Cosmic muon flux at shallow depths underground
Cosmic muon flux at shallow depths underground
复制标题
DOI：
10.1134/s1063778806080047
复制
发表时间：
2006-08-01
影响因子：
0.4
通讯作者：
Starostin, A. S.
中科院分区：
文献类型：
--
作者：
Bogdanova, L. N.;Gavrilov, M. G.;Starostin, A. S.
对于放置在浅层的设施，已经计算了宇宙缪子背景。提出了一个相对简单的计算海平面上的Muon谱的公式，保证了垂直Muon强度和积分Muon通量随深度变化的计算。计算表明，在10~100m的固体岩石深度范围内，介子通量密度的天顶角分布几乎不变。给出了地面和浅层测量中仪器布置的所有三种可能情况下的Muon角分布。已经证明，为了消除宇宙的缪子背景，有必要安装一把有效的宇宙射线屏蔽伞，覆盖不小于80度的天顶角θ。
The cosmic muon background has been calculated for facilities placed at shallow depths. A relatively simple formula has been proposed for the muon spectrum at sea level that ensures the calculation of the depth dependences of the vertical muon intensity and integral muon flux. Calculations show that the zenith-angle distribution of the muon flux density is almost unchanged for depths from 10 to 100 m of solid rock. The muon angular distributions are presented for all three possible cases of the arrangement of the instruments in measurements carried out on the ground and at shallow depths. It has been shown that, to eliminate the cosmic muon background, it is necessary to install an active cosmic ray shielding "umbrella" covering a zenith angle theta of no less than 80 degrees.