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arXiv 0906.3618nucl-ex
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154 Tb中10 h异构体的精确half-life测量

Precise half-life measurement of the 10 h isomer in 154Tb

Gy. Gyürky, G. Rastrepina, Z. Elekes, J. Farkas, Zs. Fülöp, G. G. Kiss, E. Somorjai, T. Szücs

摘要:

反应产物半衰期的精确知识对于使用活化技术进行的核反应截面测量至关重要。最近用活化法测量了151 Eu(α,n)154 Tb反应的截面,但是154 Tb中10 h同分异构体的半衰期具有相对较高的不确定性,文献中可以找到模糊的数值。因此,测量了异构体状态的精确半衰期,结果为9.994 h +- 0.039 h。通过仔细分析系统误差,该半衰期值的不确定性已显著降低。

英文摘要:

The precise knowledge of the half-life of the reaction product is of crucial importance for a nuclear reaction cross section measurement carried out with the activation technique. The cross section of the 151Eu(alpha,n)154Tb reaction has been measured recently using the activation method, however, the half-life of the 10 h isomer in 154Tb has a relatively high uncertainty and ambiguous values can be found in the literature. Therefore, the precise half-life of the isomeric state has been measured and found to be 9.994 h +- 0.039 h. With careful analysis of the systematic errors, the uncertainty of this half-life value has been significantly reduced.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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