Difference between revisions of "Compton Transmission Polarimeter"

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References
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This R&D project is a collaboration between Brookheaven National Lab and Jefferson Lab to develop a Compton Transmission Polarimeter to be used with BNL Polarized SRF Gun.
  
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[https://www.jlab.org/polarimetry/talks/zwartl_bates.pdf Townsend Zwart, Electron Polarimetry at MIT Bates]
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== COMTRA Summary Files ==
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* 5/4/22 - Compton Transmission Polarimeter Magnet - Summary of progress [[media:Compton Transmission Polarimeter Magnet - Summary of progress SG 052422.pptx]]
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* 9/15/22 - Draft of "COMTRA Solenoid Power-Up and Power-Down Procedure" [[media:PMAG0000-0001-P0001 COMTRA Solenoid Power-Up and Power-Down Procedure_v1_SG.docx]]
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* 9/25/22 - Compton Transmission Polarimeter Magnet - Images [[media:Images for JG 092522.pptx]]
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* 10/13/22 - Maxwell output B vs. I [[media:COMPTON Field comparison_MAXWELL SG 101322.xlsx]]
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== [[ Compton Transmission Polarimeter Meetings]] ==
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* [[Meeting 9/29/22 - COMTRA]] - HCO - '''last meeting'''
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* [[Meeting 9/22/22 - COMTRA]] - Final week of HCO is upon us...
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* [[Meeting 9/15/22 - COMTRA]] - Readiness updates...
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* [[Meeting 9/8/22 - COMTRA]] - Readiness updates...
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* [[Meeting 9/1/22 - COMTRA]] - Installation continues...
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* [[Meeting 8/25/22 - COMTRA]] - Installation has begun...
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* [[Meeting 8/18/22 - COMTRA]] -
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* [[Meeting 8/11/22 - COMTRA]] -
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* [[Meeting 8/4/22 - COMTRA]] -
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* [[Meeting 7/28/22 - COMTRA]] -
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* [[Meeting 7/21/22 - COMTRA]] -
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* [[Meeting 7/14/22 - COMTRA]] -
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* [[Meeting 7/7/22 - COMTRA]] -
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* [[Meeting 6/29/22 - COMTRA]] - Shipping and procurement status...
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* 6/29/22 - Riad's PI status report to monthly BNL/JLAB meeting [[media:CompPol_BNL_SRF_Gun_29June2022.pptx]]
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* [[Meeting 6/23/22 - COMTRA]] - Been a long time, now taking minutes again...
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*6/02/22 - Chris's recent update [[media:InjectorDAQ_PurchaseNeeds_2022June2.xlsx]] [https://jeffersonlab-my.sharepoint.com/personal/cuevas_jlab_org/Documents/UITF/MottDAQ/InjectorDAQ_PurchaseNeeds_2022Jan.xlsx Sharepoint file] '''use this one but first please update with the one on the wiki below'''
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* [[Meeting 3/31/22 - COMTRA]] - Status and UITF schedule
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* 3/16/22 - First rack assembled [[media:220316_Rack#1.jpg]]
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* 3/16/22 - Compton Magnet Function and Requirements Document [[media:PMAG0000-0011-S0001 Compton Magnet Func and Req Specs.pdf]]
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* 3/11/22 - Probir's proposed workplan and schedule [[media:iron core solenoid Magnet Task list.xlsx]]
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* 3/10/22 - Discussion with Cliff @ BNL [[media:220310_Cliff_CeC.jpeg]] [[media:0021m0005_asm.stp.txt]] (change .txt to .stp)
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* 3/3/22 - Status of Gary's "first installation" at UITF, for review [[media:3-3-22 Compton Polarimeter Layout.pptx]]
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* JLab Compton Transmission Polarimeter - BNL Meeting, March 2, 2022: [[media:CompPol_BNL_SRF_Gun_02March2022.pdf]] [[media:CompPol_BNL_SRF_Gun_02March2022.pptx]]
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* [[Meeting 2/10/22 - COMTRA]] - CEBAF Compton removed, discussion of DAQ integration
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* [[Meeting 2/3/22 - COMTRA]]
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* [[Meeting 1/27/22 - COMTRA]] - Updates on schedule, layout, radiator, DAQ, polarized target and simulation
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* Meeting 1/20/22: organizational meeting for 2022 [[media:220120_COMTRA.pptx]]
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* Meeting 7/16/21: [[media:Benjamin-71621.pdf]]
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== Project Documents ==
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* (1/27/22) Added [https://wiki.jlab.org/ciswiki/index.php/Beamline,_Radiator_and_Dump link] describing the copper radiator built/installed at CEBAF for Bubble experiment, that we'd like to re-use at UITF
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* Proposal: [[media:Proposal_Superconducting_RF_electron_gun.pdf]]
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* Design of a Compton transmission polarimeter, Fernandes Neres Benjamin: [[media:CompPol_Optimization_B.Fernandes-Neres.pdf]]
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* NP Accelerator R&D PI Exchange meeting on November 30, 2021, "Development  of Beam Polarimeter for BNL SRF Gun":  [[media:Accelerator_PI_Meeting_Nov2021_Electron_CompPol_BNL_SRF_Gun.pdf]] [[media:Accelerator_PI_Meeting_Nov2021_Electron_CompPol_BNL_SRF_Gun.pptx]]
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* Quarterly Reports
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** FY 21:
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*** Q1: [[media:NP Qtrly Report - Superconducting RF Electron Gun - Q1 2021 - Appendix A JLab Report.docx]]
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*** Q2: [[media:NP Qtrly Report - Superconducting RF Electron Gun - Q2 2021 - Appendix A JLab Report.docx]]
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*** Q3: [[media:NP Qtrly Report - Superconducting RF Electron Gun - Q3 2021 - Appendix A JLab Report.docx]]
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*** Q4: [[media:NP Qtrly Report - Superconducting RF Electron Gun - Q4 2021.docx]]
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** FY 22:
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***Q1: [[media:NP Qtrly Report - Superconducting RF Electron Gun - Q1 2022.docx]]
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***Q2: [[media:NP Qtrly Report - Superconducting RF Electron Gun - Q2 2022.docx]]
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***Q3: [[media:NP Qtrly Report - SRF Gun - Compton Transmission Polarimeter - Q3 2022.docx]]
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***Q4: [[media:NP Qtrly Report - SRF Gun - Compton Transmission Polarimeter - Q4 2022.docx]]
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** FY 23:
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***Q1: [[media:NP Qtrly Report - SRF Gun - Compton Transmission Polarimeter - Q1 2023.docx]]
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***Q2: [[media:NP Qtrly Report - SRF Gun - Compton Transmission Polarimeter - Q2 2023.docx]]
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== References ==
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* R Barday et al 2011 J. Phys.: Conf. Ser. 298 012022, Compton transmission polarimeter for a very precise polarization measurement within a wide range of electron currents [[media:Barday_2011.pdf]]
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* H. Hoogduin, Electron, Positron and Photon Polarimetry, PhD Thesis 1997 [[media:Hoogduin1997.pdf]]  (see chapter 2 and section on Geant)
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* A. Adeyemi and E. Voutier, The Calibration of the PEPPo polarimeter for electrons and positrons, IPAC 2013 [[media:Adeyemi-IPAC2013-Proc.pdf]]
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* E. Fanchini, The PEPPo e- & e+ polarization measurements, POSIPOL 2012 [[media:Fanchini_Posipol.pdf]]
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* Townsend Zwart, Electron Polarimetry at MIT Bates (2000): [https://www.jlab.org/polarimetry/talks/zwartl_bates.pdf]
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== BNL SRF Gun Beamline and Low Power Beam Dump ==
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*From: Jean Clifford Brutus. In Dropbox [https://www.dropbox.com/sh/zyi6unr8rpldba0/AABodYCLcgZTOIs-S2y-Dmb0a?dl=0]:
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    Step file of the diagnostics beamline only (0021m0004) including a dwg drawing.
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    Step file of the entire CeC beamline (0021m0003) including a dwg drawing.
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    Pictures of the area.
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== COMTRA Readiness==
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* ANALYSIS
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** Completion of draft 1 data analysis [[media:Blume_COMTRA_2_22_23.pdf]]
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* INSTALLATION
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** Installation UITFlist => https://tasklists.jlab.org/uitflist/tasks/107371
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** DC power magnet specific UITFlist => https://tasklists.jlab.org/uitflist/tasks/107370
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** Recent installation photos with UED names [[media:220914_COMTRA.pptx]]
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** UED List Version 4 [[media:comptra_beamline_v4.xlsx]]
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** UITF logbook => https://logbooks.jlab.org/book/uitflog
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* RUN TIME
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** Run Plan UITFlist => https://tasklists.jlab.org/uitflist/tasks/107600
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** Run Plan Version 5 [[media:COMTRA-RunPlan-v5.xlsx]]
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** Steps to align x-ray beam [[media:220920_Table_Steps_v2.pptx]]
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** [[UITF  Compton Transmission Polarimeter Data Acquisition System]]
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** Quick Reference v.16 [[media:UITF_quick_reference_rev.16.pdf]]
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** [[Comtra_BeamSetup]]

