Measurement of relative intensity of the discrete γ rays from the thermal neutron capture reaction 155;157Gd(n; γ) using ANNRI detector (JPARC)

Pretam Kumar Das, K. Hagiwara, T. Tanaka, Y. Yamada, I. Ou, M. S. Reen, T. Yano, T. Mori, T. Kayano, R. Dhir, Yusuke Koshio, Makoto Sakuda, A. Kimura, N. Iwamoto, S. Nakamura, H. Harada

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Abstract

We have measured the discrete γ rays from thermal neutron capture on enriched gadolinium targets (155Gd and 157Gd) using the ANNRI Germanium Spectrometer at JPARC. The photo-peak efficiencies were calibrated from 0.2 to 9 MeV using γ rays from the standard radioactive sources (60Co, 152Eu) and prompt γ rays from 35Cl(n; g) reaction. We have calculated the relative intensities of discrete γ rays from 157Gd(n; g) reaction. We found that our data are in fair agreement with the values published by NNDC (CapGam). We present the relative intensities of discrete γ rays from 155Gd(n; g) reaction measured for the first time.

Original languageEnglish
Article number045
JournalProceedings of Science
Volume2017-January
Publication statusPublished - Jan 1 2017

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Kumar Das, P., Hagiwara, K., Tanaka, T., Yamada, Y., Ou, I., Reen, M. S., Yano, T., Mori, T., Kayano, T., Dhir, R., Koshio, Y., Sakuda, M., Kimura, A., Iwamoto, N., Nakamura, S., & Harada, H. (2017). Measurement of relative intensity of the discrete γ rays from the thermal neutron capture reaction 155;157Gd(n; γ) using ANNRI detector (JPARC). Proceedings of Science, 2017-January, [045].