Difference between revisions of "Pol He-3 Target Information GEn"
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| + | [[File:Target.png|thumb|625px|right|Cell "Talisker" mounted in target enclosure]] | ||
== Experiment Information == | == Experiment Information == | ||
The GEn experiment is determining the electric form factor of the neutron to high Q<sup>2</sup> by measuring the ratio of the electric form factor of the neutron to proton via recoil polarimetry. The planned kinematic points have changed slightly from the original proposal; however, the impact of these measurements remains intact. The new kinematics are shown Figure 1 along with the expected uncertainty compared to the originally proposed kinematics. These error bars include current estimate of target and datector performance. | The GEn experiment is determining the electric form factor of the neutron to high Q<sup>2</sup> by measuring the ratio of the electric form factor of the neutron to proton via recoil polarimetry. The planned kinematic points have changed slightly from the original proposal; however, the impact of these measurements remains intact. The new kinematics are shown Figure 1 along with the expected uncertainty compared to the originally proposed kinematics. These error bars include current estimate of target and datector performance. | ||
| + | |||
| + | *[https://hallaweb.jlab.org/experiment/SBS/GEn/GEn_Website.html#generic GEn-II Proposal] | ||
| + | *[https://hallaweb.jlab.org/experiment/SBS/GEn/GEn_Website.html#generic GEn-II ERR] | ||
== Target Operator Instructions == | == Target Operator Instructions == | ||
| + | * New PolHe3 Target Training Slides [https://sbs.jlab.org/DocDB/0003/000330/008/TO_training%20slides_halla.pdf] | ||
* Old PolHe3 Target Training Slides [https://hallcweb.jlab.org/experiments/PolHe3-2019/PolHe3_Target_Training_30Jul2020.pdf] | * Old PolHe3 Target Training Slides [https://hallcweb.jlab.org/experiments/PolHe3-2019/PolHe3_Target_Training_30Jul2020.pdf] | ||
| − | |||
* PNMR Training slides | * PNMR Training slides | ||
* [[How to bring up relevant target GUIs]] | * [[How to bring up relevant target GUIs]] | ||
| Line 11: | Line 15: | ||
* Reference Cell Fill Procedure | * Reference Cell Fill Procedure | ||
* [[Helmholtz Coils Settings for Different Magnet Configurations]] | * [[Helmholtz Coils Settings for Different Magnet Configurations]] | ||
| − | |||
== Checklists == | == Checklists == | ||
| Line 29: | Line 32: | ||
== Expert Instructions == | == Expert Instructions == | ||
=== Target Cell === | === Target Cell === | ||
| + | * [https://sbs.jlab.org/cgi-bin/DocDB/private/ShowDocument?docid=277 Instructions for mounting new cell] | ||
=== Reference Cell === | === Reference Cell === | ||
| − | [https://hallaweb.jlab.org/wiki/images/e/e2/Ref._Cell._Operating_Procedures_GEN-II.pdf Operating Procedures] | + | * [https://hallaweb.jlab.org/wiki/images/e/e2/Ref._Cell._Operating_Procedures_GEN-II.pdf Operating Procedures] |
=== Cooling Jet Alignment === | === Cooling Jet Alignment === | ||
| Line 40: | Line 44: | ||
=== Circular Raster Information === | === Circular Raster Information === | ||
| − | |||
| − | |||
=== Reset Target Ladder Motion Control === | === Reset Target Ladder Motion Control === | ||
| + | [https://hallaweb.jlab.org/wiki/index.php/Iocha26_reboot_information Reboot instructions] | ||
=== Cable/RTD/Signal Maps === | === Cable/RTD/Signal Maps === | ||
| Line 60: | Line 63: | ||
documents from Gordon? | documents from Gordon? | ||
| − | |||
| − | |||
| − | |||
| − | |||
=== Cells Being Readied for Installation === | === Cells Being Readied for Installation === | ||
| Line 70: | Line 69: | ||
** Undergoing tests at UVA | ** Undergoing tests at UVA | ||
| − | *; | + | *; Tiger |
** Undergoing tests at UVA | ** Undergoing tests at UVA | ||
=== Older Installed Cells === | === Older Installed Cells === | ||
*; Ukraine | *; Ukraine | ||
| − | ** Installed in target: 10/03/2022 to 10/13/2022 | + | ** Installed in target enclosure: 10/03/2022 to 10/13/2022 |
** Used for commissioning | ** Used for commissioning | ||
| − | ** Characterization | + | ** Characterization document: [https://hallaweb.jlab.org/wiki/index.php/Pol_He-3_Target_Information_GEn/CellUkraine] |
| + | |||
| + | *; Hunter | ||
| + | ** Installed in target enclosure: 10/14/2022 to ******* | ||
| + | ** Installed in target enclosure: | ||
| + | ** Used for commissioning | ||
| + | ** Used for kinematics points | ||
| + | ** Characterization document: [https://hallaweb.jlab.org/wiki/index.php/Pol_He-3_Target_Information_GEn/CellHunter] | ||
| + | |||
| + | *; Windmill | ||
| + | ** Installed in target enclosure: | ||
| + | ** Used for kinematics points | ||
