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Journal Articles

Precise intensity measurements in the $$^{14}$$N(n,$$gamma$$)$$^{15}$$N reaction as a $$gamma$$-ray intensity standard up to 11 MeV

Miyazaki, Itaru*; Sakane, Hitoshi*; Takayama, Hirokazu*; Kasaishi, Masafumi*; Tojo, Akinori*; Furuta, Masataka*; Hayashi, Hiroaki*; Suematsu, Osamu*; Narasaki, Hiromichi*; Shimizu, Toshiaki*; et al.

Journal of Nuclear Science and Technology, 45(6), p.481 - 486, 2008/06

 Times Cited Count:5 Percentile:37.69(Nuclear Science & Technology)

The intensities of the prompt $$gamma$$ rays from the $$^{14}$$N(n,$$gamma$$)$$^{15}$$N reaction have been precisely measured. As the samples, a liquid nitrogen target and a deuterated melamine (C$$_{3}$$D$$_{6}$$N$$_{6}$$) were used. The previous values widely used as intensity standards agreed with those obtained in this study within 4-5% in the 2-11 MeV region, however, showed a monotonous decrease with the increase of $$gamma$$-ray energy.

Journal Articles

$$Q_{beta}$$ measurements of $$^{158,159}$$Pm, $$^{159,161}$$Sm, $$^{160-165}$$Eu, $$^{163}$$Gd and $$^{166}$$Tb using a total absorption BGO detector

Hayashi, Hiroaki*; Akita, Yukinori*; Suematsu, Osamu*; Shibata, Michihiro*; Asai, Masato; Sato, Tetsuya; Ichikawa, Shinichi; Nishinaka, Ichiro; Nagame, Yuichiro; Osa, Akihiko; et al.

European Physical Journal A, 34(4), p.363 - 370, 2007/12

 Times Cited Count:16 Percentile:72.91(Physics, Nuclear)

$$Q_{beta}$$ values of $$^{160-165}$$Eu and $$^{163}$$Gd were measured for the first time using a total absorption BGO detector, and the data of $$^{158,159}$$Pm, $$^{159,161}$$Sm, and $$^{166}$$Tb obtained previously were reanalyzed. These nuclei were produced by the proton-induced fission of $$^{238}$$U at the JAEA-Tokai tandem accelerator facility, and separated from the reaction products using an on-line isotope separator. The deduced mass excesses and two-neutron separation energies were compared with those of atomic mass evaluations and theoretical predictions.

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