Investigation of the transfer ionization process in collisions of partially stripped ions on He

doi:10.1088/1674-1056/19/6/063404

中国物理B ›› 2010, Vol. 19 ›› Issue (6): 63404-063404.doi: 10.1088/1674-1056/19/6/063404

Investigation of the transfer ionization process in collisions of partially stripped ions on He

陈熙萌¹, 席发元¹, 欧阳晓平², 苏光辉², 刘会平³

(1)School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China; (2)State Key Laboratory of Multiphase Flow in Power Engineering, Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; (3)State Key Laboratory of Multiphase Flow in Power Engineering, Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China;School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

收稿日期:2009-06-30 出版日期:2010-06-15 发布日期:2010-06-15

Investigation of the transfer ionization process in collisions of partially stripped ions on He

Liu Hui-Ping(刘会平)^a)b), Chen Xi-Meng(陈熙萌)^b), Ouyang Xiao-Ping(欧阳晓平)^a), Xi Fa-Yuan(席发元)^b), and Su Guang-Hui(苏光辉)^a)^†

^a State Key Laboratory of Multiphase Flow in Power Engineering, Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; ^b School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

Received:2009-06-30 Online:2010-06-15 Published:2010-06-15

摘要/Abstract

摘要： In this paper a projectile ion-recoil ion coincidence technique is used to investigate the transfer ionization processes in collisions of 0.22--6.30~MeV C^{q + } ions and 0.25--6.35~MeV O^{q + } ions (q=1, 2, 3, 4) with the He atom separately. The cross section ratio f of transfer ionization to single electron transfer is measured, and the dependence of f on both charge state q and energy E of the projectiles is investigated. The electron-structure and the mechanisms leading to transfer ionization affect the dependence of f on q and E. Our measurements, along with other data published previously, suggest a similar dependence of f on charge state and energy of projectile for partially stripped ions over a large energy range. The maximum value of f is approximately 0.17q^{0.60}; the energy corresponding to maximum f is about 160q^{0.60}~keV/u.

Abstract: In this paper a projectile ion-recoil ion coincidence technique is used to investigate the transfer ionization processes in collisions of 0.22--6.30~MeV C$^{q + }$ ions and 0.25--6.35~MeV O$^{q + }$ ions ($q$ = 1, 2, 3, 4) with the He atom separately. The cross section ratio f of transfer ionization to single electron transfer is measured, and the dependence of f on both charge state q and energy E of the projectiles is investigated. The electron-structure and the mechanisms leading to transfer ionization affect the dependence of f on q and E. Our measurements, along with other data published previously, suggest a similar dependence of f on charge state and energy of projectile for partially stripped ions over a large energy range. The maximum value of f is approximately 0.17$q^{0.60}$; the energy corresponding to maximum f is about 160$q^{0.60}$~keV/u.

Key words: ion--atom collision, transfer ionization, single electron transfer

中图分类号: (Electronic excitation and ionization of molecules)

34.50.Gb

34.70.+e (Charge transfer)

刘会平, 陈熙萌, 欧阳晓平, 席发元, 苏光辉. Investigation of the transfer ionization process in collisions of partially stripped ions on He[J]. 中国物理B, 2010, 19(6): 63404-063404.

Liu Hui-Ping(刘会平), Chen Xi-Meng(陈熙萌), Ouyang Xiao-Ping(欧阳晓平), Xi Fa-Yuan(席发元), and Su Guang-Hui(苏光辉). Investigation of the transfer ionization process in collisions of partially stripped ions on He[J]. Chin. Phys. B, 2010, 19(6): 63404-063404.

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Investigation of the transfer ionization process in collisions of partially stripped ions on He

Investigation of the transfer ionization process in collisions of partially stripped ions on He

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