A Pair Polarimeter for Linearly Polarized High Energy Photons

deJager, C.; Wojtsekhowski, B.; Tedeschi, D.; Vlahovic, B.; Abbott, D.; Asai, J.; Feldman, G.; Hotta, T.; Khadaker, M.; Kohri, H.; Matsumara, T.; Mibe, T.; Nakano, T.; Nelyubin, V.; Orielly, G.; Rudge, A.; Weilhammer, P.; Wood, M.; Yorita, T.; Zegers, R.

A Pair Polarimeter for Linearly Polarized High Energy Photons

Authors

Description

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.