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Compton integrating method Beam test summary PREX/Happex Collaboration Meeting Alexandre Camsonne
Compton polarimeter Photon detector to test the integrating method Use a flash ADC to integrate the signal Change of PMT base Data taking during E03-104
Compton signal Standard DAQ
Experimental setup PMT Fan in/out Amplifier Upstairs counting house Experimental hall FADC Amplifier
Measurement principle Compton asymmetry ?
What we learnt Choice of the crystal ( pulse length) High gain PMT would help Beam tuning critical Asymmetry is seen
To do Analysis of the data Effect of background Linearity Polarization Tests Electronics Threshold effects
POLARIMETRY of MeV Photons and Positrons Overview Beam Characterization – undulator photons – positrons Basics of the Transmission Method – for photon.
Antonin Vacheret DAPNIA/SPhN, CEA Saclay.HAPPEX II Jlab Hall A Electron detectors for HAPPEX2 and He Installation in HRS Linearity tests 4.
Bob MichaelsParity Collab. Mtg. May 17, `07 Integrating Compton DAQ and Analysis Bob Michaels with Reminder about Nov 2006 Results Specification of new.
E status report Alexandre Camsonne Hall A Jefferson Laboratory Hall A collaboration meeting December 13 th 2007.
Hall A Collaboration meeting January 5 th 2007 A. Camsonne Compton Polarimeter Status Report Alexandre Camsonne Hall A Collaboration Meeting January 4.
May 17th 2007 Happex Collaboration Meeting 1 Compton polarimeter Electron detector upgrade and status PREX/Happex Collaboration Meeting May 17 th 2007.
Compton Photon Calorimeter Gregg Franklin, B. Quinn Carnegie Mellon Design Considerations Light Yield and Photoelectrons Detector Geometry, EGS Simulations,
Robert J. Feuerbach Jefferson Lab Constructed from contributions from the HAPPEX Collaboration Hall A Collaboration Meeting December 5, 2005 HAPPEX-II.
Progress on the Compton Analysis R. S. Holmes, A. Rakhman.
The group is developing readout electronics for initial use with the prototype test-stand at Fermilab. This work will contribute towards the design and.
Lumi Analysis for HAPPEx III / PREX Presented by: Luis Mercado UMass - Amherst 5/18/2007.
Collimation and tagging instrumentation for the GlueX photon beamline Richard Jones Igor Senderovich, Anne-Marie Carroll University of Connecticut APS/DNP.
Muon g-2 and SLAC Detector Test T-519 Momentu m Spin e David Hertzog University of Washington.
R. Michaels PVDIS at Nov 2009 Beam Requirements for PVDIS Property ValueRun-Avg Hel. Correl. 1-Day Hel. Correl. Energy 6 and 4.8 GeVdE/E < 1 ppm < 5 ppm.
1 Electron Beam Polarimetry for EIC/eRHIC W. Lorenzon (Michigan) Introduction Polarimetry at HERA Lessons learned from HERA Polarimetry at EIC.
Noise Analysis for PREx - Pb Radius Experiment Presented by: Luis Mercado UMass - Amherst 6/20/2008.
Tagger Electronics Part 1: tagger focal plane microscope Part 2: tagger fixed array Part 3: trigger and digitization Richard Jones, University of Connecticut.
E166 “Polarized Positrons for Future Linear Colliders” John C. Sheppard E166 Co-spokesman SLAC: August 31, 2004.
K.T. McDonald DoE Review July 29, E-166 Experiment E-166 is a demonstration of undulator-based polarized positron production for linear colliders.
Accelerator hall of the S- DALINAC – electron energies from 2 to 130 MeV available – cw and pulsed beam operation possible – source for polarized electron.
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