Latest revision as of 13:24, 24 April 2023

This R&D project is a collaboration between Brookheaven National Lab and Jefferson Lab to develop a Compton Transmission Polarimeter to be used with BNL Polarized SRF Gun.

COMTRA Summary Files

Compton Transmission Polarimeter Meetings

Project Documents

References

  • R Barday et al 2011 J. Phys.: Conf. Ser. 298 012022, Compton transmission polarimeter for a very precise polarization measurement within a wide range of electron currents media:Barday_2011.pdf
  • H. Hoogduin, Electron, Positron and Photon Polarimetry, PhD Thesis 1997 media:Hoogduin1997.pdf (see chapter 2 and section on Geant)
  • A. Adeyemi and E. Voutier, The Calibration of the PEPPo polarimeter for electrons and positrons, IPAC 2013 media:Adeyemi-IPAC2013-Proc.pdf
  • E. Fanchini, The PEPPo e- & e+ polarization measurements, POSIPOL 2012 media:Fanchini_Posipol.pdf
  • Townsend Zwart, Electron Polarimetry at MIT Bates (2000): [1]

BNL SRF Gun Beamline and Low Power Beam Dump

  • From: Jean Clifford Brutus. In Dropbox [2]:
   Step file of the diagnostics beamline only (0021m0004) including a dwg drawing.
   Step file of the entire CeC beamline (0021m0003) including a dwg drawing.
   Pictures of the area.

COMTRA Readiness

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