理研イオンガイド型オンライン同位体分離器からのイオンビームの速度分布

• Material Type: 博士論文
• Title: 理研イオンガイド型オンライン同位体分離器からのイオンビームの速度分布
• Author/Editor: 小泉, 光生
• Author Heading: 小泉, 光生
• Alternative Title: Velocity distribution of ion beams from the RIKEN Ion-Guide Isotope Separator On-Line
• Degree grantor/type: 広島大学
• Date Granted: 1992-03-06
• Dissertation Number: 乙第2244号
• Degree Type: 博士(理学); Physical Science
• Text Language Code: eng
• Target Audience: 一般
• DOI: 10.11501/3061390
• Format (IMT): application/pdf
• Source: fulltext; http://ir.lib.hiroshima-u.ac.jp/31812/files/33457
• Access Restrictions: インターネット公開
• Rights (production): Copyright(c) by Author
• References: 1) Velocity distribution of ion beams from the RIKEN IGISOL(理研IGISOLからのイオンビームの速度分布) M. Koizumi, Y. Yoshida, K. Morita, M. Takami, T.T. Inamura, M. Azuma, H. Katsuragawa, M. Nakaoka, I. Nakamura, T. Ishizuka, T. murayama, A. Iivonen, K. Valli, K. Shimomura, S. Matsuki, and I. Sugai, to be published in Nucl. Instr. and Meth. (Dec. 1991).; 2) Collinear fast atomic-beam laser spectroscopy at RIKEN GARIS/IGISOL (理研GARIS/IGISOLにおける共線高速原子線レーザー分光) M. Koizurni, M. Azuma, T. Horiguchi, T.T. Inamura, T. Ishizuka, A. Iivonen, H. Katsuragawa, S. Matsuki, K. Morita, T. Murayama, I. Nakamura, M. Nakaoka, K. Shimomura, T. Shinozuka, I. Sugai, Y. Tagishi, M. Takami, K. Valli, M. Wakasugi, and A. Yoshida, presented at the Int. symposium on lasers in nuclear physics (Wako, 1991), and to be published in Hyp. Int.
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 広島大学 : 広島大学学術情報リポジトリ

• Summary, etc.: The nuclei close to the N = 104 show an interesting feature. Extremely large shape staggering in the isotope and isomer shifts was observed for Hg and...

Table of Contents

Contents / p1
1 Introduction / p1
2 Principle of measurement / p5
　2.1 Doppler shift and Doppler broadening / p5
　2.2 Mass resolving power (MRP) / p8
3 Experimental / p11
　3.1 Location of IGISOL / p11
　3.2 SQUEEZER / p11
　3.3 Discharge ion source / p14
　3.4 Laser system / p18
　3.5 Experimental setup for velocity measurement / p18
　3.6 Production of radioactive isotope of a refractory element: ¹⁶⁹Hf / p22
4 Results and discussion / p24
　4.1 LIF spectrum of Ar¹⁺ / p24
　4.2 Velocity spread and beam divergence / p24
　4.3 Skimmer-voltage dependence of the velocity spread / p27
　4.4 The effect of SQUEEZER / p28
　4.5 He-gas pressure dependence of the velocity spread / p29
　4.6 Comparison with the mass resolving power / p30
　4.7 Velocity distribution of a collimated beam / p35
　4.8 Mass dependence of the MRP / p35
　4.9 Yield of radioactive isotopes from the GARIS/IGISOL / p37
　4.10 Feasibility of on-line collinear laser spectroscopy / p38
5 Conclusion / p41
Appendix / p43
　A Collinear laser spectroscopy setup for on-line experiment / p43
　B High-resolution off-line laser spectroscopy setup for refractory elements / p48
Acknowledgment / p52
References / p53