| + | ** Characterization document: [https://hallaweb.jlab.org/wiki/index.php/Pol_He-3_Target_Information_GEn/CellWindmill] | ||
| + | |||
| + | *; Fringe | ||
| + | ** Installed in target enclosure: | ||
| + | ** Used for kinematics points | ||
| + | ** Characterization document: [https://hallaweb.jlab.org/wiki/index.php/Pol_He-3_Target_Information_GEn/CellFringe] | ||
| + | |||
| + | *; Chicago | ||
| + | ** Installed in target enclosure: | ||
| + | ** Used for kinematics points | ||
| + | ** Characterization document: [https://hallaweb.jlab.org/wiki/index.php/Pol_He-3_Target_Information_GEn/CellChicago] | ||
=== Addition Documentation === | === Addition Documentation === | ||
| Line 94: | Line 115: | ||
=== Target Ladder === | === Target Ladder === | ||
| − | [https://sbs.jlab.org/DocDB/0003/000323/003/carbon_foil_GEn.pdf Information on Carbon Foils] | + | * [https://sbs.jlab.org/DocDB/0003/000323/003/carbon_foil_GEn.pdf Information on Carbon Foils] |
| + | |||
| + | === Holding Field === | ||
| + | |||
| + | * [https://sbs.jlab.org/DocDB/0002/000282/003/dflay_corr-opera-studies_GEn.pdf GEn Corrector Magnet Settings] | ||
=== Safety Documents === | === Safety Documents === | ||
| − | [https://sbs.jlab.org/DocDB/0003/000319/001/operational_safety_procedure_form_142218.pdf OSP for Magnetic Field Measurments] | + | * [https://sbs.jlab.org/DocDB/0003/000319/001/operational_safety_procedure_form_142218.pdf OSP for Magnetic Field Measurments] |
| − | [https://sbs.jlab.org/DocDB/0003/000309/001/operational_safety_procedure_form_136887.pdf OSP for Polarized He3 Target] | + | * [https://sbs.jlab.org/DocDB/0003/000309/001/operational_safety_procedure_form_136887.pdf OSP for Polarized He3 Target] |
== Manuals == | == Manuals == | ||
Latest revision as of 11:08, 31 March 2023
Contents
- 1 Experiment Information
- 2 Target Operator Instructions
- 3 Checklists
- 4 Target Polarization
- 5 Target Meetings
- 6 Expert Instructions
- 7 Reference Cell Information
- 8 Production Target Cell Information
- 9 Additional Documentation
- 10 Manuals
Experiment Information
The GEn experiment is determining the electric form factor of the neutron to high Q2 by measuring the ratio of the electric form factor of the neutron to proton via recoil polarimetry. The planned kinematic points have changed slightly from the original proposal; however, the impact of these measurements remains intact. The new kinematics are shown Figure 1 along with the expected uncertainty compared to the originally proposed kinematics. These error bars include current estimate of target and datector performance.
Target Operator Instructions
- New PolHe3 Target Training Slides [1]
- Old PolHe3 Target Training Slides [2]
- PNMR Training slides
- How to bring up relevant target GUIs
- Polarized He3 Target Operational Restrictions (raster, beam current limits, etc)
- Procedure for Moving Between Target Cells
- Reference Cell Fill Procedure
- Helmholtz Coils Settings for Different Magnet Configurations
Checklists
- Checklist before starting Target Work inside the Enclosure REVIEW THIS PAGE
- Backout Checklist after Hall Access for Target Work REVIEW THIS PAGE
- Backout Checklist after Target Work inside Enclosure REVIEW THIS PAGE
- Checklist for each shift
Target Polarization
Measurements UPDATE FOR GEn!!
Target Meetings
Expert Instructions
Target Cell
Reference Cell
Cooling Jet Alignment
Pol He3 Field Mapping Data
Pol He3 Field Map from TOSCA simulation
Circular Raster Information
Reset Target Ladder Motion Control
Cable/RTD/Signal Maps
Fiber RTD hardware trip points
PolHe3 Alarm Handler defaults
Reference Cell Information
- Documents from Todd?
Production Target Cell Information
General Specifications for Target Cells
documents from Gordon?
Cells Being Readied for Installation
- Pristine
- Undergoing tests at UVA
- Tiger
- Undergoing tests at UVA
Older Installed Cells
- Ukraine
- Installed in target enclosure: 10/03/2022 to 10/13/2022
- Used for commissioning
- Characterization document: [3]
- Hunter
- Installed in target enclosure: 10/14/2022 to *******
- Installed in target enclosure:
- Used for commissioning
- Used for kinematics points
- Characterization document: [4]
- Windmill
- Installed in target enclosure:
- Used for kinematics points
- Characterization document: [5]
- Fringe
- Installed in target enclosure:
- Used for kinematics points
- Characterization document: [6]
- Chicago
- Installed in target enclosure:
- Used for kinematics points
- Characterization document: [7]
Addition Documentation
information on study of magnetic field alignment in cells?
Additional Documentation
Target CAD Files/Photos
- Document Control Group
- Use 'Advanced Search Options': Category='hall c', Document number='67507'
- Selected Target Shop Drawings
