The CLAS12 Ring Imaging Cherenkov detector

M. Contalbrigo,V. Kubarovsky,M. Mirazita,P. Rossi,G. Angelini,H. Avakian,K. Bailey,I. Balossino,L. Barion,F. Benmokhtar,P. Bonneau,W. Briscoe,W. Brooks,E. Cisbani,C. Cuevas,P. Degtiarenko, C. Dickover,K. Hafidi,K. Joo,A. Kim, T. Lemon, V. Lucherini,R. Malaguti,R. Montgomery,A. Movsisyan, P. Musico, T. O’Connor, D. Orecchini, L.L. Pappalardo, C. Pecar,R. Perrino, B. Raydo,S. Tomassini,M. Turisini, A. Yegneswaran

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2020）

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摘要

A ring imaging Cherenkov (RICH) detector has been installed in the CLAS12 spectrometer at Jefferson Laboratory (JLab) to provide kaon identification in the momentum range between 3 GeV/c and 8 GeV/c. The detector adopts a hybrid optics solution with aerogel radiator, light planar and spherical mirrors, and highly segmented photon detectors. We report here on the design, construction, and initial performance of the RICH during the commissioning of the detector and the first physics data taking period.

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关键词

Ring-imaging Cherenkov detectors,PID detectors,Single-photon detection

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