Difference between revisions of "Halls A and C Spectrometer Support Group Whiteboard"

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== Work delayed by LOTO pause ==
 +
* SBS power supply troubleshooting (Friday, May 24)
 +
* SHMS cooldown (Tuesday, May 28)
 +
* Hall A Compton laser work (Wednesday, May 29)
 +
* Hall C: NPS magnet removal
 +
* Hall A: BigBite removal
 +
* Compton photon table work
 +
 +
== Admin locks applied for longer than 1 week (please list below) ==
 +
* ??
 +
 +
== 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
 +
* Grinch (Big Bite): JLAb-PTW-2148
 +
* Cryo Heidi JLAB-PR-1203
 +
* Spectrometer gas systems (Chandan, Bill)
 +
* Tabletop electronic troubleshooting (Mode 1 and 2) JLAB-PTW-????
 +
 +
== Hall A Work for GEP (next SAD) ==
 +
* Moller dipole power supply
 +
* Power for ECAL racks - 10 NIM crates, up to 300 W each
 +
* Transformer for ECAL heater power. Need 480 VAC, 200A supply
 +
* More GEM low voltage - BB GEMS are moving to SBS
 +
* Interlock switches for ECAL panels (Ellen)
 +
* Moller magnet vacuum (Ellen)
 +
* Compton laser mirror replacement (Dave w/help from Lars)
 +
* Compton photon detector table repair (Sam)
 +
* Compton laser polarization measurement (Sam)
 +
* Big Bite related tasks (won't be used)
 +
* Pull all Hall A left arm U-tubes, install jumper to N2 return. (heidi-Paperwork in progress)
 +
* Decommission left arm supplies (Heidi-work request submitted)
 +
* MOLLER prep: relocate 480 junction box, identify cables above beamline
 +
* Add jmenu controls for GEM LV? Is browser interface sufficient?
 +
* figure out white junction box above beamline for Moller (Joe)
 +
* SBS regulation (Joe)
 +
* ECAL connector soldering (Lars)
 +
* GEM gas line repair (Lars), COMPLETE
 +
* Add rails to rack (Lars), COMPLETE
 +
* Nitrogen dewar for GEMS (Lars)
 +
 +
== 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
 +
* hall C moller compressor comms and filter
 +
* remove NDX detectors from hall C (in progress)
 +
* Guards on HMS dipole leads-(Lars)
 +
* HMS drift chamber low voltage supply replacements
 +
* HMS Shield door motor drive replacement
 +
* Rotation shunt-trip breakers: replace or buy spares (Steve L. suggestion)
 +
* Get circuit breaker reset stick (Steve L. suggestion)
 +
* Label and track NPS equipment (Lars)
 +
* Find Andy's files (?)
 +
 
== Priority Items ==
 
== Priority Items ==
 +
* Check your own PPE
 +
* Have Dave G check your PPE
 +
* Locate Jack's property (all)
 +
* Moller maintenance ePAS
 +
* Sieve slit controllers ePAS
 +
* BigBite Argon manifold pressure sensor erratic. Need to clean the connections
 +
* SBS Argon pressure sensor bad?
 +
* Work with Brad and Steve Lassiter to get Skylla10 moved from physical hardware to virtual machine (Ellen)
 +
* Version control software for Hall C PLC code (Ellen)
  
−
<s>Hall A Moller Polarimeter target magnet testing (Simona's turn when she's ready, and any fixes afterward if necessary)</s> Finally done! :D Everything is working and ran up to full current without issue.
+
== Cryo ==
  
−
Install S0 counter above BB for a cosmics trigger.
 
  
−
Locking bar for the Right Shield House (needs to be installed and demonstrated it will keep door closed)
 
  
−
Jumper bars for SBB coils (in progress)
+
Build local valve control boxes with local read out. (Heidi-in progress)
  
−
Controls for SBB and corrector coils (waiting for water to the magnets)
+
op check/repair hall C vacuum gauges (in progress - Lars)
  
−
Install magnet leads for SBB (535 MCM cable) (cables run, waiting on copper bus bars) (connections still need to be torqued)  
+
Insulate HMS N2 4k shield (stinger) return line.(Lars)
  
−
Connect magnet leads for SBB corrector magnets (2 AWG welding cable) (cables run, Reagan is making final connections)
+
Repair calibrate JT valve spares. (Lars)
  
−
re-install ground fault detector in LQ1 supply - requires configuration of module (not started)
+
Update code for the new temperature sensor installed on the HX N2 vent on the HMS. (Ellen?)
  
