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Journal Articles

Shell structure of the neutron-rich isotopes $$^{69,71,73}$$Co

Lokotko, T.*; Leblond, S.*; Lee, J.*; Doornenbal, P.*; Obertelli, A.*; Poves, A.*; Nowacki, F.*; Ogata, Kazuyuki*; Yoshida, Kazuki; Authelet, G.*; et al.

Physical Review C, 101(3), p.034314_1 - 034314_7, 2020/03

 Times Cited Count:10 Percentile:69.78(Physics, Nuclear)

The structures of the neutron-rich $$^{69,71,73}$$Co isotopes were investigated via ($$p,2p$$) knockout reactions at the Radioactive Isotope Beam Factory, RIKEN. Level schemes were reconstructed using the $$gamma-gamma$$ coincidence technique, with tentative spin-parity assignments based on the measured inclusive and exclusive cross sections. Comparison with shell-model calculations suggests coexistence of spherical and deformed shapes at low excitation energies in the $$^{69,71,73}$$Co isotopes.

Journal Articles

Enhancement of element production by incomplete fusion reaction with weakly bound deuteron

Wang, H.*; Otsu, Hideaki*; Chiga, Nobuyuki*; Kawase, Shoichiro*; Takeuchi, Satoshi*; Sumikama, Toshiyuki*; Koyama, Shumpei*; Sakurai, Hiroyoshi*; Watanabe, Yukinobu*; Nakayama, Shinsuke; et al.

Communications Physics (Internet), 2(1), p.78_1 - 78_6, 2019/07

 Times Cited Count:8 Percentile:56.2(Physics, Multidisciplinary)

Searching for effective pathways for the production of proton- and neutron-rich isotopes through an optimal combination of reaction mechanism and energy is one of the main driving forces behind experimental and theoretical nuclear reaction studies as well as for practical applications in nuclear transmutation of radioactive waste. We report on a study on incomplete fusion induced by deuteron, which contains one proton and one neutron with a weak binding energy and is easily broken up. This reaction study was achieved by measuring directly the cross sections for both proton and deuteron for $$^{107}$$Pd at 50 MeV/u via inverse kinematics technique. The results provide direct experimental evidence for the onset of a cross-section enhancement at high energy, indicating the potential of incomplete fusion induced by loosely-bound nuclei for creating proton-rich isotopes and nuclear transmutation of radioactive waste.

Journal Articles

Nuclear structure of $$^{76}$$Ni from the ($$p$$,$$2p$$) reaction

Elekes, Z.*; Kripk$'o$, $'A$*; Sohler, D.*; Sieja, K.*; Ogata, Kazuyuki*; Yoshida, Kazuki; Doornenbal, P.*; Obertelli, A.*; Authelet, G.*; Baba, Hidetada*; et al.

Physical Review C, 99(1), p.014312_1 - 014312_7, 2019/01

 Times Cited Count:10 Percentile:64.15(Physics, Nuclear)

The nuclear structure of the $$^{76}$$Ni nucleus was investigated by ($$p$$,$$2p$$) reaction using a NaI(Tl) array to detect the deexciting prompt $$gamma$$ rays. A new transition with an energy of 2227 keV was identified by $$gamma gamma$$ and $$gamma gamma gamma$$ coincidences. Our shell-model calculations using the Lenzi, Nowacki, Poves, and Sieja interaction produced good candidates for the experimental proton hole states in the observed energy region, and the theoretical cross sections showed good agreement with the experimental values. Although we could not assign all the experimental states to the theoretical ones unambiguously, the results are consistent with a reasonably large Z = 28 shell gap for nickel isotopes in accordance with previous studies.

Journal Articles

Shell evolution beyond $$Z$$=28 and $$N$$=50; Spectroscopy of $$^{81,82,83,84}$$Zn

Shand, C. M.*; Podoly$'a$k, Zs.*; G$'o$rska, M.*; Doornenbal, P.*; Obertelli, A.*; Nowacki, F.*; Otsuka, T.*; Sieja, K.*; Tostevin, J. A.*; Tsunoda, T.*; et al.

Physics Letters B, 773, p.492 - 497, 2017/10

 Times Cited Count:25 Percentile:87.36(Astronomy & Astrophysics)

JAEA Reports

Case studies of radiation dose assessment in emergency situation of nuclear facilities

Kawasaki, Masatsugu; Nakajima, Junya; Yoshida, Keisuke; Kato, Saori; Nishino, Sho; Nozaki, Teo; Nakagawa, Masahiro; Tsunoda, Junichi; Sugaya, Yuki; Hasegawa, Rie; et al.

JAEA-Data/Code 2017-004, 57 Pages, 2017/03

JAEA-Data-Code-2017-004.pdf:2.34MB

In emergency situation of nuclear facilities, we need to estimate the radiation dose due to radiation and radioactivity to grasp the influence range of the accident in the early stage. Therefore, we prepare the case studies of dose assessment for public exposure dose and personal exposure dose and contribute them to emergency procedures. This document covers about accidents of nuclear facilities in Nuclear Science Research Institute and past accident of nuclear power plant, and it can be used for inheritance of techniques of emergency dose assessment.

