1994 Fiscal Year Annual Research Report

多価イオンの分光学的研究

Research Project

Project/Area Number	05238102
Research Institution	The University of Electro-Communications
Principal Investigator	大谷俊介電気通信大学, レーザー極限技術研究センター, 教授 (60023735)
Co-Investigator(Kenkyū-buntansha)	片山一郎東京大学, 原子核研究所, 教授 (30028237) 鶴淵誠二東京農工大学, 工学部, 教授 (60028248) 香川貴司奈良女子大学, 理学部, 教授 (30031686)
Keywords	多価イオン / 分光 / 原子構造 / 相対論効果 / QED
Research Abstract	電子ビーム形多価イオン源(EBIS)本体の設計・製作を完了した。昨年度に引き続き、電子ビーム発生部から、多価イオン生成・蓄積部を経て、コレクターに至るまでの電子ビームの軌道を、多くの電磁場配位の条件下で計算機シミュレーションを行い最適化を計り、それに基づき電極形状を決定した。製作された超電導磁場コイルの励磁を行い、70回以上にも及ぶクエンチを経ながらコイルに流す電流を増加させ、目標の4.5Tの磁場強度を達成した。液体へリウムのクライオ・スタット部の過冷却を行えるように、実機の模擬装置を製作し、テストを繰り返し最終的に4.2°Kから2.4°Kまでの過冷却に成功した。 EBIS全体の組み立てを行い、冷却時での中心軸の整合性をとる機構を設けて±0.1mmの精度で軸合わせが行えるようにした。多価イオンの分光計測を行うためのX線分光器の設計を行った。また、検出器をして使用する予定のガス比例計数管の開発を行った。測定データとの比較ができる原子構造計算コードを整備した。

Research Products
(17 results)

All Other

All Publications (17 results)

[Publications] Konrad Koc: "Relativistic Configuration Interaction Calculations for Open-shell Atomic Systems" Chem.Phys.Lett.231. 407-413 (1994)
[Publications] S.Tsurubuchi: "Excitation of the 3s3p^6 State of Ar^+ by Electron Impact" Journal of the Physical Society of Japan. 63. 3996-3999 (1994)
[Publications] I.Katayama: "INS 160cm FM/FF Cyclotron History(in Japanese)" Butsuri. 49. 200-207 (1994)
[Publications] T.Tanabe: "Origin of the Low Energy Component and Isotope Effect on Dissociative Recombination of HeH^+ and HeD^+" Phys.Rev.49. R1531-R1534 (1994)
[Publications] H.Ogawa: "Electron Loss Cross Section of 10.6MeV/U Light Ions" Nucl.Instr.Meth.B88. 350-354 (1994)
[Publications] Y,Susuki: "Stopping Power of Carbon for 9.6MeV/U H_2^+ Ions" Phys.Rev.50. 3533-3536 (1994)
[Publications] N.Saito: "Mobilities of He^+,Ne^+,Ar^+ and Kr^+ in He Gas at 4.35K" J.Chem.Phys.100. 5726-5734 (1994)
[Publications] J.Sanderson: "Ion Mobility Measurement for O_2^+ in Helium Gas at 4.35K" J.Phys.B.27. L433-L437 (1994)
[Publications] M.Sataka: "Projectile Charge State Dependence of Binary Electron Production for 1MeV/U Au Impact on He" J.Phys.B.27. L171-L176 (1994)
[Publications] H.Katori: "Laser-induced Ionizing Collisions of Ultracold Krypton Gas in the ls_5 Metastable State" Phys.Rev.Let.73. 2555-2558 (1994)
[Publications] S.Kravis: "An EBISfor Use with Synchrotron Radiation." Rev.Sci.Instrum.65. 1066-1068 (1994)
[Publications] M.Oura: "Experimental Setups for Photoionization of Multiply Charged Ions by Synchrotron Radiation" Nucl.Instrum.and Methods.B.86. 190-193 (1994)
[Publications] M.Suzuki: "A Propotional Scintillation X-ray Imaging.Chamber and its Performance" Nucl.Instrum.and Methods.A.348. 280-287 (1994)
[Publications] M.Terasawa: "Influence of High Energy Heavy Ion Irradiation on Magnetic Flux Pinning in La_<1.85>Sr_<0.15>CuO_4" Physica. 235-240. 2805-2806 (1994)
[Publications] T.Y.Suzuki: "Measurements of Cross Sections and Oscillator Strength for Ne by Electron-energy-loss Spectroscopy" Phys.Rev.A. 49. 4578-4584 (1994)
[Publications] N.Nakamura: "Eiected-electron Spectra from the Triplet States of O^<4+>(ls^23131')Produced by O^<6+>+O_2 Collisions" J.Phys.B.27. L785-L793 (1994)
[Publications] F.J.Currell: "The Observation of Post-collision Interaction in States of N_2O Excited by Electron Impact" J.Phys.B.27. 583-591 (1994)

