Production of an isotope with element 110 in the fusion reaction between silicon-30 and curium-248

• Project/Area Number: 22540316
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: NISHIO Katsuhisa 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (70343928)
• Co-Investigator(Renkei-kenkyūsha): MITSUOKA Shin-ichi 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (40354881) ; NISHINAKA Ichiro 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究副主幹 (70354884)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 超重元素 / 重イオン融合反応 / 核分裂 / 核融合 / アクチノイド原子核 / 超重原子核 / 融合反応 / キュリウム248 / シリコン30

Research Abstract

Fusion-evaporation reaction using actinide target nuclei is extensively used to produce super-heavy nuclei (SHN). The fusion reaction itself, however, has not been fully understood, which makes it difficult to predict the production cross sections of SHN. We proposed a method to determine the fusion probability by measuring heavy-ion induced fission. Effect of nuclear deformation on fusion was investigated, and it was shown that SHN can be produced at sub-barrier energies.

Research Products

• [Journal Article] Beta-delayed fission of 186,188Bi isotopes (2013)
  • Author(s): J.F. Lane et al.,
  • Journal Title: Physical Review C Volume: 87 Issue: 1
  • DOI: 10.1103/physrevc.87.014318
  • Peer Reviewed
• [Journal Article] Beta-delayed fission of 192,194At isotopes (2013)
  • Author(s): A.N. Andreyev et al.,
  • Journal Title: Physical Review C Volume: 87 Issue: 1
  • DOI: 10.1103/physrevc.87.014317
  • Peer Reviewed
• [Journal Article] Fusion probabilities in the reactions ^<40,48>Ca + ^<238>U at energies around the Coulomb barrier (2012)
  • Author(s): K.Nishio, S. Mitsuoka, I. Nishinaka, H. Makii, Y. Wakabayashi, H. Ikezoe, K. Hirose, T. Ohtsuki, Y. Aritomo, and S. Hofmann
  • Journal Title: Physical Review C Volume: 86 Issue: 3
  • DOI: 10.1103/physrevc.86.034608
  • Peer Reviewed
• [Journal Article] Evidence for hindrance in fusion between sulfur and lead nuclei (2012)
  • Author(s): J. Khuyagbaatar, K. Nishio, S. Hofmann, D. Ackermann, M. Block, S. Heinz, F. P. Hesberger, K. Hirose, H. Ikezoe, B. Kinlder, B. Lommel, H. Makii, S. Mitsuoka, I. Nishinaka, T. Ohtsuki, Y. Wakabayashi, and S. Yan
  • Journal Title: Physical Review C Volume: 86 Issue: 6
  • DOI: 10.1103/physrevc.86.064602
  • Peer Reviewed
• [Journal Article] Dynamical approach to heavy-ion induced fission using actinide target nuclei at energies around the Coulomb barrier (2012)
  • Author(s): Y. Aritomo, K. Hagino, K. Nishio, and S. Chiba
  • Journal Title: Phys. Rev. C Volume: 85 Issue: 4 Pages: 1-15
  • DOI: 10.1103/physrevc.85.044614
  • Peer Reviewed
• [Journal Article] Evidence for quasifission in the sub-barrier reaction of ^<30>Si + ^<238>U (2012)
  • Author(s): K.Nishio, H.Ikezoe, I.Nishinaka, S. Mitsuoka, K.Hirose, T. Ohtsuki, Y. Watanabe, Y. Aritomo, and S. Hofmann
  • Journal Title: Physical Review C Volume: 82 Issue: 4
  • DOI: 10.1103/physrevc.82.044604
  • Peer Reviewed
• [Journal Article] Fission-barrier heights of neutron-deficient mercury nuclei (2012)
  • Author(s): M. Veselsky et al.,
  • Journal Title: Physical Review C Volume: 86 Issue: 2
  • DOI: 10.1103/physrevc.86.024308
  • Peer Reviewed
• [Journal Article] The reaction ^<48>Ca+^<248>Cm ->^<296>116* studied at the GSI-SHIP (2012)
  • Author(s): S.Hofmann,‥, K.Nishio, 他37名
  • Journal Title: European Physics Journal A Volume: 48 Issue: 5 Pages: 1-23
  • DOI: 10.1140/epja/i2012-12062-1
  • Peer Reviewed
• [Journal Article] Alpha-gamma decay studies of 253No and its daughter products 253Md, 249Fm (2012)
  • Author(s): F. Hessberger et al.,
  • Journal Title: European Physics Journal A Volume: 48 Issue: 5
  • DOI: 10.1140/epja/i2012-12075-8
  • Peer Reviewed
• [Journal Article] Production of 265Sg in the ^<248>Cm(^<22>Ne,5n)^<265>Sg reaction and decay properties of two isomeric states in ^<265>Sg (2012)
  • Author(s): H.Haba, et al
  • Journal Title: Physical Review C Volume: 85 Issue: 2 Pages: 34602-34602
