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Journal Articles

The Measurement of $$^{77}$$Se($$gamma$$, n) cross section and the evaluation of uncertainty of $$^{79}$$Se(n, $$gamma$$) cross section

Kitatani, Fumito

Kaku Deta Nyusu (Internet), (114), p.44 - 49, 2016/06

no abstracts in English

Journal Articles

Current activities and future plans for nuclear data measurements at J-PARC

Kimura, Atsushi; Harada, Hideo; Nakamura, Shoji; Iwamoto, Osamu; Toh, Yosuke; Koizumi, Mitsuo; Kitatani, Fumito; Furutaka, Kazuyoshi; Igashira, Masayuki*; Katabuchi, Tatsuya*; et al.

European Physical Journal A, 51(12), p.180_1 - 180_8, 2015/12

 Times Cited Count:3 Percentile:30.26(Physics, Nuclear)

Journal Articles

$$s$$-process branching at $$^{185}$$W revised

Mohr, P.*; Shizuma, Toshiyuki; Ueda, Hiroyasu*; Goko, Shinji*; Makinaga, Ayano*; Hara, Kaoru*; Hayakawa, Takehito; Lui, Y.-W.*; Ogaki, Hideaki*; Utsunomiya, Hiroaki*

Physical Review C, 69(3), p.032801_1 - 032801_4, 2004/03

 Times Cited Count:35 Percentile:84.6(Physics, Nuclear)

The neutron capture cross section of the unstable s-process branching nucleus $$^{185}$$W has been derived from experimental data of the inverse $$^{186}$$W($$gamma$$,n)$$^{185}$$W photodisintegration taken with monochromatic photon beams from laser Compton scattering. The result of $$sigma = 553 pm 60$$mb at $$kT = 30$$keV leads to a relatively high effective neutron density in the classical s process of $$N_{rm{n}} = 4.7 times 10^8,{rm{cm}}^{-3}$$. A realistic model for the s process in thermally pulsing AGB stars overestimates the abundance of $$^{186}$$Os significantly because of the relatively small neutron capture cross section of $$^{185}$$W.

JAEA Reports

Measurement of neutron capture cross sections of Tc-99

*

JNC TJ9400 99-001, 78 Pages, 1999/03

JNC-TJ9400-99-001.pdf:2.07MB

For studies on incineration of long-lived fission products (LLFPs) in a fast reactor, detailed characteristics of reactor core such as incineration performance have to be investigated. Therefore, accurate neutron cross section data of LLFPs become necessary. In the present study, in order to perform the precise measurements of keV-neutron capture cross sections of Tc-99, which is one of most important LLFPs, the details of the Tc-99 sample and the measurements with our experimental facilities were investigated.

Oral presentation

Oral presentation

Current activities for nuclear data measurements at ANNRI

Kimura, Atsushi; Harada, Hideo; Nakamura, Shoji; Toh, Yosuke; Igashira, Masayuki*; Katabuchi, Tatsuya*; Mizumoto, Motoharu*; Hori, Junichi*; Kino, Koichi*

no journal, , 

Oral presentation

Measurement of neutron-capture cross section of $$^{120}$$Sn with the array of Ge spectrometer at the J-PARC/MLF/ANNRI

Kimura, Atsushi; Harada, Hideo; Nakamura, Shoji; Toh, Yosuke; Igashira, Masayuki*; Katabuchi, Tatsuya*; Mizumoto, Motoharu*; Hori, Junichi*; Kino, Koichi*

no journal, , 

Oral presentation

R&D for accuracy improvement of neutron nuclear data on minor actinides, 4; Measurements of neutron capture and total cross sections of$$^{243}$$Am with ANNRI at J-PARC

Kimura, Atsushi; Nakamura, Shoji; Terada, Kazushi; Nakao, Taro; Harada, Hideo; Katabuchi, Tatsuya*; Igashira, Masayuki*; Takamiya, Koichi*; Fukutani, Satoshi*; Fujii, Toshiyuki*; et al.

no journal, , 

no abstracts in English

Oral presentation

Study on accuracy improvement of fast-neutron capture reaction data of long-lived MA for development of nuclear transmutation systems, 2; Development of a neutron beam filter system and capture cross section measurement at ANNRI in J-PARC

Kimura, Atsushi; Nakamura, Shoji; Iwamoto, Nobuyuki; Iwamoto, Osamu; Katabuchi, Tatsuya*; Terada, Kazushi*; Rovira, G.*; Hori, Junichi*; Shibahara, Yuji*

no journal, , 

no abstracts in English

Oral presentation

Research and development for accuracy improvement of neutron capture cross-section data on $$^{243}$$Am

Nakamura, Shoji; Shibahara, Yuji*; Endo, Shunsuke; Kimura, Atsushi

no journal, , 

Research and development were made for accuracy improvement of neutron capture cross-section data on $$^{243}$$Am among minor actinides. First, the emission probabilities of decay $$gamma$$-rays were obtained with high accuracy, and the amount of the ground state of $$^{244}$$Am produced by reactor neutron irradiation of $$^{243}$$Am was examinded by$$gamma$$-ray measurement. Next, the total amount of isomer and ground states was examoned by $$alpha$$-ray measurement. This presentation will give the details of the measurenmets and the results of the neutron capture cross-sections of $$^{243}$$Am.

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