https://doi.org/10.1140/epja/i2006-10443-7
PAVI 2006
Laser Compton polarimetry at JLab and MAMI
A status report
1
Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, Joh.-Joachim-Becherweg 45, D-55128, Mainz, Germany
2
Laboratory for Nuclear Science, Massachussetts Institute of Technology, 02139, Cambridge, MA, USA
* e-mail: defi@kph.uni-mainz.de
Received:
31
August
2006
Accepted:
18
March
2007
Published online:
18
July
2007
For modern parity violation experiments it is crucial to measure and monitor the electron beam polarization continuously. In the recent years different high-luminosity concepts, for precision Compton backscattering polarimetry, have been developed, to be used at modern CW electron beam accelerator facilities. As Compton backscattering polarimetry is free of intrinsic systematic uncertainties, it can be a superior alternative to other polarimetry techniques such as Møller and Mott scattering. State-of-the-art high-luminosity Compton backscattering designs currently in use and under development at JLab and Mainz are compared to each other. The latest results from the Mainz A4 Compton polarimeter are presented.
PACS: 29.27.Hj Polarized beams – / 41.85.Qg Beam analyzers, beam monitors, and Faraday cups –
© Società Italiana di Fisica and Springer-Verlag, 2007
