This Møller Polarimeter is used in Hall A of Jefferson Lab (former CEBAF) in order to measure the polarization of the electron beam. It consists of a polarized target, a magnetic channel consisting of 4 quadrupoles and one dipole and of a detector consists of a sandwich-type electromagnetic calorimeter and an aperture detector made of plastic scintillator.

This page resides in JLAB and is regularly updated. A good page on this polarimeter with a lot of details on the design is residing in University of Kentucky

External Links (New Page)

• Hall A Møller Polarimetry ELOG
• Wiki for the Hall A Møller polarimeter

General Documentation

• Hall A Møller Polarimeter OSP 2015: OSP , Manual(2019)
• 12 GeV Møller polarimeter drawings pdf1 , pdf2 , pdf3 , GEANT
• List of changes related to the Møller polarimeter


• Møller Polarimeter Electronics
• Study of dead-time of the Møller DAQs
• FADC firmware upgrading (considering to add more functionality for FADC like Programming Logic Unit)
• Schematics List for new Target(4T) Control
• Electronics
• Upgrade Project Phase I 2007
  
• Upgrade Project  Phase II 2007
• LED Generator
• List of programs using for Møller DAQ
• Remote connections to the the VME boards, HV etc
• Control of the collimator and the slide


• New Aperture Scintillators for Detector
• Start/stop procedure
• Møller Detector design ps.gz and pdf .
• FADC DAQ
• Useful Tech notes (Jack Segal)

Magnet Documentation

• Beam line: new quads downstream of Møller
• Møller Polarimeter Spectrometer Magnets

Target Documentation

• Photos

• Target documentation
• Target drawings
• Target Linear Motion Feedthrough L-2220-T
• Target Rotary Motion Feedthrough VF-106
• Møller polarimeter screens (2016)
• Møller target holder 2016: list of foils
• Superconducting Magnet AMI-14432

• Møller polarimeter screens
• Møller magnet upgrade (Jack's notes)
• Møller SC magnet LHe fill precedure
• Results of Møller magnet alignment test
• New target motion control procedure
• Target motion linear encoder test
• Møller Target magnet rumping rates

Polarization Data & Data Analysis Information

• [NEW LINK] Beam polarization measurement summaries.
• The sign of beam polarization
• [MOVED TO DATA PAGE] The Møller polarimeter summaries for the Hall A experiments
• Helicity signals
• Spin dance measurements
• Results of commissioning and studies of the systematics
• Results of tests with the unpolarized beam, March 98.
• The signs of polarizations of the target and of the beam.
• Laser's phase influence on the beam polarization.
• HWP influence of HWP on the beam polarization.
• Data analysis: manual
• Data analysis: details
• How to start Møller DAQ with CODA 2.2 on Linux computer 
• Møller Polarimeter Slow Control
• [Outdated added link to G4 MolPol on Github] Simulation with GEANT
• Hall A Moller Polarimeter Geant4 Simulation

Projects and development

• Proposal to upgrade the polarimeter to 11 GeV beam (2000) ps.gz, pdf
• Feasibility studies: using atomic hydrogen target

Literature (New Literature Page)

• [MOVED TO TALKS/PAPERS PAGE] "Results Unique electron polarimeter analyzing power comparison and precision spin-based energy measurement"
  Phys. Rev. Special topics - accelerator and beams,Vol.7,042802(2004) (pdf file)
• Literature on polarimetry - Møller and some other
• Helicity Control Board User's Guide (March 09, 2010 pdf)

Talks/Presentations/Papers/Theses (New Page)

• [MOVED TO NEW TALKS/PAPERS PAGE] Møller Related Talks and Presentations

Links to Other Polarimeters

• Hall C Møller polarimeter
• Hall A Compton polarimeter