Studies of the generalized Breit interaction effect in autoionizing states

2012 Fiscal Year Final Research Report

• Project/Area Number: 21340111
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Atomic/Molecular/Quantum electronics
• Research Institution: The University of Electro-Communications
• Principal Investigator: NAKAMURA Nobuyuki 電気通信大学, レーザー新世代研究センター, 准教授 (50361837)
• Co-Investigator(Kenkyū-buntansha): YAMADA Chikashi 電気通信大学, 電気通信学部, 教授 (70037266) ; TONG Xiaomin 筑波大学, 数理物質科学研究科, 准教授 (80422210)
• Co-Investigator(Renkei-kenkyūsha): KATO Daiji 核融合科学研究所, 連携研究推進センター, 助教 (60370136)
• Project Period (FY): 2009 – 2012
• Keywords: 多価イオン / 自動電離状態 / ブライト相互作用 / 相対論効果

Research Abstract

Dielectronic recombination processes of few electron heavy highly charged ions have been studied with the Tokyo electron beam ion trap at the University of Electro-Communications. By combining two experiments, X-ray measurements and ion abundance measurements, the angular distribution of X-rays emitted in dielectronic recombination processes has been measured for lithiumlike ions. The dominant contribution of the Breit interaction effect on the angular distribution has been clearly demonstrated.

