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中文摘要：
以137Cs放出能量为0．662MeV的7光子在NaI（T1）晶体中的响应函数为研究对象，探讨响应函数的计算方法。对能量沉积谱分段，计算出落在每一能量段内的概率，依此将实验测得的参数代入程序中对谱线进行拓展形成符合高斯分布的全能峰。用蒙特卡罗方法建立物理模型，利用设计的模拟软件模拟出整个光子的运动过程，同时显示出晶体探测到的γ光子响应函数。
英文摘要：
The gamma photon taking that 137Cs emit an energy as 0. 661 MeV is an object of study in response function in NaI （Tl） crystal then, probe into the calculating method of response function. Piecewise to the energy deposition spectrum, calculated in the fall on each of the probability of energy. So will the Experimental measurement parameters into the process of formation of the spectrum to expand in line with the all energy peak-Gaussian distribution. Design simulation software used to simulate the movement as a whole photon process. Based on the physical model by Monte Carlo method and displayed the crystal to detect the photon γ response function.
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