A photon calorimeter using lead tungstate crystals for the CEBAF Hall A Compton polarimeter

D. Neyret,T. Pussieux,T. Auger,M. Baylac,E. Burtin,C. Cavata,R. Chipaux,S. Escoffier,N. Falletto,J. Jardillier,S. Kerhoas,D. Lhuillier,F. Marie,C. Veyssière,J. Ahrens,R. Beck, M. Lang

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2000）

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摘要

A new Compton polarimeter is built on the CEBAF Hall A electron beam line. Performances of 10% resolution and 1% calibration are required for the photon calorimeter of this polarimeter. This calorimeter is built with lead tungstate scintillators coming from the CMS electromagnetic calorimeter R&D. Beam tests of this detector have been made using the tagged photon beam line at MAMI, Mainz, and a resolution of 1.76%⊕2.75%/E⊕0.41%/E has been measured.

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29.40.Vj,29.40.Mc

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