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Title: The large-area hybrid-optics RICH detector for the CLAS12 spectrometer

Abstract

A large area ring-imaging Cherenkov detector has been designed to provide clean hadron identification capability in the momentum range from 3 GeV/c to 8 GeV/c for the CLAS12 experiments at the upgraded 12 GeV continuous electron beam accelerator facility of Jefferson Lab to study the 3D nucleon structure in the yet poorly explored valence region by deep-inelastic scattering, and to perform precision measurements in hadronization and hadron spectroscopy. The adopted solution foresees a novel hybrid optics design based on an aerogel radiator, composite mirrors and densely packed and highly segmented photon detectors. Cherenkov light will either be imaged directly (forward tracks) or after two mirror reflections (large angle tracks). Finally, the preliminary results of individual detector component tests and of the prototype performance at test-beams are reported here.

Authors:
 [1];  [1];  [2];  [2];  [3];  [4];  [5];  [6];  [2];  [7];  [3];  [8];  [7];  [1];  [2];  [9];  [2];  [10];  [3];  [1] more »;  [2];  [11];  [1];  [7];  [12];  [2];  [1];  [2] « less
  1. INFN Lab. Nazionali di Frascati (Italy)
  2. INFN Sezione di Ferrara (Italy)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Duquesne Univ., Pittsburgh, PA (United States)
  5. Univ. Tecnica Federico Santa Maria (Chile)
  6. INFN Sezione di Roma (Italy)
  7. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  8. Univ. of Connecticut, Storrs, CT (United States)
  9. Glasgow Univ. (United Kingdom)
  10. INFN Sezione di Genova (Italy)
  11. INFN Sezione de Bari (Italy)
  12. INFN Lab. Nazionali di Frascati (Italy); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1154723
Report Number(s):
JLAB-PHY-14-1917; DOE/OR/23177-3172
Journal ID: ISSN 0168-9002
Grant/Contract Number:
AC05-06OR23177
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 766; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Mirazita, M., Angelini, G., Balossino, I., Barion, L., Bailey, K., Benmokhtar, F., Brooks, W., Cisbani, E., Contalbrigo, M., Cuevas, C., Hafidi, K., Kim, A., Kubarovsky, V., Lucherini, V., Malaguti, R., Montgomery, R., Movsisyan, A., Musico, P., O'Connor, T., Orecchini, D., Pappalardo, L., Perrino, R., Pisano, S., Raydo, B., Rossi, P., Squerzanti, S., Tomassini, S., and Turisini, M. The large-area hybrid-optics RICH detector for the CLAS12 spectrometer. United States: N. p., 2017. Web. doi:10.1016/j.nima.2017.01.020.
Mirazita, M., Angelini, G., Balossino, I., Barion, L., Bailey, K., Benmokhtar, F., Brooks, W., Cisbani, E., Contalbrigo, M., Cuevas, C., Hafidi, K., Kim, A., Kubarovsky, V., Lucherini, V., Malaguti, R., Montgomery, R., Movsisyan, A., Musico, P., O'Connor, T., Orecchini, D., Pappalardo, L., Perrino, R., Pisano, S., Raydo, B., Rossi, P., Squerzanti, S., Tomassini, S., & Turisini, M. The large-area hybrid-optics RICH detector for the CLAS12 spectrometer. United States. doi:10.1016/j.nima.2017.01.020.
Mirazita, M., Angelini, G., Balossino, I., Barion, L., Bailey, K., Benmokhtar, F., Brooks, W., Cisbani, E., Contalbrigo, M., Cuevas, C., Hafidi, K., Kim, A., Kubarovsky, V., Lucherini, V., Malaguti, R., Montgomery, R., Movsisyan, A., Musico, P., O'Connor, T., Orecchini, D., Pappalardo, L., Perrino, R., Pisano, S., Raydo, B., Rossi, P., Squerzanti, S., Tomassini, S., and Turisini, M. Mon . "The large-area hybrid-optics RICH detector for the CLAS12 spectrometer". United States. doi:10.1016/j.nima.2017.01.020. https://www.osti.gov/servlets/purl/1154723.
@article{osti_1154723,
title = {The large-area hybrid-optics RICH detector for the CLAS12 spectrometer},
author = {Mirazita, M. and Angelini, G. and Balossino, I. and Barion, L. and Bailey, K. and Benmokhtar, F. and Brooks, W. and Cisbani, E. and Contalbrigo, M. and Cuevas, C. and Hafidi, K. and Kim, A. and Kubarovsky, V. and Lucherini, V. and Malaguti, R. and Montgomery, R. and Movsisyan, A. and Musico, P. and O'Connor, T. and Orecchini, D. and Pappalardo, L. and Perrino, R. and Pisano, S. and Raydo, B. and Rossi, P. and Squerzanti, S. and Tomassini, S. and Turisini, M.},
abstractNote = {A large area ring-imaging Cherenkov detector has been designed to provide clean hadron identification capability in the momentum range from 3 GeV/c to 8 GeV/c for the CLAS12 experiments at the upgraded 12 GeV continuous electron beam accelerator facility of Jefferson Lab to study the 3D nucleon structure in the yet poorly explored valence region by deep-inelastic scattering, and to perform precision measurements in hadronization and hadron spectroscopy. The adopted solution foresees a novel hybrid optics design based on an aerogel radiator, composite mirrors and densely packed and highly segmented photon detectors. Cherenkov light will either be imaged directly (forward tracks) or after two mirror reflections (large angle tracks). Finally, the preliminary results of individual detector component tests and of the prototype performance at test-beams are reported here.},
doi = {10.1016/j.nima.2017.01.020},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 766,
place = {United States},
year = {Mon Jan 16 00:00:00 EST 2017},
month = {Mon Jan 16 00:00:00 EST 2017}
}

