Preparation of source and sealed absorber holder for237Np and238U Mössbauer measurements |
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| Authors: | M Nakada M Saeki N M Masaki S Tsutsui |
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| Institution: | (1) Advanced Science Research Center, Japan Atomic Energy Research Institute, 319-11 Tokai-mura, Ibaraki-ken, Japan;(2) Present address: Graduate School of Engineering Science, Osaka University, Osaka, Japan |
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| Abstract: | Preparation of source and sample holder is described for the Mössbauer studies of237Np and238U. For the Mössbauer measurement of237Np, a source assembly with small sources of241Am metal was developed taking account of the transport regulations for radioactive substances. The source assembly of241Am showed a sufficient activity enough to measure the Mössbauer spectra of237Np. In order to handle237Np compounds safely, trebly sealed holders were designed which could encapsulate237Np samples without the seepage of liquid helium. A source for238U Mössbauer measurement was also developed from a highly pure242PuO2. |
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