skip to main content

DOE PAGESDOE PAGES

Title: Measurement of the energy and time resolution of a undoped CsI + MPPC array for the Mu2e experiment

This paper describes the measurements of energy and time response and resolution of a 3 x 3 array made of undoped CsI crystals coupled to large area Hamamatsu Multi Pixel Photon Counters. The measurements have been performed using the electron beam of the Beam Test Facility in Frascati (Rome, Italy) in the energy range 80-120 MeV. The measured energy resolution, estimated with the FWHM, at 100 MeV is 16.4%. This resolution is dominated by the energy leakage due to the small dimensions of the prototype. The time is reconstructed by fitting the leading edge of the digitized signals and applying a digital constant fraction discrimination technique. A time resolution of about 110 ps at 100 MeV is achieved.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [1] ;  [2] ;  [3] ;  [2] ;  [2] ;  [4] ;  [2] ;  [5] ;  [6] ;  [3] ;  [2] ;  [2] ;  [7] ;  [8] ;  [1] ;  [1]
  1. Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
  2. National Inst. of Nuclear Physics (INFN), Frascati (Italy). National Lab. of Frascati (INFN-LNF)
  3. Istituto Nazionale di Fisica Nucleare (INFN), Pisa (Italy)
  4. Guglielmo Marconi Univ., Rome (Italy)
  5. Univ. of Siena (Italy)
  6. Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
  7. Univ. of Oxford (United Kingdom)
  8. National Inst. of Nuclear Physics (INFN), Rome (Italy)
Publication Date:
Report Number(s):
FERMILAB-TM-2648-E; arXiv:1702.03720
1513139
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1352037