Research Products

• [Journal Article] Resonance strength for KLL dielectronic recombination of hydrogenlike krypton (2013)
  • Author(s): Zhimin Hu, Yueming Li, and Nobuyuki Nakamura
  • Journal Title: Phys. Rev. A Volume: 87 Pages: 052706
  • DOI: DOI:10.1103/PhysRevA.87.052706
  • Peer Reviewed
• [Journal Article] Comparison between leaky and pulsed modes of ion extraction from an electron beam ion trap (2013)
  • Author(s): Zhimin Hu, Yusuke Ishiguro, Hirofumi Watanabe, Shunsuke Ohtani, Nobuyuki Nakamura
  • Journal Title: Nucl. Instrum. Methods Volume: B298 Pages: 96-99
  • DOI: DOI:10.1016/j.nimb.2013.01.006
  • Peer Reviewed
• [Journal Article] Experimental Demonstration of the Breit Interaction which Dominates the Angular Distribution of X-ray Emission in Dielectronic Recombination (2012)
  • Author(s): Zhimin Hu; Xiaoying Han; Yueming Li; Kato, D.; Xiaomin Tong; Nakamura, N
  • Journal Title: Phys. Rev. Lett Volume: 108 Pages: 073002
  • DOI: DOI:10.1103/PhysRevLett.108.073002
  • Peer Reviewed
• [Journal Article] Structure and dynamics of highly charged heavy ions studied with the electron beam ion trap in Tokyo (2011)
  • Author(s): Nakamura, N.; Zhimin Hu; Watanabe, H.; Yueming Li; Kato, D.; Currell, F.; Xiao-Min Tong; Watanabe, T.; Ohtani, S.
  • Journal Title: Hyperfine Interaction Volume: 199 Pages: 123-30
  • DOI: DOI:10.1007/s10751-011-0307-7
  • Peer Reviewed
• [Journal Article] Activities at the Tokyo EBIT 2010 (2010)
  • Author(s): Nakamura N, Currell F J, Hu Z, Kato D, Komatsu A, Li Y, Murakami I, Ohashi H, Ohtani S, Sakaue H A, Sakurai M, Tona M, Tong X M, Watanabe H, Watanabe T, Yamada C, Yamamoto N and Yamazaki A
  • Journal Title: Journal of Instrumentation Volume: 5 Pages: C08007
  • DOI: DOI:10.1088/1748-0221/5/08/c08007
  • Peer Reviewed
• [Journal Article] Two-photon Observations of Dielectronic Recombination Processes
  • Author(s): Zhi-min Hu; Yue-ming Li; Yamazaki, A.; Nakamura, N
  • Journal Title: Phys. Scr Volume: 2011 Pages: 014047
  • DOI: DOI:10.1088/0031-8949/2011/t144/014047
  • Peer Reviewed
• [Journal Article] Ohtani S and Currell F J 2010 Dielectronic recombination in He-like, Li-like, and Be-like highly charged ions in the KLL and KLM manifolds Physical
  • Author(s): Kavanagh A P, Watanabe H, Li Y M, O'Rourke B E, Tobiyama H, Nakamura N, McMahon S, Yamada C
  • Journal Title: Review A81 Volume: 022712
  • DOI: DOI:10.1103/PhysRevA.81.022712
  • Peer Reviewed
• [Journal Article] 2009 Asymmetric profiles observed in the recombination of Bi79+: A benchmark for relativistic theories involving interference
  • Author(s): Nakamura N, Kavanagh A P, Watanabe H, Sakaue H A, Li Y M, Kato D, Currell F J, Tong X M, Watanabe T and Ohtani S
  • Journal Title: Physical Review Volume: 014503
  • DOI: doi:10.1103/PhysRevA.80.014503
  • Peer Reviewed
• [Journal Article] 2009 Green's function for multielectron ions and its application to radiative recombination involving dielectronic recombinations
  • Author(s): Tong X M, Nakamura N, Ohtani S, Watanabe T and Toshima N
  • Journal Title: Physical Review Volume: A80 Pages: 042502
  • DOI: DOI:10.1103/PhysRevA.80.042502
  • Peer Reviewed
• [Presentation] 硬X線用偏光計の開発 (2012)
  • Author(s): 石黒雄介, 大橋隼人, 中村信行
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 20120900
• [Presentation] ANGULAR DISTRIBUTION OF X-RAY EMISSION IN DIELECTRONIC RECOMBINATION (2012)
  • Author(s): Z. Hu, X. Han, Y. Li, D. Kato, X. Tong, H. Watanane and N. Nakamura
  • Organizer: 16th International Conferences on the Physics of Highly Charged Ions (HCI2012)
  • Place of Presentation: Heidelberg, Germany
  • Year and Date: 20120900
• [Presentation] Dielectronic recombination of highly charged heavy ions studied with the Tokyo electron beam ion trap (2012)
  • Author(s): NAKAMURA Nobuyuki
  • Organizer: 4th China-Japan Joint Seminar on Atomic and Molecular Processes in Plasma
  • Place of Presentation: Lanzhou, China
  • Year and Date: 20120700
• [Presentation] スピン偏極検出器較正のためのスピン偏極電子線源の開発 (2012)
  • Author(s): 大澤央, 山田千樫, 中村信行
  • Organizer: 原子衝突研究協会年会
  • Place of Presentation: 電気通信大学
  • Year and Date: 20120700
• [Presentation] 硬X線用偏光計の開発 (2012)
  • Author(s): 石黒雄介, 大橋隼人, 中村信行
  • Organizer: 原子衝突研究協会年会
  • Place of Presentation: 電気通信大学
  • Year and Date: 20120700
• [Presentation] Angular Distribution of X-ray Emission in Dielectronic Recombination (2012)
  • Author(s): Zhimin Hu,Xiaoying Han,Yueming Li,Daiji Kato, Xiaomin Tong ,and Nobuyuki Nakamura
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大
  • Year and Date: 20120300
• [Presentation] 重元素多価イオンの二電子性再結合:偏極度におけるブライト相互作用の検証に向けて (2011)
  • Author(s): 胡智民、 中村信行
  • Organizer: 原子衝突研究協会年会
  • Place of Presentation: 新潟大学
  • Year and Date: 20110800
• [Presentation] Dielectronic recombination of hydrogen-like krypton, XXVII International Conference on Photonic (2011)
  • Author(s): Zhimin Hu , Akira Yamazaki , Yueming Li , Nobuyuki Nakamura
  • Organizer: Electronic and Atomic Collisions
  • Place of Presentation: Belfast UK
  • Year and Date: 20110700
• [Presentation] KLL dielectronic recombination resonance strengths in He- to O-like gold ions, XXVII International Conference on Photonic, Electronic and Atomic Collisions, XXVII International Conference on Photonic (2011)
  • Author(s): Zhimin Hu , Michiharu Ureshino , Xiaoying Han , Yueming Li , Nobuyuki Nakamura
  • Organizer: Electronic and Atomic Collisions
  • Place of Presentation: Belfast UK
  • Year and Date: 20110700
• [Presentation] Two-photon observations of dielectronic recombination processes (2010)
  • Author(s): 胡智民, 李月明, 山崎詔, 中村信行
  • Organizer: 日本物理学会
  • Place of Presentation: 大阪府立大
  • Year and Date: 20100900
• [Presentation] TWO-PHOTON OBSERVATIONS OF DIELECTRONIC RECOMBINATION PROCESSES (2010)
  • Author(s): HU Zhi-min, LI Yue-ming, YAMAZAKI Akira, NAKAMURA Nobuyuki
  • Organizer: 15th International Conference on the Physics of Highly Charged Ions
  • Place of Presentation: 上海 中国
  • Year and Date: 20100800
• [Presentation] Structure and dynamics of highly charged heavy ions studied with the electron beam ion trap in Tokyo (2010)
  • Author(s): Nobuyuki NAKAMURA
  • Organizer: Fifth Conference on Trapped Charged Particle
  • Place of Presentation: Saariselka Finland
  • Year and Date: 20100400
• [Presentation] Progress at the Tokyo EBIT (2010)
  • Author(s): NAKAMURA Nobuyuki
  • Organizer: International Symposium on Electron Beam Ion Sources and Traps (EBIST2010)
  • Place of Presentation: Stockholm, Sweden
  • Year and Date: 20100400
• [Presentation] Dielectronic recombination of hydrogen-like krypton (2010)
  • Author(s): 胡智民, 李月明, 中村信行
  • Organizer: 日本物理学会
  • Place of Presentation: 岡山大学
  • Year and Date: 20100300
• [Presentation] Interference between radiative and dielectronic recombinations of highly charged ions observed through the ion abundance in an electron beam ion trap (2009)
  • Author(s): Nobuyuki Nakamura, Anthony P Kavanagh, Hirofumi Watanabe, Hiroyuki A Sakaue, Yueming Li, Daiji Kato, Fred J Currell, Xiao-Ming Tong, Tsutomu Watanabe, and Shunsuke Ohtani
  • Organizer: International Conference on Photonic Electronic and Atomic Collisions (ICPEAC2009)
  • Place of Presentation: Kalamazoo USA
  • Year and Date: 20090700
• [Presentation] Recent activities at the Tokyo-EBIT 2009
  • Author(s): Nobuyuki Nakamura, Fred J. Currell, Daiji Kato, Yueming Li, Izumi Murakami, Shunsuke Ohtani, Hiroyuki A Sakaue, Masahide Tona, Xiao-Ming Tong, Hirofumi Watanabe, Tetsuya Watanabe, Tsutomu Watanabe, Chikashi Yamada, and Norimasa Yamamoto
  • Organizer: 3rd workshop on Physics at EBITS and Advanced Research Light Sources (PEARL2009)
  • Place of Presentation: Dublin, Ireland
• [Remarks]
  • URL: http://yebisu.ils.uec.ac.jp/nakamura/