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Journal of Radioanalytical and Nuclear Chemistry
Authors: M. Kubo, H. Moriyama, Y. Tsuruoka, S. Sakamoto, E. Koseto, T. Saito, and K. Nishiyama

Abstract  

An elemental analysis method using muonic X-rays has been developed. Applying the unique features of the negative muon, this method enables elemental distribution in an object to be obtained three dimensionally and non-destructively. Especially, by choosing the incident muon beam energy, depth-profiling as deep as several cm from the surface can be achieved by detecting the high energy muonic X-rays carrying the information of the atom which captured the muon. We obtained some preliminary results and showed the applicability of the technique in future analytical facilities.

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Journal of Radioanalytical and Nuclear Chemistry
Authors: Y. Kobayashi, Y. Tsuruoka, M. Kubo, H. Nonaka, Y. Yamada, Y. Sakai, H. Shoji, W. Sato, A. Shinohara, Y. Watanabe, and H. Matsue

Abstract  

In order to investigate the physical and chemical effects of neutron capture reaction, a neutron in-beam Mössbauer spectroscopic study on two isomorphs of iron disulfide: pyrite and marcasite, were carried out with a parallel plate avalanche counter at room temperature. In both compounds only two major products accounted for the obtained spectrum: one with Mössbauer parameters close to the parent compound and the other one considered to be a new product. The yield of the parent-like species was different in the two isomorphs.

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