In mathematically statistical test methods that were used to get arming distance of fuze,Langlie method has been widely applied because it only use a few samples. Monte-Carlo method was used to simulate and calculate ...In mathematically statistical test methods that were used to get arming distance of fuze,Langlie method has been widely applied because it only use a few samples. Monte-Carlo method was used to simulate and calculate Langlie method test of fuze arming distance by using computer. The result shows that the larger error and scatter exist in the estimate of arming distance variance although 50% response level of arming distance can be estimated using a little sample; the correction coefficient of variance estimate can be got by simulating and calculating,but it is useless to a certain single test; this means that a larger error exists when Langlie method test is used to get the muzzle safety distance and the arming distance of fuze,and the maximum arming distance becomes shorter and the minimum one longer without correcting.展开更多
介绍了3种X射线空气质量衰减系数的测量方法:移动距离法、抽真空法、EGSnrc蒙特卡罗模拟计算法。给出了抽真空法中真空管内空气质量厚度改变量的计算公式,并模拟分析了真空管Be窗对实验的影响。移动距离法与抽真空法得到的结果较接近,...介绍了3种X射线空气质量衰减系数的测量方法:移动距离法、抽真空法、EGSnrc蒙特卡罗模拟计算法。给出了抽真空法中真空管内空气质量厚度改变量的计算公式,并模拟分析了真空管Be窗对实验的影响。移动距离法与抽真空法得到的结果较接近,验证了抽真空法实验的合理性。当X射线能量为6 ke V、20 ke V时,EGSnrc蒙特卡罗模拟计算结果与NIST标准数据库数值偏差分别为0. 01%、0. 26%。展开更多
文摘In mathematically statistical test methods that were used to get arming distance of fuze,Langlie method has been widely applied because it only use a few samples. Monte-Carlo method was used to simulate and calculate Langlie method test of fuze arming distance by using computer. The result shows that the larger error and scatter exist in the estimate of arming distance variance although 50% response level of arming distance can be estimated using a little sample; the correction coefficient of variance estimate can be got by simulating and calculating,but it is useless to a certain single test; this means that a larger error exists when Langlie method test is used to get the muzzle safety distance and the arming distance of fuze,and the maximum arming distance becomes shorter and the minimum one longer without correcting.
文摘介绍了3种X射线空气质量衰减系数的测量方法:移动距离法、抽真空法、EGSnrc蒙特卡罗模拟计算法。给出了抽真空法中真空管内空气质量厚度改变量的计算公式,并模拟分析了真空管Be窗对实验的影响。移动距离法与抽真空法得到的结果较接近,验证了抽真空法实验的合理性。当X射线能量为6 ke V、20 ke V时,EGSnrc蒙特卡罗模拟计算结果与NIST标准数据库数值偏差分别为0. 01%、0. 26%。
