Trap-assisted separation of nuclear states for gamma-ray spectroscopy: the example of 100 Nb
Trap-assisted separation of nuclear states for gamma-ray spectroscopy: the example of 100 Nb
复制标题
伽马射线光谱的陷阱辅助核态分离：以 100 Nb 为例
DOI：
10.1088/0954-3899/39/1/015101
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Triguero C
中科院分区：
文献类型：
--
作者：
Triguero C
已知100mo中的低洼水平被100nb中的基态和同分异构体态的β衰变所填充。两种母态之间很小的能量差（~ 3ppm）和半衰期的相似性使得在实验上很难区分这两种衰变路径。最近在IGISOL设施的一系列实验中开发了一种分离不同原子核状态的新技术，使用了Jyväskylä大学的JYFLTRAP装置，在质量测量和133m Xe的生产中实现了质量分辨率~ 2 ppm。本文报告了该技术的扩展，以允许对由不同母态填充的能级的伽马射线衰变进行单独研究。
Low-lying levels in 100 Mo are known to be populated by beta decay from both the ground and isomeric states in 100 Nb. The small energy difference (∼ 3 ppm) between the two parent states and the similarity of their half-lives make it difficult to distinguish experimentally between the two decay paths. A new technique for separating different states of nuclei has recently been developed in a series of experiments at the IGISOL facility, using the JYFLTRAP installation, at the University of Jyväskylä where mass resolution∼ 2 ppm was achieved in mass measurements and in the production of 133m Xe. This paper reports on the extension of this technique to allow the separate study of the gamma-ray decay of levels populated by the different parent states.