Difference between revisions of "Pol He-3 Target Information"

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* [[Pol He3 Field Mapping Data]]
 
* [[Pol He3 Field Mapping Data]]
 
* [https://docs.google.com/spreadsheets/d/e/2PACX-1vTqbYehkZqdvYdIK-cLOVyKruMwb2Iz2P8VOG18bx2UlJSTLjgZKvkS33gsfxtFNcj-Kq-uXj-JTkw1/pubhtml Field Correction Settings for A1N]
 
* [https://docs.google.com/spreadsheets/d/e/2PACX-1vTqbYehkZqdvYdIK-cLOVyKruMwb2Iz2P8VOG18bx2UlJSTLjgZKvkS33gsfxtFNcj-Kq-uXj-JTkw1/pubhtml Field Correction Settings for A1N]
−
* [https://userweb.jlab.org/~jixie/A1N/FieldRunPlan/Target_Field_Coils_D2N.pdf Field Correction Settings for D2N]
+
* [[Media:Target_Field_Coils_D2N.pdf|Field Correction Settings for D2N]] ([https://userweb.jlab.org/~jixie/A1N/FieldRunPlan/Target_Field_Coils_D2N.pdf Original])
 +
 
 +
=== Pol He3 Field Map from TOSCA simulation ===
 +
* [[TOSCA simulation for Pol He3 Field]]
  
 
=== Circular Raster Information ===
 
=== Circular Raster Information ===
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Type in the number for the fields you wish to reset and hit return.
 
Type in the number for the fields you wish to reset and hit return.
 +
 +
== Reference Cell Information ==
 +
* [[Media:A1n_d2n_Ref_cell_windows.pdf|Reference Cell Window Thicknesses]] (As posted to the Analysis Log here: https://hallcweb.jlab.org/elogs/A1n-d2n+Combined+Analysis/59 )
  
 
== Production Target Cell Information ==
 
== Production Target Cell Information ==
  
 +
=== PolHe3 Polarization Citation/Reference Link ===
 +
Final Cell polarizations and supporting documentation is (will be) on the Hall C DocDB
 +
  https://hallcweb.jlab.org/doc-private/ShowDocument?docid=1182
 +
Use that URL as a citation/reference in papers.
 +
 +
=== Additional Details ===
 
  [[Media:cell_polarizations.pdf|Nominal Cell Status summary slide]]  
 
  [[Media:cell_polarizations.pdf|Nominal Cell Status summary slide]]  
  
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=== Currently Installed Cell ===
 
=== Currently Installed Cell ===
−
*; Austin
+
*; Briana
−
** Installed in target: 03/20/2020 to present
+
** '''Re-'''Installed in target: 08/21/2020
−
** Characterization Document: [[Media:Production_Cell_Info_-_Cell_Austin.pdf]]
+
** Originally Installed in target: Cell for Initial testing 12/15/2019 to 01/04/2020
 +
** Characterization Document: [[Media:Production_Cell_Info_-_Cell_Briana.pdf]]
  
 
=== Cells Being Readied for Installation ===
 
=== Cells Being Readied for Installation ===
−
*; Tommy -- next cell
+
*; Tommy -- next cell; being remounted
−
** Installed in target:  (Mounted and ready for install; Planned for next Production Cell)
+
** Installed in target:  (Soon ready for install; Planned for next Production Cell)
 
** Characterization Document: [[Media:Production_Cell_Info_-_Cell_Tommy.pdf]]
 
** Characterization Document: [[Media:Production_Cell_Info_-_Cell_Tommy.pdf]]
  
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=== Older Installed Cells ===
 
=== Older Installed Cells ===
 +
*; Austin
 +
** Installed in target: 03/20/2020 to 8/21/2020
 +
** Characterization Document: [[Media:Production_Cell_Info_-_Cell_Austin.pdf]]
 +
 
*; Big Brother
 
*; Big Brother
 
** Installed in target: 02/12/2020 to 03/13/2020
 
** Installed in target: 02/12/2020 to 03/13/2020
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** Installed in target: 01/04/2020 to 02/10/2020
 
** Installed in target: 01/04/2020 to 02/10/2020
 
** Characterization Document: [[Media:Production_Cell_Info_-_Cell_Dutch.pdf]]
 
** Characterization Document: [[Media:Production_Cell_Info_-_Cell_Dutch.pdf]]
−
 
−
*; Briana
 
−
** Installed in target: Cell for Initial testing 12/15/2019 to 01/04/2020
 
−
** Characterization Document: [[Media:Production_Cell_Info_-_Cell_Briana.pdf]]
 
