Measurements of Absolute Cross Sections for Electron-Impact Ionization of Doubly Charged Rare Gas Ions:Ne^<2+>,Ar^<2+>,Kr^<2+>,andXe^<2+>
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概要
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The technique of crossed electron-ion beams has been employed to measure the ab-solute cross sections for single ionization of Ne", Ar", Kr" and Xe" Tons at eleciron energies ranging from below threshold to 1000 eV. Detailed descriptions of theexperimental apparatus and procedures to determine the absolute cross sections arepresented, and are discussed check points for reliability and consistency as well aspossible contributions of metastable contents in the ion beam. The total systematic er-ror in the cross sections is estimated to be within f 9%. A distinct discrepancy is ob-served for Ne" between the measured cross section curve and results of semiem-pirical calculation using the Lotz formula. The cross sections for Ar", Kr" andXe" reveal significant contributions from excitation-autoionization processes in addilion to direct ionization, especially in the near threshold energy regions.
- 社団法人日本物理学会の論文
- 1990-03-15
著者
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YAMADA Ichihiro
National Insitute for Fusion Science
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山田 勲
Department Of Physics Faculty Of Science Chiba University
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Hirayama Takato
National Institute For Fusion Science
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Hirayama Takato
Gakushuin University Faculty Of Science
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OHTANI Shunsuke
The University of Electro-Communications
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Yamada Ichihiro
National Institute For Fusion Science
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TAWARA Hiroyuki
National Institute for Fusion Science
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MATSUMOTO Atsushi
National Institute for Fusion Science
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YOSHINO Masuhiro
National Institute for Fusion Science
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Tawara H
Max Planck Inst. Nuclear Physics Saupfercheckweg Deu
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SUZUKI Hiroshi
National Research Center for Profozoan Diseases, Obihiro University of Agriculture and Veterinary Me
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MATUMOTO Atsushi
National Institute for Fusion Science
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DANJO Atsunori
National Institute for Fusion Science
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OHTANI Shinnsuke
National Institute for Fusion Science
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tAKAYANAKI Toshinobu
National Institute for Fusion Science
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WAKIYA Kazuyoshi
National Institute for Fusion Science
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MATSUMOTO A
National Institute for Fusion Science
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YOSHINO M
National Institute for Fusion Science
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Ohtani Shunsuke
Institute For Laser Science University Of Electro-communications
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Shunsuke Ohtani
Cold Trapped Ions Project Icorp Japan Science And Technology Corporation (jst)
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Danjo A
Niigata Univ. Niigata
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Obara Satoshi
Photon Factory Institute For Material Structure Science
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Tanuma H
Department Of Physics Tokyo Metropolitan University
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Hirayama T
Gakushuin University Faculty Of Science
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Ohtani Shunsuke
Cold Trapped Ion Project Japan Science & Technology Cooperation
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Tawara Hiroyuki
National Institute Fbr Fusion Science
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Wakiya K
Tokyo Inst. Technol. Tokyo
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Takayanagi Toshinobu
Department Of Physics Sophia University
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TAWARA Hiroyuki
National Instetute for Fusion Science
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