【摘要】 由单个光子在地表介质和NaI探头中的反应轨迹与作用机理以及天然放射性γ能谱的分布规律,建立基于蒙特卡罗方法的随机抽样模拟模型,编制γ能谱探测模拟软件模拟在地空界面上及NaI(Tl)探测器中天然放射性γ射线响应谱线。结果显示,模拟谱线能较好拟合测量谱线。更多还原

【Abstract】 <Abstrcat> According to the impaction trace of the single photon both in the earth and in the NaI(Tl) crystal detector, and the regulation of the natural radial γ energy spectrum’ distribution, the random sample simulating model is established and the software in detecting natural radial γ energy spectrum is made by using the Monte Carlo method. The software simulates the γ energy spectrums between the sky - earth and in NaI(Tl) crystal detector respectively. The results show that the simulating spectrum can resemble the measuring spectrum precisely.更多还原