Transfer Ionization of Helium in Collisions with Cq+ and Oq+ (q =1-3)
WANG Bao-Hong1, FU Hong-Bin2, DING Bao-Wei2, YU De-Yang3, SUN Guang-Zhi2, LIU Zhao-Yuan2
1Department of Physics, Lanzhou University, Lanzhou 7300002School of Nuclear Science and Technology, Lanzhou University, Lanzhou 7300003Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
Transfer Ionization of Helium in Collisions with Cq+ and Oq+ (q =1-3)
WANG Bao-Hong1, FU Hong-Bin2, DING Bao-Wei2, YU De-Yang3, SUN Guang-Zhi2, LIU Zhao-Yuan2
1Department of Physics, Lanzhou University, Lanzhou 7300002School of Nuclear Science and Technology, Lanzhou University, Lanzhou 7300003Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
摘要Cross-section ratios σTI/σSC of transfer ionization (TI) to single capture (SC) of Cq+- and Oq+-He (q=1-3) collisions in the energy range of 15--440keV/u (0.8--4.2vBohr) are experimentally determined. It is shown that σTI/σSC strongly depends on the projectile velocity, and there is a maximum for E(keV/u)/q1/2≈150. Combining the Bohr--Lindhard model and the statistical model, a theoretical estimate is presented, in reasonable agreement with the experimental data when E(keV/u)/q1/2 >35.
Abstract：Cross-section ratios σTI/σSC of transfer ionization (TI) to single capture (SC) of Cq+- and Oq+-He (q=1-3) collisions in the energy range of 15--440keV/u (0.8--4.2vBohr) are experimentally determined. It is shown that σTI/σSC strongly depends on the projectile velocity, and there is a maximum for E(keV/u)/q1/2≈150. Combining the Bohr--Lindhard model and the statistical model, a theoretical estimate is presented, in reasonable agreement with the experimental data when E(keV/u)/q1/2 >35.
(Electronic excitation and ionization of atoms (including beam-foil excitation and ionization))
引用本文:
WANG Bao-Hong;FU Hong-Bin;DING Bao-Wei;YU De-Yang;SUN Guang-Zhi;LIU Zhao-Yuan. Transfer Ionization of Helium in Collisions with Cq+ and Oq+ (q =1-3)[J]. 中国物理快报, 2008, 25(7): 2460-2463.
WANG Bao-Hong, FU Hong-Bin, DING Bao-Wei, YU De-Yang, SUN Guang-Zhi, LIU Zhao-Yuan. Transfer Ionization of Helium in Collisions with Cq+ and Oq+ (q =1-3). Chin. Phys. Lett., 2008, 25(7): 2460-2463.
2008, Vol. 25 
