Metastable lithium ion beam research with synchrotron radiation

• Project/Area Number: 23600009
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Quantum beam science
• Research Institution: Sophia University
• Principal Investigator: AZUMA Yoshiro 上智大学, 理工学部, 教授 (50270393)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 原子衝突 / 放射光 / 電子相関 / 光イオン化 / 光電子分光 / 衝突後効果 / 光電子再捕獲 / ペニングイオン化 / 原子分子物理 / ぺニングイオン化 / 量子ビーム

Outline of Final Research Achievements

Experiments were conducted with the aim to produce a beam of metastable lithium ions by photoionizaingionize gasphase lithium atoms with synchrotron radiation. The metastable lithium ion beam was then crossed with a target atom beam　to observe　Penning ionization. Individual Penning electrons were observed, utilizing a modified photoion time of flight spectrometer. Subsequently, an attempt was made at the advanced light source to energy analyze the Penning electrons , but the results fell short of conclusive determination. On the other hand, very interesting results were obtained on the post collision interaction and photoelectron recapture phenomena.

Research Products

• [Journal Article] PCI effects and the gradual formation of Rydberg series due to photoelectron recapture, in the Auger satellite lines upon Xe 4d 5/2 photoionization (2015)
  • Author(s): Satoshi Kosugi, Masatomi Iizawa, Yu Kawarai, Yosuke Kuriyama, A L David Kilcoyne, Fumihiro Koike, Nobuhiko Kuze, Daniel S Slaughter, Yoshiro Azuma
  • Journal Title: Journal of Physics B: Atomic, Molecular and Optical Physics Volume: 48 Issue: 11 Pages: 1150031-1150034
  • DOI: 10.1088/0953-4075/48/11/115003
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Dynamics of the Dissociating Uracil Anion Following Resonant Electron Attachment (2014)
  • Author(s): Y. Kawarai, Th. Weber, Y. Azuma, C. Winstead, V. McKoy, A. Belkacem, D. S. Slaughter
  • Journal Title: Journal of Physical Chemistry Letters Volume: 5 Issue: 21 Pages: 3854-3858
  • DOI: 10.1021/jz501907d
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] “Photoion-yield study of the 3p–3d giant resonance excitation region of isolated Cr, Mn and Fe atoms” (2012)
  • Author(s): T Osawa, K Kawajiri, N Suzuki, T Nagata, Y Azuma and F Koike
  • Journal Title: J. Phys. B: At. Mol. Opt. Phys. 45 225204 (2012) Volume: 45
  • Peer Reviewed
• [Journal Article] “Effects of target polarization and postcollision interaction on the electron-impact single ionization of Ne(2p), Ar(3p), and Na(3s) atoms” (2012)
  • Author(s): G. Purohit, Prithvi Singh, Vinod Patidar, Y. Azuma, and K. K. Sud
  • Journal Title: Phys. Rev. A 85, 022714 (2012) Volume: 85
  • Peer Reviewed
• [Presentation] VUV lifetime resolved fluorescence spectroscopy (2011)
  • Author(s): Yoshiro AZUMA
  • Organizer: 3rd International Conference on ?Current Developments in Atomic, Molecular,Optical & Nano Physics(CDAMOP-2011)(招待講演)
  • Place of Presentation: Delhi, India