Journal Articles

Deformation-driven $$p$$-wave halos at the drip-line; $$^{31}$$Ne

Nakamura, Takashi*; Kobayashi, Nobuyuki*; Kondo, Yosuke*; Sato, Yoshiteru*; Tostevin, J. A.*; Utsuno, Yutaka; Aoi, Nori*; Baba, Hidetada*; Fukuda, Naoki*; Gibelin, J.*; et al.

Physical Review Letters, 112(14), p.142501_1 - 142501_5, 2014/04

 Times Cited Count:62 Percentile:91.13(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Halo structure of the island of inversion nucleus $$^{31}$$Ne

Nakamura, Takashi*; Kobayashi, Nobuyuki*; Kondo, Yosuke*; Sato, Yoshiteru*; Aoi, Nori*; Baba, Hidetada*; Deguchi, Shigeki*; Fukuda, Naoki*; Gibelin, J.*; Inabe, Naoto*; et al.

Physical Review Letters, 103(26), p.262501_1 - 262501_4, 2009/12

 Times Cited Count:198 Percentile:97.53(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Magnetic property and pressure effect of a single crystal CeRhGe

Ueda, Taiki*; Honda, Daisuke*; Shiromoto, Tomoyuki*; Metoki, Naoto; Honda, Fuminori*; Kaneko, Koji; Haga, Yoshinori; Matsuda, Tatsuma; Takeuchi, Tetsuya*; Thamizhavel, A.*; et al.

Journal of the Physical Society of Japan, 74(10), p.2836 - 2842, 2005/10

 Times Cited Count:15 Percentile:60.97(Physics, Multidisciplinary)

Journal Articles

Diamond radiation detector made of an nultrahigh-purity type IIa diamond crystal grown by high-pressure and high-temperature synthesis

Tanaka, Teruya; Kaneko, Junichi; Takeuchi, Daisuke*; Sumiya, Hitoshi*; Katagiri, Masaki; Nishitani, Takeo; Takeuchi, Hiroshi; Iida, Toshiyuki*; Okushi, Hideyo*

Review of Scientific Instruments, 72(2), p.1406 - 1410, 2001/02

 Times Cited Count:8 Percentile:46.78(Instruments & Instrumentation)

no abstracts in English

Oral presentation

Development of divertor IR thermography for ITER

Sugie, Tatsuo; Takeuchi, Masaki; Ishikawa, Masao; Shimada, Takahiko; Katsunuma, Atsushi*; Kitazawa, Daisuke*; Omori, Keisuke*; Itami, Kiyoshi

no journal, , 

no abstracts in English

Oral presentation

Basic research programs of vitrification technology for waste volume reduction, 85; Adsorption/elution performance of TEHDGA adsorbents for MA(III) recovery; Hot experiment

Sato, Daisuke; Watanabe, So; Arai, Yoichi; Nakamura, Masahiro; Arai, Tsuyoshi*; Shibata, Atsuhiro; Takeuchi, Masayuki

no journal, , 

no abstracts in English

Oral presentation

Basic research programs of vitrification technology for waste volume reduction, 95; Adsorption/elution performance of HONTA adsorbents for MA(III) recovery; Hot experiment

Sato, Daisuke; Watanabe, So; Yano, Kimihiko; Kitawaki, Shinichi; Arai, Tsuyoshi*; Shibata, Atsuhiro; Takeuchi, Masayuki

no journal, , 

no abstracts in English

Oral presentation

Basic research programs of vitrification technology for waste volume reduction, 94; Design of a process-flow for an active experiment

Watanabe, So; Sato, Daisuke; Yano, Kimihiko; Sano, Yuichi; Takeuchi, Masayuki

no journal, , 

no abstracts in English

Oral presentation

Adsorption/elution performance of TEHDGA/SiO$$_{2}$$-P for Am/Cm Recovery from genuine HLLW

Sato, Daisuke; Watanabe, So; Arai, Yoichi; Nakamura, Masahiro; Arai, Tsuyoshi*; Sano, Yuichi; Shibata, Atsuhiro; Takeuchi, Masayuki

no journal, , 

Oral presentation

Investigation of the styrene-divinylbenzene coating carrier for extraction chromatography

Kaminaga, Daisuke*; Ago, Tomohiro*; Fukumoto, Hiroki*; Miyazaki, Yasunori; Sano, Yuichi; Takeuchi, Masayuki

no journal, , 

no abstracts in English

Oral presentation

Basic research programs of vitrification technology for waste volume reduction, 115; Study on the polymer coating for improving MA separation performance by extraction chromatography

Kaminaga, Daisuke*; Ago, Tomohiro*; Fukumoto, Hiroki*; Miyazaki, Yasunori; Sano, Yuichi; Takeuchi, Masayuki

no journal, , 

no abstracts in English

16 (Records 1-16 displayed on this page)
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