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Journal Articles

Search for $$alpha$$ decay of $$^{104}$$Te with a novel recoil-decay scintillation detector

Xiao, Y.*; Go, S.*; Grzywacz, R.*; Orlandi, R.; Andreyev, A. N.; Asai, Masato; Bentley, M. A.*; de Angelis, G.*; Gross, C. J.*; Hausladen, P.*; et al.

Physical Review C, 100(3), p.034315_1 - 034315_8, 2019/09

 Times Cited Count:4 Percentile:18.92(Physics, Nuclear)

Journal Articles

New measurement of the $$^{8}$$Li($$alpha$$,n)$$^{11}$$B reaction in a lower-energy region below the Coulomb barrier

Das, S. K.*; Fukuda, Tomokazu*; Mizoi, Yutaka*; Ishiyama, Hironobu*; Miyatake, Hiroari*; Watanabe, Yutaka*; Hirayama, Yoshikazu*; Jeong, S. C.*; Ikezoe, Hiroshi*; Matsuda, Makoto; et al.

Physical Review C, 95(5), p.055805_1 - 055805_4, 2017/05

 Times Cited Count:0 Percentile:100(Physics, Nuclear)

Journal Articles

Excitation energy dependence of fragment-mass distributions from fission of $$^{180,190}$$Hg formed in fusion reactions of $$^{36}$$Ar + $$^{144,154}$$Sm

Nishio, Katsuhisa; Andreyev, A. N.*; Chapman, R.*; Derkx, X.*; D$"u$llmann, C. E.*; Ghys, L.*; He${ss}$berger, F. P.*; Hirose, Kentaro; Ikezoe, Hiroshi*; Khuyagbaatar, J.*; et al.

Physics Letters B, 748, p.89 - 94, 2015/09

 Times Cited Count:17 Percentile:18.12(Astronomy & Astrophysics)

Journal Articles

In-beam fissio study at JAEA for heavy element synthesis

Nishio, Katsuhisa; Ikezoe, Hiroshi; Hofmann, S.*; Ackermann, D.*; Aritomo, Yoshihiro*; Comas, V. F.*; D$"u$llmann, Ch. E.*; Heinz, S.*; Heredia, J. A.*; He${ss}$berger, F. P.*; et al.

AIP Conference Proceedings 1524, p.68 - 72, 2013/04

 Times Cited Count:0 Percentile:100

Journal Articles

Evidence for hindrance in fusion between sulfur and lead nuclei

Khuyagbaatar, J.*; Nishio, Katsuhisa; Hofmann, S.*; Ackermann, D.*; Block, M.*; Heinz, S.*; He${ss}$berger, F. P.*; Hirose, Kentaro; Ikezoe, Hiroshi; Kindler, B.*; et al.

Physical Review C, 86(6), p.064602_1 - 064602_6, 2012/12

 Times Cited Count:15 Percentile:31.1(Physics, Nuclear)

Journal Articles

Fusion probabilities in the reactions $$^{40,48}$$Ca + $$^{238}$$U at energies around the Coulomb barrier

Nishio, Katsuhisa; Mitsuoka, Shinichi; Nishinaka, Ichiro; Makii, Hiroyuki; Wakabayashi, Yasuo*; Ikezoe, Hiroshi; Hirose, Kentaro*; Otsuki, Tsutomu*; Aritomo, Yoshihiro*; Hofmann, S.*

Physical Review C, 86(3), p.034608_1 - 034608_6, 2012/09

 Times Cited Count:56 Percentile:5.33(Physics, Nuclear)

Journal Articles

Investigation of fission properties and evaporation residue measurement in the reactions using $$^{238}$$U target nucleus

Nishio, Katsuhisa; Ikezoe, Hiroshi; Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Aritomo, Yoshihiro; Comas, V. F.*; D$"u$llmann, Ch. E.*; Gorshkov, A.*; Graeger, R.*; et al.

EPJ Web of Conferences, 17, p.09005_1 - 09005_4, 2011/10

 Times Cited Count:1 Percentile:50.35

Journal Articles

Nuclear orientation in the reaction $$^{34}$$S+$$^{238}$$U and synthesis of the new isotope $$^{268}$$Hs

Nishio, Katsuhisa; Hofmann, S.*; He${ss}$berger, F. P.*; Ackermann, D.*; Antalic, S.*; Aritomo, Yoshihiro; Comas, V. F.*; D$"u$llmann, Ch. E.*; Gorshkov, A.*; Graeger, R.*; et al.

