Electromagnetic Transition Rate Measurements in the N =80 Isotone, 138 Ce
Electromagnetic Transition Rate Measurements in the N =80 Isotone, 138 Ce
复制标题
N =80 Isotone、138 Ce 中的电磁跃迁率测量
DOI：
10.1088/1742-6596/381/1/012057
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Alharbi T
中科院分区：
文献类型：
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作者：
Alharbi T
利用130te (12c, 4n) 138ce在56 MeV束流下的熔合蒸发反应，研究了N= 80核138ce的本征态半衰期测量。利用LaBr 3 (Ce)-HPGe混合阵列，用快时伽马射线重合法确定了2294 keV的yrast 6+态、2218 keV的I π= 5 -态、3943 keV的I π= 11+态和5312 keV的14+态的寿命，它们都处于亚纳秒状态。计算了从这些状态产生的电磁衰减的简化跃迁概率。
A study of intrinsic state halflife measurements in the N= 80 nucleus 138 Ce has been made using the 130 Te (12 C, 4n) 138 Ce fusion evaporation reaction at beam energy of 56 MeV. The fast-timing gamma-ray coincidence method was used with a mixed LaBr 3 (Ce)-HPGe array to establish the lifetimes of the yrast 6+ state at 2294 keV, the I π= 5− state at 2218 keV, the I π= 11+ state at 3943 keV and the 14+ state at that at 5312 keV, all of which are in the sub nanosecond regime. Reduced transition probabilities have been calculated for the electromagnetic decays from these states.