:10 David WangConditioning StationMaintenanceTM2 TCS MP1 is replaced due to poor performace.

TCS MP1 is replaced due to poor performance( system shows unstable and high reading on TCSCG1A and high TP1,TP2 current draw) . The pump is edward 15i scroll pump. Since vacuum group has no same spare pump, i have to use SMP roughing pump SMP:MP1 which is a  same pump to replace it.. After the replacement ,the TCS:CG1A and TP1, TP2 current draw are back to normal. The original TCSMP1 was surveyed. Swipes on intake and exhaust port are 300 counts and 1000counts. RAM contact field measurement are from 0.2 to 0.5 usv/hr. It is stored in TH. We will try to refurbish this pump first and use as for SMP:MP1. If we can not refurbish it, a new 15i pump will be purchased for SMP:MP1.

2023-05-31: Opened pump tip seal chamber and swiped chamber inside. The contamination level :1200 counts on 44-2.  The tip seal and tip seal chamber o ring need to be replaced . Checked gas ballast knob. The O-ring inside knob is in good condition. Checked exhaust port o-ring. it is in good condition. spare part PO will be issued soon.

2023-06-14:Tip seals and o-ring have been replaced on original TCS:MP1. After, it was tested at TCS for 48 hours. The pump is much quiet on operation, and the pump body temperature is mild. The final  inlet pressure this pump could get with TCS PV1 closed is about 23 mtorr.  The result is good. I installed it back to TCS vacuum station and reinstalled SMP:MP1 back to SMP vacuum station.  

 

  2445   Wednesday, May 24, 2023, 17:25 Carla BabcockITERepairTM4TiC#5Issues with anode short

When I tried to raise the anode voltage in cathode bias mode on May 23 evening, I found the target or tube shorted to HV common. Investigations in the faraday cage today showed the same. I removed all the new electronics (resistors, gemovs, etc) from the power supply to no effect, so I disconnected the TGHT supply and pushed it away from the busbars. There was still a short. David Frank and I then went down to the pit and disconnected everything to measure the module. The module itself showed no short, and the bus bars in the chase for TGHT showed no short, though the ones for TBHT still showed the short.

David and Frank reconnected the module and I disconnected the TBHT supply in the faraday cage, then I found no shorts to TGHT/TBHT. When I reconnected everything there were still no shorts. There must have been a short in the TBHT line in the faraday cage, and another short in the TGHT line in either the faraday cage or on the module top. Both these shorts got resolved by taking everything apart. Still not sure how it happened.

Next I found I could not raise the anode voltage above 230V, it looked like it was current limiting but since the current limit was high, I figured it had something to do with the new electronics installed. I disconnected them all the in cage and that solved the problem, and then reconnecting the gemovs that go from the PSU terminals to HV common caused the problem again, so I left those disconnected.

  2444   Wednesday, May 24, 2023, 08:34 David WangConditioning StationStandard OperationTM2TiC#6TM2 HS line helium pressure check and gasline fittins leak check.

TM2 HS line helium leak check is done. leak detector base LR 1.8xE-8atm.cc/sec.  helium pressure 70 psi. 5 minutes test. no change on LD leak rate.    I spray lots helium to gas line adaptor and fittings. No leak.has been found  at this base leak rate level.  Since the TCS MP1 has some  issue ,this time the base leak rate on LD only can get to 1.8Xe-8 atm.cc/sec at this moment instead of 0.0xE-9.  The low E-8  level is not perfect, but  i  have no concern on it.

  2443   Monday, May 22, 2023, 15:06 Carla BabcockITEStandard OperationTM4TiC#5Module conditioning

Yesterday and today module conditioning was done on Tm4 in ITE. This is the first ramp up after the shutdown and ITE is planned to run at high voltages for the first weeks. The module is behaving well - went up to 40kV yesterday, stayed there for an hour, and up to 46kV today. Current draw is 113uA at 46kV. No serious sparking.

 

Tuesday, May 23, 2023, 09:32 :  Ramping up again, easy to 45kV. Drawing 132uA at 49kV. Still behaving quite well.

  2442   Friday, May 19, 2023, 09:39 Frank SongSouth Hot-CellStandard OperationTM2TiC#6leak/electrical check

 TM2 with TiC#6 was checked on SHC, see pic attached pls.

Attachment 1: TM2_with_TiC#6_leak_and_eletrical_check.png
TM2_with_TiC#6_leak_and_eletrical_check.png
  2441   Friday, May 12, 2023, 09:56 Adam NewsomeSpent Target VaultStandard Operation  Emergency Close Mechanism Test

 The emergency close mechanism for the Storage Vault door was tested by Travis Cave, Nadia Jorgenson, Adam Newsome, and Jason Zhang. The door was opened to its fully open limit, then closed with the emergency system. 

The test was successful.

  2440   Wednesday, May 10, 2023, 08:40 Frank SongITEStandard OperationTM4TiC#5Module Connection

 TM4 was connected in ITE.  pics attached FYI.

Attachment 1: TM4_with_TiC5_connection_in_ITE_20230509.png
TM4_with_TiC5_connection_in_ITE_20230509.png
Attachment 2: TM4_with_TiC5_all_set_in_ITE_20230510_758AM.JPG
TM4_with_TiC5_all_set_in_ITE_20230510_758AM.JPG
  2439   Monday, May 08, 2023, 10:59 Frank SongNorth Hot-CellStandard OperationTM4TiC#5electrical check/leak check

 TM4 with target TiC#5 installed has been leak checked and electric checked on NHC.

Attachment 1: TM4_with_TiC#5_20230508.png
TM4_with_TiC#5_20230508.png
  2438   Thursday, May 04, 2023, 07:14 David WangSafe Module ParkingStandard OperationTM4  SMP vacuum pumpimg down is stopped.

SMP  vacuum pumping down is stopped. SMP and TM4 venting to atmosphere will be started soon.

  2437   Wednesday, May 03, 2023, 13:22 David WangITEStandard Operation  Argon vented ITE station.

Argon vented ITE station. ITEVV1S and ITGT SV3 were closed after venting.

  2436   Wednesday, May 03, 2023, 11:04 Adam NewsomeCraneMaintenance  Pail Handling Tool - Annual Inspection

The pail handling tool which is used to move 5 gallon pails around the target hall was inspected by A. Newsome, N. Jorgenson, and E. Lahe. The main tool as well as spare were checked for the following items. The tools are in good, working condition. It is noted that some fasteners on the hook assembly were slightly loose, but have been tightened.

  • Inspect structural integrity of long tube - check for bending, warpage, dents, cracks, rust/corrosion
  • Inspect structural integrity of hook assembly - check for bending, warpage, dents, cracks, rust/corrosion
  • Inspect fasteners - check all fasteners installed as per drawings, fasteners are tight
  • Inspect crane interface assembly - check for damage and wear where the tool connects to the crane
  • Check alignment - verify the tool connects to the crane and hangs vertically with no major misalignment (this step was not done - alignment is regularly checked during operations, and there was no concern as the tube was straight)

 Note: these tools are being inspected monthly by D. Wang and F. Song.

Attachment 1: PXL_20230503_172503014.jpg
PXL_20230503_172503014.jpg
Attachment 2: PXL_20230503_172457837.jpg
PXL_20230503_172457837.jpg
Attachment 3: PXL_20230503_172454009.jpg
PXL_20230503_172454009.jpg
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