发表机构
University of California Berkeley（加州大学伯克利分校）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
重新分析三硝石样品中137Cs与239Pu比值，基于当前核数据得出三位一体装置平均当量9.1±4.5千吨，与公认总当量21千吨有差距，但符合钚核心裂变贡献。
AI 中文摘要
先前已发表的用于测定三位一体核爆炸当量的三硝石分析，使用了裂变产物掺入三硝石比例的各种估计。此外，这些研究采用了后来被修订的核数据。利用平面锗探测器，我们从四份三硝石样品中观测到了137Cs和239Pu衰变产生的伽马射线。根据观测到的137Cs/239Pu比值，并采用基于当前核数据和武器碎片研究的简单分析方法，我们发现四个样品的平均当量为9.1±4.5千吨。虽然这一结果显著低于公认的21千吨总当量，但它与仅由239Pu核心裂变所贡献的当量相当吻合。
英文摘要
Previous published analyses of trinitite to determine the yield of the Trinity nuclear explosion used various estimates of the fraction of fission products that became incorporated in trinitite. Furthermore, these studies utilized nuclear data that has subsequently been revised. Utilizing a planar germanium detector, we observed gamma rays produced by the decays of both 137Cs and 239Pu from four samples of trinitite. From the observed 137Cs/239Pu ratios of and a simple analysis method based on current nuclear data and weapons debris studies, we find an average yield of 9.1+-4.5 kilotons from our four samples. While this result is substantially lower than the established total yield of 21 kilotons, it is in reasonable agreement that attributable to fissions in the 239Pu core alone.
Journal refApplied Radiation and Isotopes 238 (2026) 112883
