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在边界等离子体中, 氢及其同位素分子与高能电子碰撞可发生电离反应. 对于尚无可利用的氢及其同位素分子的电子碰撞非解离性电离反应截面, 基于莫尔斯函数、弗兰克-康登原理, 采用半经典的Gryzinski方法进行了计算. 得到反应截面随电子能量的变化情况以及振动能级对反应截面的影响. 计算结果表明分子的振动激发对电离反应有着显著影响.
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关键词:
- 电离 /
- 截面 /
- 半经典Gryzinski方法
In the edge plasma, hydrogen and its isotopic molecule will be ionized via collisions with the energetic electrons in the plasmas. The cross section data for the electron impact non-dissociative ion of the hydrogen and its isotopic molecule, which are unavailable from the literature are calculated on the basis of Morse potential function, Franck-Condon theory and semi-classical Gryzinski method. The change of cross section with electron energy and the effect of vibrational level of ground state on the cross section are presented in the paper. The results show that the vibrational excitation plays an important role in the process of ion.-
Keywords:
- ion /
- cross section /
- semi-classical Gryzinski method
[1] Pigarov A Y 2002 Physica Scripta T96 77 161
[2] Celiberto R, Janev R K, Capitelli M 2001 Atomic Data and Nuclear Data Tables 77 161
[3] Capitelli M, Celiberto R, Esposito F 2002 Plasma Sources Sci. Technol 11 A7
[4] Janev R K, Reiter D, Samm U 2003 Collision Processes in Low- Temperature Hydrogen Plasmas 1 188
[5] Matveyevt A A, Silakovt V P 1995 Plasma Sources Science and Technology 4 606
[6] Cowling I R, Fletcher J 1973 J. Phys. B: Atom. Molec. Phys. 6 665
[7] Celibero R, Cacciatore M 1990 Chemical Physics 140 209
[8] Cacciatore M, Capitelli M, Gorse C 1980 J. Phys. D: Appl. Phys. 13 575
[9] Parikh Mihir 1975 Phys. Rev. A 12 5
[10] Cacciatore M, Capitelli M 1981 Chemical Physics 55 67
[11] Celiberto R, Cives P, Cacciatore M1990 Chemical Physics Letters 169 69
[12] Herzberg G 1950 Molecular spectra and molecular structure (United States of America: D. Van Nostrand Company) 043404-4
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[1] Pigarov A Y 2002 Physica Scripta T96 77 161
[2] Celiberto R, Janev R K, Capitelli M 2001 Atomic Data and Nuclear Data Tables 77 161
[3] Capitelli M, Celiberto R, Esposito F 2002 Plasma Sources Sci. Technol 11 A7
[4] Janev R K, Reiter D, Samm U 2003 Collision Processes in Low- Temperature Hydrogen Plasmas 1 188
[5] Matveyevt A A, Silakovt V P 1995 Plasma Sources Science and Technology 4 606
[6] Cowling I R, Fletcher J 1973 J. Phys. B: Atom. Molec. Phys. 6 665
[7] Celibero R, Cacciatore M 1990 Chemical Physics 140 209
[8] Cacciatore M, Capitelli M, Gorse C 1980 J. Phys. D: Appl. Phys. 13 575
[9] Parikh Mihir 1975 Phys. Rev. A 12 5
[10] Cacciatore M, Capitelli M 1981 Chemical Physics 55 67
[11] Celiberto R, Cives P, Cacciatore M1990 Chemical Physics Letters 169 69
[12] Herzberg G 1950 Molecular spectra and molecular structure (United States of America: D. Van Nostrand Company) 043404-4
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