Measurement of cosmic-ray muons and muon-induced neutrons in the Aberdeen Tunnel Underground Laboratory
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AbstractWe have measured the muon flux and production rate of muon-induced neutrons at a depth of 611 m water equivalent. Our apparatus comprises three layers of crossed plastic scintillator hodoscopes for tracking the incident cosmic-ray muons and 760 L of a gadolinium-doped liquid scintillator for producing and detecting neutrons. The vertical muon intensity was measured to be I-mu = (5.7 +/- 0.6) x 10(-6) cm(-2) s(-1) sr(-1). The yield of muon-induced neutrons in the liquid scintillator was determined to be Y-n = (1.19 +/- 0.08(stat) +/- 0.21(syst)) x 10(-4) neutrons/(mu.g.cm(-2)). A fit to the recently measured neutron yields at different depths gave a mean muon energy dependence of < E-mu >(0.76 +/- 0.03) for liquid-scintillator targets.
All Author(s) ListBlyth SC, Chan YL, Chen XC, Chu MC, Cui KX, Hahn RL, Ho TH, Hsiung YB, Hu BZ, Kwan KK, Kwok MW, Kwok T, Lau YP, Leung JKC, Leung KY, Lin GL, Lin YC, Luk KB, Luk WH, Ngai HY, Ngan SY, Pun CSJ, Shih K, Tam YH, Tsang RHM, Wang CH, Wong CM, Wong HLH, Wong KK, Yeh M, Zhang BJ
Journal namePhysical Review D
Year2016
Month4
Day7
Volume Number93
Issue Number7
PublisherAMER PHYSICAL SOC
Pages072005
ISSN2470-0010
eISSN2470-0029
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesAstronomy & Astrophysics; Physics; Physics, Particles & Fields

Last updated on 2020-25-11 at 00:35