−
Gas manifolds for GEM gas cylinders (started)
+
Check penning gauges on HMS Quads (software or hardware problem?) (Ellen/Lars)
  
−
Nitrogen supply for GEM gas cylinder valves (Clippard valves and cylinder controller) (not started)
+
PLC/Code changes (Heidi/Ellen-in progress)
  
−
Gas mix controller and MFCs for GEM detectors (not started)
+
Assemble L Tube/relief valve assembly (Lars)
  
−
Readout for LCW pressure sensors added at end of beamline walkway (not started)
+
U-Tube ePass/fall protection, Hall A (Heidi) -Paperwork submitted
  
−
Re-install crash buttons in Hall A Counting Room - RQ1 button for BB and new ones for SBS supply and correctors (Done, needs tested)
+
Remove all hal A left arm U-tubes
  
−
Install thermistors on SBS/Big Bite magnets and junction boxes. <s>ADC node boards made and parts stuffing is ongoing.</s> Should have enough boards now. Software is basically done, but will need to be updated after all thermistors are in place.
 
  
−
Install Klixons on SBB and connect to power supply.
 
  
−
<s>Install Klixons on BB and connect to power supply.</s> Done.
 
  
−
<s>Rpi for threshhold monitoring for DAQ</s> Done.
 
  
−
Test LQ2 FuG with new polarity reversal switch.
+
'''SAD'''
  
−
Verify LQ2 has LCW reconnected.
+
Warm HMS Dipole to 90K and pump
  
−
== Would Be Good To Do Items ==
+
Troubleshoot/repair HMS DI He in and He 3 temp sensors -Done
  
−
Re-locate NDX detectors in Hall A - one in DAQ bunker and the other in BB GEM bunker
+
Troubleshoot HMS Q1 LN2 temp sensors. (Heidi-SAD)
  
−
Roofing material for SBS GEM bunker (located some possible material - will run past Jessie)
+
Check HMS Quad magnet leads for leaks/repair. (Heidi-SAD)
  
−
Remove actuators from right arm magnets. (Dipole complete)
+
Troubleshoot HMS Dipole LN2 siphon temp. (Heidi-SAD)
  
−
clean up R-arm supply platform
+
Troubleshoot HMS Q1  PT-17/PT-18 temp sensors. (Heidi-SAD)
  
−
clean up L-arm supply platform
+
Install environmental splices SHMS Dipole liquid level line (Heidi-SAD)
  
−
Swap out MFCs in VDC mixing system
+
Cool SHMS Dipole, Q3, Q2, Q1. (Heidi)
  
−
Remove three Oxford power supplies from HMS
+
After HB magnet electronics controls installation complete, cool HB Magnet. (Heidi)
  
−
HMS/SHMS Heater and fan changes, fixes, upgrades etc.
+
Repair lead leak on HMS Dipole leads.(Heidi/Lars)
  
−
PARTS ORDER LIST FOR 1 OCT
+
Cool HMS Dipole.(Heidi)
  
−
-2 wire cable
+
Insulate stinger N2 return line (Lars)
−
ferrules
+
−
hardware #6
+
  
−
== Possible Future Items ==
+
Add "T's" and pump out ports to HMS magnet vacuum gauge ports. (Lars)
  
−
Replace air compressor in Hall A Gas Shed (on hold till next fiscal year)
+
Move temps from Honeywell to PLC controls. (if channels are available)  
  
−
Remote reset for Hall C spectrometer motion (maybe next year)
+
Extend HMS Q1 warm return control wires and re-terminate/calibrate. (Heidi-pigtail made/SAD)
 +
 
 +
Remove actuators from right and left arm magnets (Hall A). (Dipole/Q3 complete) (Heidi, Lars)
 +
 
 +
Pump-out (CVI) replacement (Larry)-on hold
 +
 
 +
Install new lead flow controller HMS Dipole (Heidi)
 +
 
 +
 
 +
'''''Not This SAD'''''
 +
 
 +
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, maybe
 +
 
 +
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 (Ellen/Sam)
 +
 
 +
check/label HMS quad pivot cabinet with proper electrical labels if needed
 +
 
 +
== Spectrometers ==
 +
 
 +
Make HMS dipole NMR lock better, replace gain pot with spare?
 +
 
 +
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
 +
 
 +
Add 2nd raspberry pi for HMS prescale
 +
 
 +
== Gas systems ==
 +
 
 +
== Do We Still Need To Do These? ==
 +
 
 +
== Possible Future Items ==
  
−
Install new liquid level meters on SHMS- Install done, waiting on software and LN2 probe cal to go live (need Steven).
+
Reboot switch for I2C devices

