论文标题
从微钙化伽马光谱法改善了p plut和美国光子分支的比率
Improved Plutonium and Americium Photon Branching Ratios from Microcalorimeter Gamma Spectroscopy
论文作者
论文摘要
光子分支比率是诸如核材料保护和会计等活动的关键输入数据，因为它们允许从伽马射线强度的测量中提取材料组成。这些分支比率的不确定性通常是组成确定中不确定性的限制来源。在这里，我们使用高分辨率高分（在100 kev）最大的最高宽度（〜60-70ev全宽度），使用微量（微量征？凯夫。对于一个分支比率，我们显示出超过三倍的不确定性的降低，四个分支比为2 {3。
Photon branching ratios are critical input data for activities such as nuclear materials protection and accounting because they allow material compositions to be extracted from measurements of gamma-ray intensities. Uncertainties in these branching ratios are often a limiting source of uncertainty in composition determination. Here, we use high statistics, high resolution (~60-70eV full-width-at-half-maximum at 100 keV) gamma-ray spectra acquired using microcalorimeter sensors to substantially reduce the uncertainties for 11 plutonium (238Pu,239Pu,241Pu) and 241Am branching ratios important for material control and accountability and nuclear forensics in the energy range of 125 keV to 208 keV. We show a reduction in uncertainty of over a factor of three for one branching ratio and a factor of 2{3 for four branching ratios.