Journal Article:
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  • A large area RICH detector is being designed for the CLAS12 spectrometer as part of the 12 GeV upgrade program of the Jefferson Lab Experimental Hall-B. This detector is intended to provide excellent hadron identification from 3 GeV/c up to momenta exceeding 8 GeV/c and to be able to work at the very high design luminosity-up to 1035 cm2 s-1. Detailed feasibility studies are presented for two types of radiators, aerogel and liquid C6F14 freon, in conjunction with a highly segmented light detector in the visible wavelength range. The basic parameters of the RICH are outlined and the resulting performances,more » as defined by preliminary simulation studies, are reported.« less
  • A large area ring-imaging Cherenkov detector has been designed to provide clean hadron identification capability in the momentum range from 3 GeV/c up to 8 GeV/c for the CLAS12 experiments at the upgraded 12 GeV continuous electron beam accelerator facility of Jefferson Laboratory. The adopted solution foresees a novel hybrid optics design based on aerogel radiator, composite mirrors and high-packed and high-segmented photon detectors. Cherenkov light will either be imaged directly (forward tracks) or after two mirror reflections (large angle tracks). We report here the results of the tests of a large scale prototype of the RICH detector performed withmore » the hadron beam of the CERN T9 experimental hall for the direct detection configuration. The tests demonstrated that the proposed design provides the required pion-to-kaon rejection factor of 1:500 in the whole momentum range.« less
  • A large-area ring-imaging Cherenkov detector has been designed to provide clean hadron identi- fication capability in the momentum range from 3 GeV/c up to 8 GeV/c for the CLAS12 experiment at the upgraded 12 GeV continuous electron beam accelerator facility of Jefferson Laboratory. The adopted solution foresees a novel hybrid optics design based on aerogel radiator, composite mirrors and highly packed and highly segmented photon detectors. Cherenkov light will either be imaged directly (forward tracks) or after two mirror reflections (large-angle tracks). We report here the results of the tests of a large-scale prototype of the RICH detector performed withmore » the hadron beam of the CERN T9 experimental hall for the direct detection configuration. The tests demonstrated that the proposed design provides the required pion-to-kaon rejection factor of 1 : 500 in the whole momentum range.« less
  • A large area ring-imaging Cherenkov detector has been designed to provide clean hadron identification capability in the momentum range from 3 GeV/c up to 8 GeV/c for the CLAS12 experiments at the upgraded 12 GeV continuous electron beam accelerator facility of Jefferson Laboratory. The adopted solution foresees a novel hybrid optics design based on aerogel radiator, composite mirrors and high-packed and high-segmented photon detectors. Cherenkov light will either be imaged directly (forward tracks) or after two mirror reflections (large angle tracks). We report here the results of the tests of a large scale prototype of the RICH detector performed withmore » the hadron beam of the CERN T9 experimental hall for the direct detection configuration. As a result, the tests demonstrated that the proposed design provides the required pion-to-kaon rejection factor of 1:500 in the whole momentum range.« less