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Journal Articles

Study of fission using multi-nucleon transfer reactions

Nishio, Katsuhisa; Hirose, Kentaro; L$'e$guillon, R.*; Makii, Hiroyuki; Orlandi, R.; Tsukada, Kazuaki; Smallcombe, J.*; Chiba, Satoshi*; Aritomo, Yoshihiro*; Tanaka, Shoya*; et al.

Proceedings of 6th International Conference on Fission and Properties of Neutron-rich Nuclei (ICFN-6), p.590 - 597, 2017/11

Journal Articles

Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the $$^{18}$$O + $$^{232}$$Th reaction

L$'e$guillon, R.; Nishio, Katsuhisa; Hirose, Kentaro; Makii, Hiroyuki; Nishinaka, Ichiro*; Orlandi, R.; Tsukada, Kazuaki; Smallcombe, J.*; Chiba, Satoshi*; Aritomo, Yoshihiro*; et al.

Physics Letters B, 761, p.125 - 130, 2016/10

 Times Cited Count:31 Percentile:92.7(Astronomy & Astrophysics)

Journal Articles

Direct and indirect processes in photon-stimulated ion desorption from condensed formamide

Ikeura, Hiromi*; Sekiguchi, Tetsuhiro; Baba, Yuji; Imamura, Motoyasu*; Matsubayashi, Nobuyuki*; Shimada, Hiromichi*

Surface Science, 593(1-3), p.303 - 309, 2005/11

 Times Cited Count:5 Percentile:27.34(Chemistry, Physical)

no abstracts in English

JAEA Reports

A Systematics of fission product mass yields with 5 gaussian functions

Katakura, Junichi

JAERI-Research 2003-004, 19 Pages, 2003/03

JAERI-Research-2003-004.pdf:0.76MB

no abstracts in English

Journal Articles

Photofission of $$^{209}$$Bi at intermediate energies

Haba, Hiromitsu; Kasaoka, Makoto*; Igarashi, Manabu*; Washiyama, Koshin*; Matsumura, Hiroshi*; Oura, Yasuji*; Shibata, Seiichi*; Sakamoto, Ko*; Furukawa, Michiaki*; Fujiwara, Ichiro*

Radiochimica Acta, 90(7), p.371 - 382, 2002/08

 Times Cited Count:2 Percentile:17.59(Chemistry, Inorganic & Nuclear)

The reaction yields of 63 radionuclides with the mass number A = 56-135 produced in the photofission of $$^{209}$$Bi by bremsstrahlung of end-point energies (E$$_{0}$$) from 450 to 1100 MeV have been measured using a catcher foil technique. The charge distribution was well reproduced by a Gaussian function with the most probable charge (Z$$_{p}$$) expressed by Z$$_{p}$$ = RA + S, and with the A-independent FWHME$$_{CD}$$. The charge distribution parameters R, S and FWHM$$_{CD}$$ were independent of E$$_{0}$$ above 600 MeV. The weighted mean values at E$$_{0}$$ $$geq$$ 600 MeV were R = 0.421 $$pm$$ 0.001, S = 0.6 $$pm$$ 0.1 and FWHM$$_{CD}$$ = 2.1 $$pm$$ 0.1 charge unit (c.u.). Based on the charge distribution parameters, the symmetric mass yield distributions with the most probable mass A$$_{p}$$ of 96 $$pm$$ 1 mass unit (m.u.) and the width FWHM$$_{MD}$$ of 33 $$pm$$ 1 m.u. were also obtained. The characteristics of the charge and mass yield distributions are discussed by referring to those for $$^{197}$$Au based on the results of calculations using PICA3/GEM.

JAEA Reports

A BWR pump suction-line 200% break test at ROSA-III program(RUN 903); Effect of prolonged recirculation pump operation

Suzuki, Mitsuhiro; Nakamura, Hideo; Yonomoto, Taisuke; Kumamaru, Hiroshige; Anoda, Yoshinari; Murata, Hideo

JAERI-M 91-103, 156 Pages, 1991/07

JAERI-M-91-103.pdf:4.59MB

no abstracts in English

Journal Articles

The Situation of JPDR decommissioning

; Ikezawa, Yoshio

Hoken Butsuri, 25(3), p.294 - 298, 1990/00

no abstracts in English

JAEA Reports

Journal Articles

Calibration of cascade impactor by two-stage method

; ; ; ;

Journal of Nuclear Science and Technology, 11(11), p.510 - 515, 1974/11

 Times Cited Count:0

no abstracts in English

Oral presentation

Fission fragment mass distributions of Np, Pu and Am isotopes utilizing multi-nucleon transfer reactions

Vermeulen, M. J.; Nishio, Katsuhisa; Makii, Hiroyuki; Hirose, Kentaro; Orlandi, R.; Tsukada, Kazuaki; Chiba, Satoshi*; Andreyev, A.*

no journal, , 

Oral presentation

Measurement of mass-symmetric spontaneous fission of $$^{259}$$Lr

Asai, Masato; Kamada, Hiroki*; Shigekawa, Yudai*; Tsukada, Kazuaki; Sato, Tetsuya; Toyoshima, Atsushi; Mitsukai, Akina; Nagame, Yuichiro; Nishio, Katsuhisa; Hirose, Kentaro; et al.

no journal, , 

To clarify the fission mechanism of mass-symmetric spontaneous fissions observed around the neutron-rich Fm region, we have measured kinetic energies and mass distribution of spontaneous-fission fragments in this nuclear region precisely. The experiment was performed at the JAEA tandem accelerator facility using an on-line isotope separator (ISOL). The mass-separated $$^{259}$$Lr nuclei were implanted into thin foil, and two fragments of their spontaneous fission were coincidently measured with two Si detectors. The spontaneous fission of $$^{259}$$Lr was found to show a narrow symmetric mass distribution. On the other hand, their total kinetic energy TKE was found to be low, which is apparently different from the high-TKE symmetric fissions observed in the Fm isotopes. This indicates that the fission mechanisms of these two symmetric fissions are different.

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