Bochum 1998 – wissenschaftliches Programm

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HK: Hadronen und Kerne

HK 56: Postersitzung

HK 56.36: Poster

Mittwoch, 18. März 1998, 17:00–19:00, Foyer

Beam polarimetry at the A2-Collaboration in Mainz — •I. Preobrajenski¹ and GDH– and A2 ² — ¹Institut für Kernphysik, Universität Mainz, Becherweg 45, 55099 Mainz — ²

In order to measure and monitor the degree of circular beam polarization for experiments with real photons at MAMI a Møller and a Compton polarimeter are used in a complementary way. The Compton polarimeter is used to check and optimize the polarization at the beginning of a data taking period, the Møller polarimeter serves as a continuous online instrument during the whole experiment. Typical results obtained with a polarized electron beam from a strained GaAs crystal are presented.