  • DOI: 10.1103/physrevc.85.024611
  • Peer Reviewed
• [Journal Article] Dynamical model of surrogate reactions (2011)
  • Author(s): Y.Aritomo, S.Chiba, K.Nishio
  • Journal Title: Physical Review C Volume: 84 Issue: 2 Pages: 1-10
  • DOI: 10.1103/physrevc.84.024602
  • Peer Reviewed
• [Journal Article] Isomeric states in ^<253>No and ^<253>Fm (2011)
  • Author(s): S.Antalic,‥, K.Nishio, 他16名
  • Journal Title: European Physics Journal A Volume: 47 Issue: 5 Pages: 1-12
  • DOI: 10.1140/epja/i2011-11062-y
  • Peer Reviewed
• [Journal Article] Nuclear orientation in the reaction^<34> S+^<238> U and synthesis of the new isotope^<268> Hs (2010)
  • Author(s): K. Nishio, S. Hofmann, F. P. Hessberger, D. Ackermann, S. Antalic, Y. Aritomo, V. F. Comas, Ch. E. Dullmann, A. Gorshkov, R. Graeger, K. Hagino, S. Heinz, J. A. Heredia, K. Hirose, H. Ikezoe, J. Khuyagbaatar, B. Kindler, I. Kojouharov, B. Lommel, R. Mann
  • Journal Title: Phys. Rev. C Volume: 82 Issue: 2
  • DOI: 10.1103/physrevc.82.024611
  • Peer Reviewed
• [Journal Article] Nuclear orientation in the reaction ^<34>S+^<238>U and synthesis of the new isotope ^<268>Hs (2010)
  • Author(s): K.Nishio, et al.
  • Journal Title: Physical Review C Volume: 82
  • Peer Reviewed
• [Journal Article] Evidence for quasifission in the sub-barrier reaction of ^<30>Si+^<238>U (2010)
  • Author(s): K.Nishio, et al.
  • Journal Title: Physical Review C Volume: 82
  • Peer Reviewed
• [Journal Article] Experimental Study of the ^<238>U(^<36>S, 3-5n)^<269-271>Hs reaction leading to the observation of ^<270>Hs (2010)
  • Author(s): R.Graeger, K.Nishio, et al.
  • Journal Title: Physical Review C Volume: 81
  • Peer Reviewed
• [Journal Article] The new isotope ^<236>Cm and new data on ^<233>Cm and ^<237,238,240>Cf (2010)
  • Author(s): J.Khuyagbaatar, K.Nishio, et al.
  • Journal Title: European Physics Journal A Volume: 46 Pages: 59-67
  • Peer Reviewed
• [Journal Article] Effects of nuclear orientation on fusion and fission in the reaction using ^<238>U target nucleus (2010)
  • Author(s): K.Nishio, et al.
  • Journal Title: EPJ Web of Conferences 2 Volume: 2
• [Journal Article] Effects of nuclear orientation on fusion and fission process for reactions using ^<238>U target nucleus (2010)
  • Author(s): K.Nishio, et al.
  • Journal Title: AIP Conference Proceedings Volume: 1238 Pages: 307-312
• [Journal Article] Effects of nuclear orientation on fusion and fission in the reaction using ^<238>U target nucleus (2010)
  • Author(s): K.Nishio, et al.
  • Journal Title: AIP Conference Proceedings Volume: 1224 Pages: 301-310
• [Journal Article] Study for fusion-fission and quasifission in reactions using ^<238>U target nucleus (2010)
  • Author(s): K.Nishio, et al.
  • Journal Title: J.Phys.Conf.Ser. Volume: 282
• [Presentation] Fission research program at JAEA (2013)
  • Author(s): K. Nishio
  • Organizer: The 10th ASRC International Workshop on Nuclear Fission and Decay of Exotic Nuclei
  • Place of Presentation: Tokai, Japan
• [Presentation] Fission research program at JAEA (2013)
  • Author(s): K. Nishio
  • Organizer: The 10th ASRC International Workshop on “Nuclear Fission and Decay of Exotic Nuclei”
  • Place of Presentation: Tokai, Japan
  • Invited
• [Presentation] Study for heavy-ion induced fission for heavy element synthesis (2013)
  • Author(s): K. Nishio
  • Organizer: International Conference on Nuclear Data for Science and Technology, ND2013
  • Place of Presentation: New York, USA
• [Presentation] In-beam Fission Study at JAEA (2013)
  • Author(s): K. Nishio
  • Organizer: Heavy Ion Accelerator Symposium, HIAS2013
  • Place of Presentation: Canberra, Australia
  • Invited
• [Presentation] In-beam fission study for heavy element synthesis (2013)
  • Author(s): K. Nishio
  • Organizer: Fifth International Workshop on Nuclear Fssion and Fission-Product Spectroscopy (FISSION2013)
  • Place of Presentation: CAEN, France
  • Invited
• [Presentation] Study of heavy-ion induced fission for heavy-element synthesis (2013)
