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This content will become publicly available on January 16, 2018

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

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:
OSTI Identifier:
1154723
Report Number(s):
JLAB-PHY--14-1917; DOE/OR/23177--3172
Journal ID: ISSN 0168-9002
Grant/Contract Number:
AC05-06OR23177
Type:
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
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY