核军控核查符合测量系统中去除γ射线新方法
Method of γ-peak removal in coincidence measurement system for verification of nuclear arms control
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摘要: 为消除γ射线的影响，在阐述核军控核查技术中的符合测量方法原理的基础上，分析了γ射线对于符合测量系统性能的影响机理，提出了一种新的去除γ射线峰的方法——拒绝窗口法。通过实验验证，利用该方法可以显著降低γ射线峰对符合测量系统性能的影响，且对γ射线的去除率达到了99%，大大改善了核武器识别系统的测量效果。Abstract: The paper analyzes the influence of γ-rays on coincidence measurement system performance according to the principle of coincidence measurement in verification technology of nuclear arms control, and proposes the refusing window method to remove γ-peak. Experiments show that this method can significantly reduce the γ-peak, and the removal rate of γ-rays reaches 99%. Thus the refusing window method improves the precision of coincidence measurement system.
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