Physical Review C, 82(2), p.024611_1 - 024611_9, 2010/08

 Times Cited Count:66 Percentile:4(Physics, Nuclear)

Journal Articles

Barrier distribution of quasi-elastic backward scattering in very heavy reaction systems

Mitsuoka, Shinichi; Ikezoe, Hiroshi; Nishio, Katsuhisa; Watanabe, Yutaka*; Jeong, S. C.*; Ishiyama, Hironobu*; Hirayama, Yoshikazu*; Imai, Nobuaki*; Miyatake, Hiroari

International Journal of Modern Physics E, 19(5&6), p.989 - 996, 2010/07

 Times Cited Count:0 Percentile:100(Physics, Nuclear)

We have measured quasi-elastic scattering cross sections in reactions of $$^{48}$$Ti, $$^{54}$$Cr, $$^{56}$$Fe, $$^{64}$$Ni and $$^{70}$$Zn + $$^{208}$$Pb, relating to Pb-based cold fusion reactions for super-heavy elements 104, 106, 108, 110 and 112, respectively. A thin target of $$^{208}$$Pb was bombarded by heavy-ion beams supplied from the JAEA tandem-booster accelerator with changing the beam energy in steps of 1.5 MeV. The barrier distributions were derived from the first derivative of the excitation functions measured at backward angles of 172$$^{circ}$$, 168$$^{circ}$$ and 162$$^{circ}$$. The centroid of the barrier distributions showed a deviation from several predicted barrier heights toward the low energy side. The shape of the barrier distributions was well reproduced by the results of a coupled-channel calculation taking account of the coupling effects of the collective vibrational excitations in the projectile and target nuclei. We have recently obtained similar results in heavier reactions of $$^{76}$$Ge and $$^{86}$$Kr + $$^{208}$$Pb.

Journal Articles

Effects of nuclear orientation on fusion and fission process for reactions using uranium target nuclei

Nishio, Katsuhisa; Ikezoe, Hiroshi; Mitsuoka, Shinichi; Nishinaka, Ichiro; Makii, Hiroyuki; Watanabe, Yutaka*; Nagame, Yuichiro; Otsuki, Tsutomu*; Hirose, Kentaro*; Hofmann, S.*

AIP Conference Proceedings 1224, p.301 - 310, 2010/04

 Times Cited Count:5 Percentile:14.14

Journal Articles

Effects of nuclear orientation on fusion and fission in the reaction using $$^{238}$$U target nucleus

Nishio, Katsuhisa; Ikezoe, Hiroshi; Mitsuoka, Shinichi; Nishinaka, Ichiro; Nagame, Yuichiro; Otsuki, Tsutomu*; Hirose, Kentaro*; Hofmann, S.*

EPJ Web of Conferences, 2, p.10001_1 - 10001_3, 2010/03

 Times Cited Count:1 Percentile:50.03

Journal Articles

Dependence of barrier distribution and fusion-fission process on entrance channel

Ikezoe, Hiroshi; Mitsuoka, Shinichi; Nishio, Katsuhisa; Watanabe, Yutaka*; Jeong, S. C.*; Otsuki, Tsutomu*; Hirose, Kentaro*

Nuclear Physics A, 834(1-4), p.172c - 175c, 2010/03

 Times Cited Count:1 Percentile:84.8(Physics, Nuclear)

The Coulomb barrier distribution between heavy nuclei is important quantity to investigate the effect of quantum couplings of nuclear vibration and nucleon transfer to nucleus-nucleus interaction. We obtained the barrier distributions of lead-based fusion reactions of $$^{48}$$Ti, $$^{54}$$Cr, $$^{56}$$Fe, $$^{64}$$Ni, $$^{70}$$Zn, $$^{76}$$Ge, and $$^{86}$$Kr projectiles on $$^{208}$$Pb by means of the measurements of the quasi-elastic cross sections at backward scattering angles. The obtained positions and widths of the barrier distributions are compared with a calculation taking account of the channel couplings. The effect of the nuclear deformation on reaction process was also investigated by means of the measurements of product mass distributions for the systems of $$^{30}$$Si, $$^{36}$$S, $$^{40}$$Ar projectiles on $$^{238}$$U. We found that the collision at polar side gives rise to quasi-fission, where an asymmetric fission is dominant.

