Study of Photon Strength Function of Actinides : the Case of U-235, Np-238 and Pu-241
Study of Photon Strength Function of Actinides : the Case of U-235, Np-238 and Pu-241
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锕系元素光子强度函数的研究:以U-235、Np-238和Pu-241为例
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发表时间：
2011
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通讯作者：
T. Rauscher
中科院分区：
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作者：
C. Guerrero;F. Álvarez;D. Cano;T. Martinez;E. Mendoza;D. Villamarín;N. Colonna;M. Meaze;S. Marrone;G. Tagliente;R. Terlizzi;F. Belloni;U. Abbondanno;K. Fujii;P. Milazzo;C. Moreau;G. Aerts;E. Berthoumieux;W. Dridi;F. Gunsing;J. Pancin;L. Perrot;A. Plukis;H. Álvarez;I. Ďuran;C. Paradela;S. Andriamonje;M. Calviani;E. Chiaveri;E. González;Y. Kadi;M. C. Vicente;V. Vlachoudis;J. Andrzejewski;J. Marganiec;P. Assimakopoulos;D. Karadimos;D. Karamanis;C. Papachristodoulou;N. Patronis;L. Audouin;S. David;L. Ferrant;S. Isaev;C. Stéphan;L. Tassan;G. Badurek;E. Jericha;H. Leeb;T. Rauscher
中核和重核中激发能级的衰变可以通过光子强度函数和能级密度分布以统计方法来描述。基于使用高效探测器的中子捕获后的电磁级联研究已被证明非常适合探测重（高能级密度）和/或放射性（高背景）核的光子强度函数的特性。在这项工作中，我们首次研究了锕系元素推荐的 PSF 的有效性，特别是 {sup 235}U、{sup 238}Np 和 {sup 241}Pu。我们的研究包括寻找 Sn 下面的 PSF 中的共振结构，并得出关于它们的存在及其在能量、宽度和电磁性质方面的特征的结论。
The decay from excited levels in medium and heavy nuclei can be described in a statistical approach by means of Photon Strength Functions and Level Density distributions. The study of electromagnetic cascades following neutron capture based on the use of high efficiency detectors has been shown to be well suited for probing the properties of the Photon Strength Function of heavy (high level density) and/or radioactive (high background) nuclei. In this work we have investigated for the first time the validity of the recommended PSF of actinides, in particular {sup 235}U, {sup 238}Np and {sup 241}Pu. Our study includes the search for resonance structures in the PSF below Sn and draws conclusions regarding their existence and their characteristics in terms of energy, width and electromagnetic nature.