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Mössbauer spectroscopic study of frozen solutions of57Co using a specially designed cryostat for time differential coincidence emission Mössbauer spectroscopy of237Np |
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| Authors: | Masakatsu Saeki Masami Nakada Nobuyuki M Masaki Zenko Yoshida Kazutoyo Endo Yoshitaka Minai Toshiyuki Yamashita Hiroshi Mutoh Masaaki Magara |
| Institution: | (1) Advanced Science Research Center, Japan Atomic Energy Research Institute, Toukai-mura, 319-11 Ibaraki-ken, Japan;(2) Showa College of Pharmaceutical Sciences, Higashi-Tamagawagakuen, Machida-shi, 194 Tokyo, Japan;(3) Faculty of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113 Tokyo, Japan |
| Abstract: | Experiments on the57Fe Mössbauer effect in frozen solutions were carried out in order to demonstrate the capabilities of a cryostat which was developed for the emission Mössbauer spectroscopy of237Np. We confirmed the existence of an aliovalent state of57Fe in the temperature range from 5.5 to 35 K. However, the relative amounts of Fe(II) and Fe(III) in the frozen matrix were almost constant for the temperature range from 5.5 to 150 K. The design, operation and capabilities of the cryostat are also described. |
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