Journal Articles

Evidence for quasifission in the sub-barrier reaction of $$^{30}$$Si+$$^{238}$$U

Nishio, Katsuhisa; Ikezoe, Hiroshi; Nishinaka, Ichiro; Mitsuoka, Shinichi; Hirose, Kentaro*; Otsuki, Tsutomu*; Watanabe, Yutaka*; Aritomo, Yoshihiro*; Hofmann, S.*

Physical Review C, 82(4), p.044604_1 - 044604_5, 2010/00

 Times Cited Count:40 Percentile:8.56(Physics, Nuclear)

Journal Articles

Effects of nuclear orientation on fission fragment mass distributions in the reactions using actinide target nuclei

Nishio, Katsuhisa; Ikezoe, Hiroshi; Mitsuoka, Shinichi; Nishinaka, Ichiro; Makii, Hiroyuki; Watanabe, Yutaka*; Nagame, Yuichiro; Otsuki, Tsutomu*; Hirose, Kentaro*; Hofmann, S.*

AIP Conference Proceedings 1175, p.111 - 118, 2009/10

Journal Articles

Effects of nuclear orientation on fission fragment mass distributions in the reactions using actinide target nuclei

Nishio, Katsuhisa; Ikezoe, Hiroshi; Mitsuoka, Shinichi; Nishinaka, Ichiro; Makii, Hiroyuki; Watanabe, Yutaka*; Nagame, Yuichiro; Otsuki, Tsutomu*; Hirose, Kentaro*; Hofmann, S.*

AIP Conference Proceedings 1175, p.111 - 118, 2009/10

JAEA Reports

Reports of JAEA's Reimei Research Program; April 1, 2008 - March 31, 2009

Ikezoe, Hiroshi

JAEA-Review 2009-026, 55 Pages, 2009/09

JAEA-Review-2009-026.pdf:25.45MB

The summaries of the 8 research projects conducted through the Reimei Research Program are published for the growth and development of the new researches.

Journal Articles

Effects of nuclear orientation on fusion and fission process in heavy ion reactions

Nishio, Katsuhisa; Ikezoe, Hiroshi; Mitsuoka, Shinichi; Nishinaka, Ichiro; Watanabe, Yutaka*; Nagame, Yuichiro; Otsuki, Tsutomu*; Hirose, Kentaro*; Hofmann, S.*

AIP Conference Proceedings 1120 (Internet), p.275 - 279, 2009/05

Journal Articles

A New measurement of the astrophysical $$^8$$Li(d,t)$$^7$$Li reaction

Hashimoto, Takashi; Ishiyama, Hironobu*; Watanabe, Yutaka*; Hirayama, Yoshikazu*; Imai, Nobuaki*; Miyatake, Hiroari; Jeong, S.-C.*; Tanaka, Masahiko*; Yoshikawa, Nobuharu*; Nomura, Toru*; et al.

Physics Letters B, 674(4-5), p.276 - 280, 2009/04

 Times Cited Count:6 Percentile:53.63(Astronomy & Astrophysics)

The excitation function of the $$^8$$Li(d,t)$$^7$$Li reaction was directly measured using $$^8$$Li beams at E$$_{mathrm{cm}}$$ = 0.3, 0.4, 0.5, 0.7, 0.8, 1.0, 1.1, and 1.2 MeV with CD$$_2$$ targets. The beam energies covered the Gamow peaks for 1$$sim$$3$$times$$10$$^9$$ K. Large cross sections were observed at around E$$_{mathrm{cm}}$$ = 0.8 MeV, implying a resonance state located at 22.4 MeV in $$^{10}$$Be. The present astrophysical reaction rate is higher in one order magnitude than the presently adopted rate at around 1$$times$$10$$^9$$ K.

Journal Articles

Effects of nuclear orientation on fission fragment mass distributions in the reactions of $$^{34,36}$$S+$$^{238}$$U

Nishio, Katsuhisa; Ikezoe, Hiroshi; Mitsuoka, Shinichi; Nishinaka, Ichiro; Watanabe, Yutaka*; Nagame, Yuichiro; Otsuki, Tsutomu*; Hirose, Kentaro*; Hofmann, S.*

AIP Conference Proceedings 1098, p.289 - 294, 2009/03

JAEA Reports

Report on JAEA's Reimei Research Program

Ikezoe, Hiroshi

JAEA-Review 2008-066, 55 Pages, 2009/02

JAEA-Review-2008-066.pdf:6.37MB

The summaries of the 9 research subjects conducted through the Reimei Research Program are published for the growth and development of the new researches.

126 (Records 1-20 displayed on this page)