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Featured researches published by Shouhei Araki.


Journal of Nuclear Science and Technology | 2017

Production of high-purity medical radio isotope 64Cu with accelerator-based neutrons generated with 9 and 12 MeV deuterons

Tadahiro Kin; Takaya Kawagoe; Shouhei Araki; Yukinobu Watanabe

ABSTRACT We conducted a feasibility study for producing a high-purity medical radioisotope 64Cu from natural zinc with accelerator-based neutrons. 64Cu isotopes were produced via the 64Zn(n,p) reaction. The accelerator-based neutrons were generated via the C(d,n) reaction using low-energy deuterons of 9 and 12 MeV on a 1-mm-thick carbon target. First, the production purity was estimated using the evaluated nuclear data library JENDL-4.0 and our previously measured thick target neutron yield. We found that even when natural zinc was used as the starting material, significantly high-purity 64Cu could be obtained. Next, irradiation experiments for producing 64Cu using natural zinc were conducted at Kyushu University Tandem Laboratory, with the amounts of 64Cu isotopes and other gamma-emission nuclides measured by a high-purity germanium detector. As a result, high-purity 64Cu isotopes of 1.11(49) × 100 and 3.70 (17) × 100 Bq/g/μC were produced with incident deuteron energies of 9 and 12 MeV, respectively.


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2015

Characterization of high-energy quasi-monoenergetic neutron energy spectra and ambient dose equivalents of 80-389 MeV 7Li(p,n) reactions using a time-of-flight method

Yosuke Iwamoto; Masayuki Hagiwara; Daiki Satoh; Shouhei Araki; Hiroshi Yashima; Tatsuhiko Sato; Akihiko Masuda; Tetsuro Matsumoto; Noriaki Nakao; T. Shima; Tadahiro Kin; Yukinobu Watanabe; Hiroshi Iwase; Takashi Nakamura


Energy Procedia | 2015

Development of a Calculation Code System for Evaluation of Deuteron Nuclear Data

Shinsuke Nakayama; Shouhei Araki; Yukinobu Watanabe; Osamu Iwamoto; Tao Ye; Kazuyuki Ogata


Nuclear Data Sheets | 2014

Cross Section Calculations of Deuteron-induced Reactions Using the Extended CCONE Code

Shinsuke Nakayama; Shouhei Araki; Yukinobu Watanabe; Osamu Iwamoto; Tao Ye; Kazuyuki Ogata


Physical Review Letters | 2017

Role of Multichance Fission in the Description of Fission-Fragment Mass Distributions at High Energies

K. Hirose; K. Nishio; Shouya Tanaka; R. Léguillon; H. Makii; I. Nishinaka; R. Orlandi; K. Tsukada; J. Smallcombe; M. J. Vermeulen; Shuntaro Chiba; Yoshihiro Aritomo; Tsutomu Ohtsuki; Katsura Nakano; Shouhei Araki; Yukinobu Watanabe; Ryotaro Tatsuzawa; Naoyuki Takaki; N. Tamura; S. Goto; I. Tsekhanovich; A. N. Andreyev


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2017

Systematic measurement of double-differential neutron production cross sections for deuteron-induced reactions at an incident energy of 102 MeV

Shouhei Araki; Yukinobu Watanabe; Mizuki Kitajima; Hiroki Sadamatsu; Keita Nakano; Tadahiro Kin; Yosuke Iwamoto; Daiki Satoh; Masayuki Hagiwara; Hiroshi Yashima; T. Shima


Energy Procedia | 2015

Measurement of Double Differential Neutron Yields from Thick Aluminum Target Irradiated by 9 MeV Deuteron

Shouhei Araki; Yukinobu Watanabe; Tadahiro Kin; Nobuhiro Shigyo; K. Sagara


Progress of Theoretical and Experimental Physics | 2017

Spallation reaction study for the long-lived fission product 107Pd

He Wang; Hideaki Otsu; H. Sakurai; D. S. Ahn; Masayuki Aikawa; Takashi Ando; Shouhei Araki; Sidong Chen; N. Chiga; P. Doornenbal; N. Fukuda; T. Isobe; Shunsuke Kawakami; S. Kawase; Tadahiro Kin; Y. Kondo; S. Koyama; Shigeru Kubono; Y. Maeda; Ayano Makinaga; Masafumi Matsushita; Teiichiro Matsuzaki; S. Michimasa; S. Momiyama; Shunsuke Nagamine; Takashi Nakamura; Keita Nakano; M. Niikura; Tomoyuki Ozaki; Atsumi Saito


Progress of Theoretical and Experimental Physics | 2017

Study of proton- and deuteron-induced spallation reactions on the long-lived fission product 93Zr at 105 MeV/nucleon in inverse kinematics

S. Kawase; Keita Nakano; Yukinobu Watanabe; He Wang; Hideaki Otsu; H. Sakurai; Deuk Soon Ahn; Masayuki Aikawa; Takashi Ando; Shouhei Araki; Sidong Chen; N. Chiga; P. Doornenbal; N. Fukuda; T. Isobe; Shunsuke Kawakami; Tadahiro Kin; Y. Kondo; S. Koyama; Shigeru Kubono; Y. Maeda; Ayano Makinaga; Masafumi Matsushita; Teiichiro Matsuzaki; S. Michimasa; S. Momiyama; Shunsuke Nagamine; Takashi Nakamura; M. Niikura; Tomoyuki Ozaki


Journal of Radiation Protection and Research | 2017

Measurement of Gamma-ray Yield from Thick Carbon Target Irradiated by 5 and 9 MeV Deuterons

Shouhei Araki; Kazuhiro Kondo; Tadahiro Kin; Yukinobu Watanabe; Nobuhiro Shigyo; K. Sagara

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Takashi Nakamura

Tokyo Institute of Technology

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P. Doornenbal

GSI Helmholtz Centre for Heavy Ion Research

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