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Journal Articles

Surface study of organopalladium molecules on S-terminated GaAs

Konishi, Tomoya*; Nishiwaki, Nagatoshi*; Tojo, Takashi*; Ishikawa, Takuma*; Teraoka, Teruki*; Ueta, Yukiko*; Kihara, Yoshifumi*; Moritoki, Hideji*; Tono, Tatsuo*; Musashi, Mio*; et al.

Physica Status Solidi (C), 8(2), p.405 - 407, 2011/02

https://doi.org/10.1002/pssc.201000436
 Times Cited Count：3 Percentile：74.28(Engineering, Electrical & Electronic)

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

https://doi.org/10.1016/j.physletb.2009.03.031
 Times Cited Count：7 Percentile：46.66(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

A New measurement of the astrophysical $$^8$$Li($$alpha$$, n)$$^{11}$$B reaction

Ishiyama, Hironobu*; Hashimoto, Takashi; Ishikawa, Tomoko*; Watanabe, Yutaka*; Das, S. K.*; Miyatake, Hiroari; Mizoi, Yutaka*; Fukuda, Tomokazu*; Tanaka, Masahiko*; Fuchi, Yoshihide*; et al.

Physics Letters B, 640(3), p.82 - 85, 2006/09

https://doi.org/10.1016/j.physletb.2006.07.036
 Times Cited Count：33 Percentile：84.57(Astronomy & Astrophysics)

The excitation function of the $$^{8}$$Li($$alpha$$,n)$$^{11}$$B reaction was measured while identifying the final state event by event in the region of E$$_{rm{cm}}$$ = 0.7 - 2.6 MeV using a highly efficient detector system and a low-energy $$^8$$Li beam. The results are much improved both in statistics and precisions, and show smaller cross sections than those of previous measurements by a factor of more than 2 in the low-energy region of E$$_{rm{cm}}le$$ 1.5 MeV. A resonance-like structure is found at around E$$_{rm{cm}}$$ = 0.85 MeV.

Journal Articles

A New measurement of the $$^8$$Li($$alpha$$,n)$$^{11}$$B reaction for astrophysical interest

Das, S. K.*; Fukuda, Tomokazu*; Mizoi, Yutaka*; Ishiyama, Hironobu*; Miyatake, Hiroari*; Watanabe, Yutaka*; Hirayama, Yoshikazu*; Tanaka, Masahiko*; Yoshikawa, Nobuharu*; Jeong, S.-C.*; et al.

AIP Conference Proceedings 847, p.374 - 376, 2006/07

https://doi.org/10.1063/1.2234430

no abstracts in English

Oral presentation

Direct measurements of astrophysical nuclear reaction rates on light neutron-rich nuclei at TRIAC and JAEA-RMS

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

no journal, , 

no abstracts in English

Oral presentation

Direct measurement of the $$^{8}$$Li(d,t)(d,p)(d,$$alpha$$) reaction cross sections

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

no journal, , 

no abstracts in English

Oral presentation

Direct measurements of the astrophysical $$^8$$Li(d,t),(d,p),(d,$$alpha$$) reactions

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

no journal, , 

no abstracts in English

Oral presentation

A Systematic study of astrophysical nuclear reaction rates via $$^8$$Li

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

no journal, , 

A systematic study of astrophysical reaction rates on light neutron-rich nuclei using low-energy radioactive nuclear beams (RNB) is in progress at the tandem facility of Japan Atomic Energy Agency (JAEA). Direct measurements of reaction rates of $$^8$$Li($$alpha$$, n)$$^{11}$$B, $$^{12}$$B($$alpha$$, n)$$^{15}$$N and, $$^8$$Li(d, p), (d, t), (d, $$alpha$$), (p, $$alpha$$) have been carried out. Measured excitation functions and obtained reaction rates will be presented. Possible r-process path via $$^8$$Li at each temperature during r-process and the influence of r-process abundance will be discussed.

Oral presentation

Direct measurement of astrophysical $$^8$$Li(d,t)$$^7$$Li reaction

Hashimoto, Takashi; Miyatake, Hiroari; Mitsuoka, Shinichi; Nishio, Katsuhisa; Sato, Tetsuya; Ichikawa, Shinichi; Osa, Akihiko; Matsuda, Makoto; Ishiyama, Hironobu*; Watanabe, Yutaka*; et al.

no journal, , 

no abstracts in English

Oral presentation

Study of astrophysical ($$alpha$$,n) reactions on light neutron-rich nuclei using low-energy radioactive nuclear beams

Hashimoto, Takashi; Mitsuoka, Shinichi; Ichikawa, Shinichi; Ikezoe, Hiroshi; Miyatake, Hiroari; Ishiyama, Hironobu*; Watanabe, Yutaka*; Hirayama, Yoshikazu*; Imai, Nobuaki*; Tanaka, Masahiko*; et al.

no journal, , 

no abstracts in English

10 (Records 1-10 displayed on this page)
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