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Title: A measurement of the muon-induced neutron yield in lead at a depth of 2850 m water equivalent

We present results from the measurement of the neutron production rate in lead by high energy cosmic-ray muons at a depth of 2850 m water equivalent (mean muon energy of 260 GeV). A tonne-scale highly segmented plastic scintillator detector was utilised to detect both the energy depositions from the traversing muons as well as the delayed radiative capture signals of the induced neutrons. Complementary Monte Carlo simulations reproduce well the distributions of muons and detected muon-induced neutrons. Absolute agreement between simulation and data is of the order of 25%. By comparing the measured and simulated neutron capture rates a neutron yield in pure lead of (5.78{sub −0.28}{sup +0.21})×10{sup −3} neutrons/muon/(g/cm{sup 2}) has been obtained.
Authors:
;  [1] ; ; ; ; ; ; ; ;  [2] ; ; ; ; ; ;  [3] ; ; ; ;  [4] more »; « less
  1. School of Physics and Astronomy, SUPA University of Edinburgh, UK and High Energy Physics Group, Department of Physics and Astronomy, University College London (United Kingdom)
  2. LIP-Coimbra and Department of Physics of the University of Coimbra (Portugal)
  3. Institute for Theoretical and Experimental Physics, Moscow (Russian Federation)
  4. High Energy Physics Group, Blackett Laboratory, Imperial College London (United Kingdom)
Publication Date:
OSTI Identifier:
22218185
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1549; Journal Issue: 1; Conference: LRT 2013: 4. international workshop on low radioactivity techniques, Assergi (Italy), 10-12 Apr 2013; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CAPTURE; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; COSMIC MUONS; ENERGY ABSORPTION; ENERGY LOSSES; GEV RANGE; LEAD; LEAD 206 TARGET; LEAD 208 TARGET; MONTE CARLO METHOD; MUON REACTIONS; NEUTRON DETECTION; NEUTRON REACTIONS; NEUTRONS; NUCLEAR REACTION YIELD; PLASTIC SCINTILLATION DETECTORS; WATER