−
 
  
 
*; Fulla
 
*; Fulla
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=== Addition Documentation ===
 
=== Addition Documentation ===
 
*  Spreadsheet from Chris Jantzi (July 8, 2020) : [[Media:A1n Cell Characteristics - 08Jul2020.xlsx]]
 
*  Spreadsheet from Chris Jantzi (July 8, 2020) : [[Media:A1n Cell Characteristics - 08Jul2020.xlsx]]
 +
* [[Media:Target_Summary_-_Wall_Thickness.xlsx]]
 +
* Mingyu Chen (March 22, 2021): [[Media:Production_Cell_Info_-_Pumping_Chamber_Wall_Thickness.pdf]]
 +
* "Frequency shifts in the EPR spectrom of 39K due to spin-exchange collisions with polarized 3He and precise 3He polarimetry" (Kappa_0) Paper: [https://arxiv.org/abs/2109.04375 arXiv link], [[Media:kappa_0-draft-16Oct2021.pdf|Local copy (16Oct2021)]]
  
 
== Additional Documentation ==
 
== Additional Documentation ==

Latest revision as of 11:31, 30 August 2022

Target Operator Instructions

Checklists

Expert Information

Reference Cell

Cooling Jet Alignment

Alignment jigs and drawings are stored on the box labeled 'Averett 3He Reference Cell Pts'. And the box is on the floor underneath the Hall C counting house printer.

Pol He3 Field Mapping Data

Pol He3 Field Map from TOSCA simulation

Circular Raster Information

Reboot Switches

Reset Target Ladder Motion Control

Pol He-3 Target Motion Reset

Cable/RTD/Signal Maps

NOTE: If you update a map below
 Click on a the previous hclog entry and either add a comment 
 pointing to your new entry, or use the 'Follow-up' link on the
 old entry to make a new entry. That will make it easier to track
 when/why things change.

Fiber RTD hardware trip points

  • Fire Safety RTDs
    • HcFiberTemp0, HcFiberTemp1
    • max measured about 32C
    • set trip to 36C
  • Fiber Temperature RTDs
    • HcFiberTemp4+ (except for 12, 14 below)
    • Max measured of about 32C
    • set trip to 46C (as of Jan 14, 2020 -- will set to 36C during next downtime)
  • HcFiberTemp12, 14
    • Max measured of 40C
    • set trip to 46C
Reset instructions for RTD HW trip points • Expert only (Brad or Ethan) [click]
Address 0xF6
 FiberTemp0-1:  (and the unused 2, 3)
   Fire safety RTDs (max 36)
Address 0xF5
 FiberTemp4--7
 * max 36
Address 0xF3
 FiberTemp8--11
 * max 36
Address 0xF4
 FiberTemp12-15
 * max 46 due to 12, 14

NOTE: power cycling the acromag controller below will trip the laser interlock!
  • Set the hardware trip limits
% ssh pi@polhe3pi2  ('hccuser' password)
% cd Documents
% scls  # select 'acromag' entry, then type Ctrl-C to kill the program
# Set the limits
% for f in 0xf3 0xf5 0xF6; do ./setupAcro -l 36 -a $f; done
% for f in 0xf4; do ./setupAcro -l 46 -a $f; done
# Reboot the acromag controller using hcreboot6
# Then restart the software by (for example) running bash again
% bash
  • Verify that the stripcharts are updating again and close the terminal window.

PolHe3 Alarm Handler defaults

These can be reset this way: 

 % ssh cvxwrks@cdaql1
 % cd alarm_handler_polhe3
 % ./set_polhe3_defaults

Type in the number for the fields you wish to reset and hit return.

Reference Cell Information

Production Target Cell Information

PolHe3 Polarization Citation/Reference Link

Final Cell polarizations and supporting documentation is (will be) on the Hall C DocDB
  https://hallcweb.jlab.org/doc-private/ShowDocument?docid=1182
Use that URL as a citation/reference in papers.

Additional Details

Nominal Cell Status summary slide
  • Any cells that are production ready need to be flagged as such
  • Any cells that have seen beam should be flagged with the date range
  • Production cell target chamber wall thickness measurement location (JLab Measurements)

Production Cell Wall Thickness.png

  • Production cell target chamber wall thickness measurement location (UVa Measurements)

UVa wall position defs.jpg

Currently Installed Cell

Cells Being Readied for Installation

Older Installed Cells

Addition Documentation

Additional Documentation

Target CAD Files/Photos

Manuals

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