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Title: Particle production of a graphite target system for the intensity frontier

A solid graphite target system is considered for an intense muon and/or neutrino source in support of physics at the intensity frontier. We previously optimized the geometric parameters of the beam and target to maximize particle production at low energies by incoming protons with kinetic energy of 6.75 GeV and an rms geometric emittance of 5 mm-mrad using the MARS15(2014) code. In this study, we ran MARS15 with ROOT-based geometry and also considered a mercury-jet target as an upgrade option. The optimization was extended to focused proton beams with transverse emittances from 5 to 50 mm-mrad, showing that the particle production decreases slowly with increasing emittance. We also studied beam-dump configurations to suppress the rate of undesirable high-energy secondary particles in the beam.
Authors:
 [1] ;  [2] ;  [3]
  1. Univ. of California, Los Angeles, CA (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Princeton Univ., Princeton, NJ (United States)
Publication Date:
OSTI Identifier:
1188268
Report Number(s):
BNL--107440-2015-CP
R&D Project: KBCH139; KB0202011; TRN: US1500262
DOE Contract Number:
SC00112704
Resource Type:
Conference
Resource Relation:
Conference: 6th International Particle Accelerator Conference (IPAC’15), Richmond, VA (United States), 3-8 May 2015
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; PROTON BEAMS; GRAPHITE; TARGETS; PARTICLE PRODUCTION; MERCURY; MUONS; NEUTRINOS; BEAM DUMPS; CONFIGURATION; JETS; OPTIMIZATION; PARTICLE SOURCES; BEAM EMITTANCE; GEV RANGE 01-10; YIELDS