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Spectroscopic Measurement of L X-rays Emitted by Transuranium Elements by Using TES Microcalorimeter |
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| Authors: | M. Maeda K. Maehata N. Iyomoto K. Ishibashi K. Takasaki K. Nakamura K. Aoki K. Mitsuda K. Tanaka |
| Affiliation: | 1. Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka-shi, Fukuoka?, 819-0395, Japan 2. Japan Atomic Energy Agency, 4-33 Muramatsu Tokai-mura, Naka-gun, Ibaraki, 319-1194, Japan 3. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), 3-1-1 Yoshinodai, Chuo-ku, Sagamihara-shi, Kanagawa, 252-5210, Japan 4. Hitachi High-Tech Science Corporation RBM Tsukiji Bldg. Shintomi 2-15-5, Chuo-ku, Tokyo, 104-0041, Japan |
| Abstract: | Energy spectra of L X-rays emitted by (^{237}) Np and uranium isotopes progenies of (^{241}) Am and plutonium isotopes were measured by a transition edge sensor (TES) microcalorimeter for demonstration of peak separation with high energy resolution. L X-ray photons emitted by transuranium (TRU) elements can to be utilized for a nondestructive TRU monitor. Major L X-ray peaks are clearly distinguished in the energy spectrum of L X-rays obtained by the simultaneous measurement for radiation sources of (^{241}) Am and plutonium isotopes. The value of full width at half maximum energy resolution is 60.21 eV for a peak corresponding to Np L (_{beta 1}) X -rays of 17.751 keV in (^{241}) Am source measurement. Comparable energy resolutions were obtained in other experiments. This measurement demonstrated separation of (^{241}) Am and plutonium isotopes by L X-ray spectroscopy using TES microcalorimeter. |
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