Halls A and C Spectrometer Support Group Whiteboard

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ePAS permits

  • ePAS info in the EH&S manual: https://www.jlab.org/ehs/ehsmanual/ePAS__manual%20section%202_rev0.htm
  • Hall C Moller - operation and measurement: JLab-PTW-1307
  • Compton laser lab: JLab-PTW-1098
  • Hall A Compton: JLab-PTW-1359
  • NPS power supply LOCAL operation: JLab-PTW-1617
  • NPS correctors - LOCAL operation: JLab-PTW-1638
  • HMS Quads: JLAB-PTW-1699
  • HMS Dipole: JLAB-PTW-1701
  • SBS power supply LOCAL operation: JLAB-PTW-1703
  • SBS corrector LOCAL operation JLAB-PTW-1722
  • Power supply repair and maintenance (Ellen)
  • Hall C Spectrometer rotation reset JLAB-PTW-1723
  • Hall C Spectrometer rotation (remote or local) JLAB-PTW-1605-rev1
  • HMS dipole switch replacement (Joe): JLAB-IC-1284, JLAB-PTW-1593
  • Grinch (Big Bite): JLAb-PTW-2148
  • Cryo Heidi JLAB-PR-1203
  • Spectrometer gas systems (Chandan, Bill)

Hall A Work for GEP (next SAD)

  • Moller dipole power supply
  • Power for ECAL racks
  • Moller magnet vacuum (Ellen)
  • Compton laser mirror replacement (Dave w/help from Lars)
  • Compton photon detector table repair (Samantha?)
  • Big Bite related tasks (won't be used)
  • Pull all Hall A left arm U-tubes, install jumper to N2 return. (heidi)

Hall C Work for LAD

  • Power for GEM racks (Joe?)
  • NPS calorimeter and sweeper removal
  • All the things for getting SHMS working again - bender will be reinstalled (all). See Cryo "SAD" list below
  • Figure out SHMS encoder drift

Priority Items

  • HMS drift chamber low voltage supply replacements
  • Moller maintenance ePAS
  • SBS corrector ePAS
  • Sieve slit controllers ePAS
  • Guards on HMS dipole leads-(Lars)
  • Oscillator for LN2 level meter
  • BigBite Argon manifold pressure sensor erratic. Need to clean the connections (this is resolved right?)
  • SBS Argon pressure sensor bad?
  • Readout for LCW pressure sensors added at end of beamline walkway (not started)
  • Work with Brad and Steve Lassiter to get Skylla10 moved from physical hardware to virtual machine
  • Transformer for ECAL heater power. Need 480 VAC, 200A supply
  • Version control software for Hall C PLC code
  • VVUs for capacitor banks? I just had this idea and want to explore it as an option....
  • BigBite supply polarity switch manual control

Cryo

Build local valve control boxes with local read out. (Heidi-in progress)

op check/repair hall C vacuum gauges (in progress - Lars)

ePass for bayonet operations (Heidi -Done)

Check all JT actuators, ensure belt is functional and in the correct orientation. (Lars) Insulate HMS N2 4k shield (stinger) return line. DONE

Repair calibrate warm return valve spares. (Heidi-Done)

Build spare ball valve for SHMS 4k transfer line (Heidi-Done)

Repair calibrate JT valve spares. (Lars)

Troubleshoot HMS Quad Vac gauges. (Lars)

Update code for the new temperature sensor installed on the HX N2 vent on the HMS. (Ellen?)

Check penning gauges on HMS Quads (software or hardware problem?) (Lars)

Reconfigure Hall A warm return lines (Heidi-Done)

PLC/Code changes (Heidi/Ellen-in progress)



SAD

Troubleshoot HMS Q1 LN2 temp sensors. (Heidi-SAD)

Check HMS Quad magnet leads for leaks/repair. (Heidi-SAD)

Troubleshoot HMS Dipole LN2 siphon temp. (Heidi-SAD)

Troubleshoot HMS Q1 PT-17/PT-18 temp sensors. (Heidi-SAD)

Install environmental splices SHMS Dipole liquid level line (Heidi-SAD)

Cool SHMS Dipole, Q3, Q2, Q1. (Heidi)

After HB magnet electronics controls installation complete, cool HB Magnet. (Heidi)

Repair lead leak on HMS Dipole leads.(Heidi/Lars)

Cool HMS Dipole.(Heidi)

Insulate stinger N2 return line (Lars)

Add "T's" and pump out ports to HMS magnet vacuum gauge ports. (Lars)

Move temps from Honeywell to PLC controls. (if channels are available)

Extend HMS Q1 warm return control wires and re-terminate/calibrate. (Heidi-pigtail made/SAD)

Remove actuators from right arm magnets (Hall A). (Dipole/Q3 complete) (Heidi)

Insulate SHMS Warm return line across pivot. (Lars)

Pump-out (CVI) replacement (Larry)


Sad? Maybe?

De-sting SHMS 4k He supply transfer line. (Heidi)? De-sting SHMS DI 4k He supply line. (Heidi)?

Repair SHMS 4k supply transfer line ball valve assembly. (Heidi/Lars) Install new PHPK vac valve (techs)

Re-sting SHMS 4k transfer line/DI 4k supply. (Heidi)

Move the SHMS lead flow controllers and coordinate with the Cryo group (need engineering support).

SHMS Lead flow, - add upstream valves to isolate each lead flow, for easier replacement of valve/flow meter. (install when meters are moved to new location-need engineering /design support)

Electrical

Isolating power switches on HMS power supplies

Specifications for power supplies for HKS (coordinate with Onish)

Get Unser repaired --> not possible. Dave Mack took to Fast Electronics

capacitor bank VVUs for hall A magnets

Spectrometers

Make HMS dipole NMR lock better

Finish refurbishing NMR multiplexer for hall C

Rotation software improvement for hall C

skylla10 migration

hms quad vacuum gauges not working

Hall probes/NMR (?) for HKS

Gas systems

Hall C gas shed pi rebuild (done - need PVs for alarm handler)

Do We Still Need To Do These?

Possible Future Items

Reboot switch for I2C devices

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