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Progress report on the A4 Compton backscattering polarimeter

  • Yoshio Imai
IV-2/Polarimetry
  • 24 Downloads

Abstract

The A4 collaboration at the Dept. of Nuclear Physics, University of Mainz, is conducting experiments on parity violation in the elastic electron-nucleon-scattering which require the use of polarized beams. In order to measure the absolute beam polarization, we have installed a Compton backscattering polarimeter in front of the target, using for the first time the internal cavity concept. A maximum intra-cavity intensity of 90 W has been measured, and in August 2003, first backscattered photons have been detected. This article describes the new design concept and the current status and results.

PACS: 29.27.Hj Polarized beams – 41.85.Qg Beam analyzers, beam monitors and Faraday cups – 42.60.By Design of specific laser systems – 42.60.Da Resonators, cavities, amplifiers, arrays and rings

Keywords

Elementary Particle Laser System Design Concept Progress Report Parity Violation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag, Società Italiana di Fisica 2005

Authors and Affiliations

  • Yoshio Imai
    • 1
  1. 1.Inst. für Kernphysik, Universität Mainz, J.-J.-Becher-Weg 45, D-55128 MainzGermany

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