A Pair Polarimeter for Linearly Polarized High Energy Photons
C. deJager, B. Wojtsekhowski, D. Tedeschi, B. Vlahovic, D. Abbott, J. Asai, G. Feldman, T. Hotta, M. Khadaker, H. Kohri, T. Matsumara, T. Mibe, T. Nakano, V. Nelyubin, G. Orielly, A. Rudge, P. Weilhammer, M. Wood, T. Yorita, R. Zegers
Abstract
A high quality beam of linearly polarized photons of several GeV will become available with the coherent bremsstrahlung technique at JLab. We have developed a polarimeter which requires about two meters of the beam line, has an analyzing power of 20% and an efficiency of 0.02%. The layout and first results of a polarimeter test on the laser back-scattering photon beam at SPring-8/LEPS are presented.
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