| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
We established a monitor system for neutron flux in deep underground site by using liquid scintillator, photo multipliers, and data aquisition equipments. We measured neutron flux at Kamioka Obserbatory (2700 m.w.e.) for more than 150 continuous days. Based on the measurements, we evaluated effect of neutron to background of XMASS experiment which is dark matter search experiment and has been running at the same term by using Monte Carlo simulation. As a result, improvement of sensitivity for dark matter search became possible owing to evaluation of neutron background as well as other contributions.
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