1994 Fiscal Year Annual Research Report

多価イオンの分光学的研究

Principal Investigator

大谷 俊介 電気通信大学, レーザー極限技術研究センター, 教授 (60023735)

Research Products

[Publications] Konrad Koc: "Relativistic Configuration Interaction Calculations for Open-shell Atomic Systems" Chem.Phys.Lett.231. 407-413 (1994)

[Publications] S.Tsurubuchi: "Excitation of the 3s3p^6 State of Ar^+ by Electron Impact" Journal of the Physical Society of Japan. 63. 3996-3999 (1994)

[Publications] I.Katayama: "INS 160cm FM/FF Cyclotron History(in Japanese)" Butsuri. 49. 200-207 (1994)

[Publications] T.Tanabe: "Origin of the Low Energy Component and Isotope Effect on Dissociative Recombination of HeH^+ and HeD^+" Phys.Rev.49. R1531-R1534 (1994)

[Publications] H.Ogawa: "Electron Loss Cross Section of 10.6MeV/U Light Ions" Nucl.Instr.Meth.B88. 350-354 (1994)

[Publications] Y,Susuki: "Stopping Power of Carbon for 9.6MeV/U H_2^+ Ions" Phys.Rev.50. 3533-3536 (1994)

[Publications] N.Saito: "Mobilities of He^+,Ne^+,Ar^+ and Kr^+ in He Gas at 4.35K" J.Chem.Phys.100. 5726-5734 (1994)

[Publications] J.Sanderson: "Ion Mobility Measurement for O_2^+ in Helium Gas at 4.35K" J.Phys.B.27. L433-L437 (1994)

[Publications] M.Sataka: "Projectile Charge State Dependence of Binary Electron Production for 1MeV/U Au Impact on He" J.Phys.B.27. L171-L176 (1994)

[Publications] H.Katori: "Laser-induced Ionizing Collisions of Ultracold Krypton Gas in the ls_5 Metastable State" Phys.Rev.Let.73. 2555-2558 (1994)

[Publications] S.Kravis: "An EBISfor Use with Synchrotron Radiation." Rev.Sci.Instrum.65. 1066-1068 (1994)

[Publications] M.Oura: "Experimental Setups for Photoionization of Multiply Charged Ions by Synchrotron Radiation" Nucl.Instrum.and Methods.B.86. 190-193 (1994)

[Publications] M.Suzuki: "A Propotional Scintillation X-ray Imaging.Chamber and its Performance" Nucl.Instrum.and Methods.A.348. 280-287 (1994)

[Publications] M.Terasawa: "Influence of High Energy Heavy Ion Irradiation on Magnetic Flux Pinning in La_<1.85>Sr_<0.15>CuO_4" Physica. 235-240. 2805-2806 (1994)

[Publications] T.Y.Suzuki: "Measurements of Cross Sections and Oscillator Strength for Ne by Electron-energy-loss Spectroscopy" Phys.Rev.A. 49. 4578-4584 (1994)

[Publications] N.Nakamura: "Eiected-electron Spectra from the Triplet States of O^<4+>(ls^23131')Produced by O^<6+>+O_2 Collisions" J.Phys.B.27. L785-L793 (1994)

[Publications] F.J.Currell: "The Observation of Post-collision Interaction in States of N_2O Excited by Electron Impact" J.Phys.B.27. 583-591 (1994)

大谷俊介電気通信大学, レーザー極限技術研究センター, 教授 (60023735)