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The ionization processes in collisions of H (1s) atoms with He2+ are studied by the classical trajectory Monte Carlo method. The first-order differential cross sections for ionization are calculated for different field strengths of both transverse and parallel magnetic field, and they increase obviously with the fields applied. Instead of monotonic decline, a peak appears for the differential cross section, with the fields applied. According to the analysis of trajectories, the ionization mechanisms become quite different. In this paper, the influences the strength and direction of the applied field including the incident energy on the ionization mechanisms are also explained.
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Keywords:
- heavy-particle collision /
- classical trajectory Monte Carlo method /
- strong magnetic field /
- impact ionization
[1] Stolterholt N 1997 Electron Emission in Heavy Ion-Stom Collisions (Heidelberg: Springer-Verlag Press)
[2] Grosdanov T P, McDowell M R C 1985 J. Phys. B 18 921
[3] Bradenbrink S, Sidky E Y, Roller-Lutz Z, Lutz H O 1997 J. Phys. B 30 L161
[4] Bradenbrink S, Sidky E Y, Roller-Lutz Z, Reihl H, Lutz H O 1997 Phys. Rev. A 55 4290
[5] Bradenbrink S, Reihl H, Roller-Lutz Z, Lutz H O 1997 J. Phys. B 30 5819
[6] He B, Wang J G, Janev R K 2009 Phys. Rev. A 79 012706
[7] Zhang H, Wang J G, He B, Qiu Y B, Janev R K 2007 Phys. Plasmas 14 053505
[8] Liu L, Wang J G, Janev R K 2008 Phys. Rev. A 77 042712
[9] Ding D, He B, Liu L, Zhang C H, Wang J G 2009 Acta Phys. Sin. 58 8419 (in Chinese) [丁丁, 何斌, 刘玲, 张程华, 王建国 2009 58 8419]
[10] Luka S, Fabio S 1997 J. Phys. B 29 751
[11] Lu Z Z, Chen D Y, Fan R W, Xia Y Q 2012 Appl. Phys. Lett. 100 014105
[12] Kirchner T 2004 Phys. Rev. A 69 063412
[13] Montanari C C, Montenegro E C, Miraglia J E 2012 J. Phys. B 45 105201
[14] Pinzola M S, Lee T G, Colgan J 2011 J. Phys. B 44 205204
[15] Abrines R, Percival I C 1966 Proc. Phys. Soc. London 88 861
[16] Ning F F, He J F, Zeng S L, Zou S Y, Yan J 2011 Acta Phys. Sin. 60 043201 (in Chinese) [倪飞飞, 何建锋, 曾思良, 邹士阳, 颜君 2011 60 043201]
[17] Jackson J D 1975 Classical Electrodynamics (Chapter 13) (New York: John Wiley press)
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[1] Stolterholt N 1997 Electron Emission in Heavy Ion-Stom Collisions (Heidelberg: Springer-Verlag Press)
[2] Grosdanov T P, McDowell M R C 1985 J. Phys. B 18 921
[3] Bradenbrink S, Sidky E Y, Roller-Lutz Z, Lutz H O 1997 J. Phys. B 30 L161
[4] Bradenbrink S, Sidky E Y, Roller-Lutz Z, Reihl H, Lutz H O 1997 Phys. Rev. A 55 4290
[5] Bradenbrink S, Reihl H, Roller-Lutz Z, Lutz H O 1997 J. Phys. B 30 5819
[6] He B, Wang J G, Janev R K 2009 Phys. Rev. A 79 012706
[7] Zhang H, Wang J G, He B, Qiu Y B, Janev R K 2007 Phys. Plasmas 14 053505
[8] Liu L, Wang J G, Janev R K 2008 Phys. Rev. A 77 042712
[9] Ding D, He B, Liu L, Zhang C H, Wang J G 2009 Acta Phys. Sin. 58 8419 (in Chinese) [丁丁, 何斌, 刘玲, 张程华, 王建国 2009 58 8419]
[10] Luka S, Fabio S 1997 J. Phys. B 29 751
[11] Lu Z Z, Chen D Y, Fan R W, Xia Y Q 2012 Appl. Phys. Lett. 100 014105
[12] Kirchner T 2004 Phys. Rev. A 69 063412
[13] Montanari C C, Montenegro E C, Miraglia J E 2012 J. Phys. B 45 105201
[14] Pinzola M S, Lee T G, Colgan J 2011 J. Phys. B 44 205204
[15] Abrines R, Percival I C 1966 Proc. Phys. Soc. London 88 861
[16] Ning F F, He J F, Zeng S L, Zou S Y, Yan J 2011 Acta Phys. Sin. 60 043201 (in Chinese) [倪飞飞, 何建锋, 曾思良, 邹士阳, 颜君 2011 60 043201]
[17] Jackson J D 1975 Classical Electrodynamics (Chapter 13) (New York: John Wiley press)
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