Latest revision as of 08:22, 15 July 2024

Work delayed by LOTO pause

  • SBS power supply troubleshooting (Friday, May 24)
  • SHMS cooldown (Tuesday, May 28)
  • Hall A Compton laser work (Wednesday, May 29)
  • Hall C: NPS magnet removal
  • Hall A: BigBite removal
  • Compton photon table work

Admin locks applied for longer than 1 week (please list below)

  •  ??

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
  • Grinch (Big Bite): JLAb-PTW-2148
  • Cryo Heidi JLAB-PR-1203
  • Spectrometer gas systems (Chandan, Bill)
  • Tabletop electronic troubleshooting (Mode 1 and 2) JLAB-PTW-????

Hall A Work for GEP (next SAD)

  • Moller dipole power supply
  • Power for ECAL racks - 10 NIM crates, up to 300 W each
  • Transformer for ECAL heater power. Need 480 VAC, 200A supply
  • More GEM low voltage - BB GEMS are moving to SBS
  • Interlock switches for ECAL panels (Ellen)
  • Moller magnet vacuum (Ellen)
  • Compton laser mirror replacement (Dave w/help from Lars)
  • Compton photon detector table repair (Sam)
  • Compton laser polarization measurement (Sam)
  • Big Bite related tasks (won't be used)
  • Pull all Hall A left arm U-tubes, install jumper to N2 return. (heidi-Paperwork in progress)
  • Decommission left arm supplies (Heidi-work request submitted)
  • MOLLER prep: relocate 480 junction box, identify cables above beamline
  • Add jmenu controls for GEM LV? Is browser interface sufficient?
  • figure out white junction box above beamline for Moller (Joe)
  • SBS regulation (Joe)
  • ECAL connector soldering (Lars)
  • GEM gas line repair (Lars), COMPLETE
  • Add rails to rack (Lars), COMPLETE
  • Nitrogen dewar for GEMS (Lars)

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
  • hall C moller compressor comms and filter
  • remove NDX detectors from hall C (in progress)
  • Guards on HMS dipole leads-(Lars)
  • HMS drift chamber low voltage supply replacements
  • HMS Shield door motor drive replacement
  • Rotation shunt-trip breakers: replace or buy spares (Steve L. suggestion)
  • Get circuit breaker reset stick (Steve L. suggestion)
  • Label and track NPS equipment (Lars)
  • Find Andy's files (?)

Priority Items

  • Check your own PPE
  • Have Dave G check your PPE
  • Locate Jack's property (all)
  • Moller maintenance ePAS
  • Sieve slit controllers ePAS
  • BigBite Argon manifold pressure sensor erratic. Need to clean the connections
  • SBS Argon pressure sensor bad?
  • Work with Brad and Steve Lassiter to get Skylla10 moved from physical hardware to virtual machine (Ellen)
  • Version control software for Hall C PLC code (Ellen)

Cryo

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

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

Insulate HMS N2 4k shield (stinger) return line.(Lars)

Repair calibrate JT valve spares. (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?) (Ellen/Lars)

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

Assemble L Tube/relief valve assembly (Lars)

U-Tube ePass/fall protection, Hall A (Heidi) -Paperwork submitted

Remove all hal A left arm U-tubes



SAD

Warm HMS Dipole to 90K and pump

Troubleshoot/repair HMS DI He in and He 3 temp sensors -Done

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 and left arm magnets (Hall A). (Dipole/Q3 complete) (Heidi, Lars)

Pump-out (CVI) replacement (Larry)-on hold

Install new lead flow controller HMS Dipole (Heidi)


Not This SAD

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, maybe

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 (Ellen/Sam)

check/label HMS quad pivot cabinet with proper electrical labels if needed

Spectrometers

Make HMS dipole NMR lock better, replace gain pot with spare?

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

Add 2nd raspberry pi for HMS prescale

Gas systems

Do We Still Need To Do These?

Possible Future Items

Reboot switch for I2C devices

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