Nuclear forward scattering for high energy mössbauer transitions.
Nuclear forward scattering for high energy mössbauer transitions.
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高能穆斯堡尔跃迁的核前向散射。
DOI：
10.1103/physrevlett.99.097601
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发表时间：
2007
影响因子：
8.6
通讯作者：
U. van Bürck
中科院分区：
文献类型：
--
作者：
I. Sergueev;A. Chumakov;T. H. D. Beaume;R. Rüffer;C. Strohm;U. van Bürck
本文用低折射率硅单晶单色器和多元探测器研究了~（61）Ni 67.41 keV共振的同步辐射核前向散射。这种方法可以推广到其他高能穆斯堡尔跃迁，并且对样品环境没有任何限制。在大样品厚度和短核寿命的条件下，典型的高能核共振工作，核衰变遵循普遍的依赖性，其中厚度效应和超精细相互作用都考虑到时间标度。
We have studied nuclear forward scattering of synchrotron radiation for the 67.41 keV resonance of 61Ni using a silicon crystal monochromator with low-index reflections and a multielement detector. This approach can be extended to other high-energy Mössbauer transitions and does not pose any restrictions on the sample environment. Under conditions of large sample thickness and short nuclear lifetime, typical for work with high-energy nuclear resonances, the nuclear decay follows a universal dependence where both thickness effects and hyperfine interactions are taken into account by time scaling.