Difference between revisions of "How-to"

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* [[Analysis How-to]]
 
* [[Analysis How-to]]
  
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* [[Beam Checkout Procedures]]
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* [[Beam Checkout Procedures]] Includes -
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** Includes -
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** Raster checks
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*** Raster checks
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** Harp scans
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*** Harp scans
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** Carbon hole check
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*** Carbon hole check
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* Hall C Raster
 
* Hall C Raster
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* Gas Shed
 
* Gas Shed
 
** Drift Chamber Gas System
 
** Drift Chamber Gas System
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*** If the 'Low PSI' interlock has tripped it may mean that the Argon has run out. Talk to an expert '''first'''.  You can reset the interlock through the 'Hall C Gas Shed Interlocks/Controls' GUI [[EPICS/Accelerator_Screens]]
 
*** See [https://hallcweb.jlab.org/safety-docs/current/Standard-Equipment-Manual.pdf Standard Equipment Manual]
 
*** See [https://hallcweb.jlab.org/safety-docs/current/Standard-Equipment-Manual.pdf Standard Equipment Manual]
 
***[https://hallcweb.jlab.org/munin/gas_shed-day.html Flow and Temperature Charts] (generated by iochcgs.acc.jlab.org)
 
***[https://hallcweb.jlab.org/munin/gas_shed-day.html Flow and Temperature Charts] (generated by iochcgs.acc.jlab.org)
  
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* [[Big Screen / Wall TVs]]
 
* [[High_Voltage|High Voltage Controls]]
 
* [[High_Voltage|High Voltage Controls]]
 
** Run 'go_hv' and follow instructions
 
** Run 'go_hv' and follow instructions
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* [https://hallcweb.jlab.org/DocDB/0009/000957/001/NonInvasiveBCMCalibration.pdf How to perform a BCM calibration]
 
* [https://hallcweb.jlab.org/DocDB/0009/000957/001/NonInvasiveBCMCalibration.pdf How to perform a BCM calibration]
 
* [https://hallcweb.jlab.org/DocDB/0010/001006/001/Radiator.pdf How to operate the Hall-C Radiator (J/Psi Experiment)]
 
* [https://hallcweb.jlab.org/DocDB/0010/001006/001/Radiator.pdf How to operate the Hall-C Radiator (J/Psi Experiment)]
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=== [[Expert Information]] ===
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{{:Expert Information}}
  
 
== Spectrometer Magnets ==
 
== Spectrometer Magnets ==
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*[[Resetting Magnet Interlocks]]
 
*[[Resetting Magnet Interlocks]]
 
*How-to power cycle SHMS PLC I/O chassis: https://logbooks.jlab.org/entry/3625900
 
*How-to power cycle SHMS PLC I/O chassis: https://logbooks.jlab.org/entry/3625900
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* [https://logbooks.jlab.org/entry/3933073 Resetting the "ioc heartbeat epics communications" (start by clicking on the heart at upper left of the magnet controls screen]
  
 
== How to Rotate the HMS and SHMS ==
 
== How to Rotate the HMS and SHMS ==
 
*[[Spectrometer Rotation]]
 
*[[Spectrometer Rotation]]
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== How to change HMS or SHMS momentum ==
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*[https://hallcweb.jlab.org/wiki/index.php/How_to_operate_and_monitor_the_Spectrometer_Magnets Changing momentum]
  
 
== SHMS Detectors ==
 
== SHMS Detectors ==
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* [https://hallcweb.jlab.org/DocDB/0008/000836/001/HallCTargetConfiguration2-6-17.pdf Hall C target configuration for Spring 17 running]
 
* [https://hallcweb.jlab.org/DocDB/0008/000836/001/HallCTargetConfiguration2-6-17.pdf Hall C target configuration for Spring 17 running]
 
* [https://hallcweb.jlab.org/DocDB/0010/001006/001/Radiator.pdf How to operate the Hall-C Bremsstrahlung Radiator for the J/Ψ -007 Experiment (Spring 2019)]
 
