1. An apparatus for studying spallation neutrons in the Aberdeen Tunnel laboratory.
- Author
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Blyth, S.C., Chan, Y.L., Chen, X.C., Chu, M.C., Hahn, R.L., Ho, T.H., Hsiung, Y.B., Hu, B.Z., Kwan, K.K., Kwok, M.W., Kwok, T., Lau, Y.P., Lee, K.P., Leung, J.K.C., Leung, K.Y., Lin, G.L., Lin, Y.C., Luk, K.B., Luk, W.H., and Ngai, H.Y.
- Subjects
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NUCLEAR counter design & construction , *NUCLEAR physics instruments , *COSMIC rays , *MUONS , *SANDWICH construction (Materials) - Abstract
Abstract: In this paper, we describe the design, construction and performance of an apparatus installed in the Aberdeen Tunnel laboratory in Hong Kong for studying spallation neutrons induced by cosmic-ray muons under a vertical rock overburden of 611m water equivalent (m.w.e.). The apparatus comprises six horizontal layers of plastic-scintillator hodoscopes for determining the direction and position of the incident cosmic-ray muons. Sandwiched between the hodoscope planes is a neutron detector filled with 650kg of liquid scintillator doped with about 0.06% of Gadolinium by weight for improving the efficiency of detecting the spallation neutrons. Performance of the apparatus is also presented. [Copyright &y& Elsevier]
- Published
- 2013
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