標題: Measurement of cosmic-ray muons and muon-induced neutrons in the Aberdeen Tunnel Underground Laboratory
作者: Blyth, S. C.
Chan, Y. L.
Chen, X. C.
Chu, M. C.
Cui, K. X.
Hahn, R. L.
Ho, T. H.
Hsiung, Y. B.
Hu, B. Z.
Kwan, K. K.
Kwok, M. W.
Kwok, T.
Lau, Y. P.
Leung, J. K. C.
Leung, K. Y.
Lin, G. L.
Lin, Y. C.
Luk, K. B.
Luk, W. H.
Ngai, H. Y.
Ngan, S. Y.
Pun, C. S. J.
Shih, K.
Tam, Y. H.
Tsang, R. H. M.
Wang, C. H.
Wong, C. M.
Wong, H. L. H.
Wong, K. K.
Yeh, M.
Zhang, B. J.
物理研究所
Institute of Physics
公開日期: 7-Apr-2016
摘要: We 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.
URI: http://dx.doi.org/10.1103/PhysRevD.93.072005
http://hdl.handle.net/11536/133420
ISSN: 2470-0010
DOI: 10.1103/PhysRevD.93.072005
期刊: PHYSICAL REVIEW D
Volume: 93
Issue: 7
起始頁: 0
結束頁: 0
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