* [https://hallcweb.jlab.org/DocDB/0010/001006/001/Radiator.pdf How to operate the Hall-C Bremsstrahlung Radiator for the J/Ψ -007 Experiment (Spring 2019)]
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== Hall C Coffee Machine ==
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* Do not use the milk frother; this will just get nasty. Warm up some milk in the microwave before running the machine.
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* Regularly empty the drip tray and coffee grounds container.
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* You can find a user manual and other information [https://www.usa.philips.com/c-p/EP3241_54/series-3200-fully-automatic-espresso-machines/support here]
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* The machine needs regular descaling; a warning light will tell us when. Instructions on how to do this are [https://www.usa.philips.com/c-f/XC000004201/how-to-descale-my-philips-espresso-machine here].
  
 
== Legacy Documentation ==
 
== Legacy Documentation ==

Latest revision as of 13:31, 10 March 2023

NOTE: If you can't solve the problem in 1 hour you MUST then contact the Run Coordinator! (See also Experts on call)

General How-to's

  • Make HCLog entries using the logbook page, or by running 'hclog' in a terminal.
    • Please be concise, but clear. Assume you will need to search for, and understand, an entry 12 months from now (or longer).

Expert Information

This page tries to capture/consolidate some low-level details in the Hall C Counting House configuration. In general every directory/system will contain one or more README files describing the relevant software/philosophy etc. The majority of the configuration files/code are also stored in git repos with remotes on the hallcgit.jlab.org host.

Historically most of these items have been managed by Brad Sawatzky [1] and Stephen Wood [2]. Feel free to contact them with questions.

Detector/DAQ 'pre-beam' Checklist

This is a copy of the Detector/DAQ 'pre-beam' Checklist that is generally completed prior to beam delivery into the Hall (after a SAD or an extended down). It is intended to ensure that basic operational things like crate fans, crates, HVs, gas configuration, etc are confirmed and logged. This is typically requested by the Hall Work Coordinator (ie. Walter Kellner) and gets logged to the HCLOG. An example can be found here HCLog 3968308.

Print out two copies. One for HMS, one for SHMS: File:Detector readiness checklist.pdf, (File:Detector readiness checklist.ods)

Spare Hardware Locations

  • CAMAC, NIM: Hall C Counting House cabinets (in electronics room by door to the outside)
  • VME: Counting House, 2nd floor, blue module cabinet in Jack Segal's area
  • HV: Counting House, 2nd floor, cabinet in "G0 cage"
  • PMTs, HV bases: EEL/126 cabinet at rear of room (labelled, standard 'A12' keyed lock)
  • Wiener Crate control units (front panel, ethernet, etc): EEL/126 cabinet

ESB / Building 23 (NE corner)

This has been my staging and test area for a number of years and contains several DAQ test beds supporting several groups. The hardware, cabling, modules in that space should generally be considered as either 'in-use' or as being staged for a near-term future experiment (ie. NPS/LAD/GEn-RP). The experiment on the floor takes priority, of course, but don't steal from future experiments without actively following up on replacing that hardware.

  • CAEN Sy45xx crates and modules (NPS)
  • Wiener VXS crates (NPS)
  • FADCs, SD, TI, boards etc (NPS)
  • Cabling (NPS, GEn-RP)

Spectrometer Magnets

How to Rotate the HMS and SHMS

How to change HMS or SHMS momentum

SHMS Detectors

HMS Detectors

Polarized 3He target in Hall C

Hall C Cryo-target

Hall C Coffee Machine

  • Do not use the milk frother; this will just get nasty. Warm up some milk in the microwave before running the machine.
  • Regularly empty the drip tray and coffee grounds container.
  • You can find a user manual and other information here
  • The machine needs regular descaling; a warning light will tell us when. Instructions on how to do this are here.

Legacy Documentation

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