  • Author(s): K. Nishio
  • Organizer: International Nuclear Physics Conference, 2013 (INPC2013)
  • Place of Presentation: Firenze, Italy
• [Presentation] Fusion-fission study at JAEA for heavy-element synthesis (2012)
  • Author(s): K. Nishio
  • Organizer: Dynamics and the Emission of Prompt Neutrons and Gamma Rays (Theory-2)
  • Place of Presentation: Biarritz, France
• [Presentation] In-beam fission study at JAEA for heavy-element synthesis (2012)
  • Author(s): K. Nishio
  • Organizer: International Conference on Recent Trends in Nuclear Physics 2012
  • Place of Presentation: Chandigarh, India
• [Presentation] Fusion-fission study at JAEA for heavy element synthesis (2012)
  • Author(s): K. Nishio
  • Organizer: VIII Tours Symposium on Nuclear Physics and Astrophysics
  • Place of Presentation: Lenzkirch-Saig, Germany
• [Presentation] Fusion and fission study at JAEA (2012)
  • Author(s): K. Nishio
  • Organizer: Seminar at Department of Physics, University of York
  • Place of Presentation: York, UK
  • Invited
• [Presentation] Experimental study for heavy-ion induced fission (2012)
  • Author(s): K. Nishio
  • Organizer: The 4th RIBF workshop on Fission of Heavy Nuclei
  • Place of Presentation: Niigata, Japan
  • Invited
• [Presentation] Fusion-fission study at JAEA for heavy-element synthesis (2012)
  • Author(s): K. Nishio
  • Organizer: Scientific workshop on Nuclear Fission Dynamics and the Emission of Prompt Neutrons and Gamma Rays (Theory-2)
  • Place of Presentation: Biarritz, France
  • Invited
• [Presentation] 陽子過剰原子核の核分裂 (2012)
  • Author(s): 西尾勝久
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 京都産業大学、京都
• [Presentation] Fission research activity at JAEA (2012)
  • Author(s): K.Nishio
  • Organizer: 5^<th> ASRC International Symposium ; Perspectives in Nuclear Fission
  • Place of Presentation: Tokai, Japan(招待講演)
• [Presentation] Nuclear orientation in fusion and synthesis of heavy element at sub-barrier energy (2011)
  • Author(s): K. Nishio
  • Organizer: 7th.International Conference on Dynamic Aspects of Nuclear Fission
  • Place of Presentation: Smolenice, Slovakia
• [Presentation] Nuclear orientation in fusion and synthesis of heavy element at sub-barrier energy (2011)
  • Author(s): K.Nishio
  • Organizer: 7th.International Conference on Dynamic Aspects of Nuclear Fission
  • Place of Presentation: Smolenice, Slovakia(招待講演)
• [Presentation] Study for fission properties and evaporation residue measurement in the heavy-ion induced reactions using ^<238>U target nucleus (2011)
  • Author(s): K.Nishio
  • Organizer: FUSION11
  • Place of Presentation: Saint-Malo, France(招待講演)
• [Presentation] Nuclear orientation in fusion and synthesis of heavy element at sub-barriere nergy (2011)
  • Author(s): K.Nishio
  • Organizer: International conference on the chemistry and physics of the transactinide elements (TAN11)
  • Place of Presentation: Sochi, Russia(招待講演)
• [Presentation] Fission dynamics in heavy ion collisions on ^<238>U (2010)
  • Author(s): K. Nishio
  • Organizer: Scientific Workshop on Nuclear Fission and Dynamics and the Emission of Prompt Neutrons and Gamma Rays
  • Place of Presentation: Sinaia, Romania
• [Presentation] Effects of nuclear orientation on fusion and fission process for reactions using ^<238>U target nucleus (2010)
  • Author(s): K. Nishio
  • Organizer: 24^<th> International Nuclear Physics Conference 2010
  • Place of Presentation: Vancouver, Canada
• [Presentation] アクチノイド標的と重イオンの反応における融合・核分裂過程 (2010)
  • Author(s): 西尾勝久
  • Organizer: 京都大学基研研究会「大振幅集団運動の微視的理論」
  • Place of Presentation: 京都大学
• [Remarks] 日本原子力研究開発機構・先端基礎研究センター
  • URL: http://asrc.jaea.go.jp/asr_eng/index.html
• [Remarks] 日本原子力研究開発機構・先端基礎研究センター・重原子核反応フロンティア研究Gr
  • URL: http://asrc.jaea.go.jp/soshiki/gr/chiba_gr/index_e.html
• [Remarks] 第１０回ASRC国際会議 "核分裂とエキゾチック原子核の崩壊 "
  • URL: http://asrc.jaea.go.jp/soshiki/gr/chiba_gr/workshop2/index2.html
• [Remarks] 第５回ＡＳＲＣ国際会議”核分裂研究の展望”
  • URL: http://asrc.jaea.go.jp/fission_workshop/index.html