On-site underground background measurements for the KASKA reactor-neutrino experiment
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- 作者：H. Furuta ; K. Sakuma ; M. Aoki ; Y. Fukuda ; Y. Funaki ; T. Hara ; T. Haruna ; N. Ishihara ; M. Katsumata ; T. Kawasaki ; et al.
- 关键词：Reactor neutrino ; Neutrino oscillation ; Cosmic ray ; Radioactivity ; Low background
- 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- 出版年：2006
- 出版时间：1 December 2006
- 年：2006
- 卷：568
- 期：2
- 页码：710-715
- 全文大小：243 K
文摘
On-site underground background measurements were performed for the planned reactor-neutrino oscillation experiment KASKA at Kashiwazaki-Kariwa nuclear power station in Niigata, Japan. A small-diameter boring hole was excavated down to 70 m underground level, and a detector unit for 16146279"" title=""Click to view the MathML source"">γ-ray and cosmic-muon measurements was placed at various depths to take data. The data were analyzed to obtain abundance of natural radioactive elements in the surrounding soil and rates of cosmic muons that penetrate the overburden. The results will be reflected in the design of the KASKA experiment.