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Article Navigation >  Nuclear Physics Review  > 2010  >  27(4): 500-504

FENG Wen-tian, MA Xin-wen, #, ZHU Xiao-ong, ZHANG Shao-eng, LIU Hui-ing, LI Bin, AN Shun-heng. Investigation on Electron Energy Spectra of Transfer Ionization Process in 70 and 100 keV He2+Colliding on He[J]. Nuclear Physics Review, 2010, 27(4): 500-504. doi: 10.11804/NuclPhysRev.27.04.500
Citation: FENG Wen-tian, MA Xin-wen, #, ZHU Xiao-ong, ZHANG Shao-eng, LIU Hui-ing, LI Bin, AN Shun-heng. Investigation on Electron Energy Spectra of Transfer Ionization Process in 70 and 100 keV He2+Colliding on He[J]. Nuclear Physics Review, 2010, 27(4): 500-504. doi: 10.11804/NuclPhysRev.27.04.500
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Investigation on Electron Energy Spectra of Transfer Ionization Process in 70 and 100 keV He2+Colliding on He

doi: 10.11804/NuclPhysRev.27.04.500

  • 1 Insititute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-12-20
  • The energy spectra of emitted electrons in transfer ionization process of 70 and 100 keV He2+ colliding on He haev been measured by using Reaction Microscope . The energy spectra of the ejected electrons have been obtained in the angular range from 0° to 45° and energies from 0 to 45 eV. The characteristics of the energy spectra were analyzed. There is a maximum in each energy spectrum related to different emission angles; The position of the maximum decreases with increasing the emission angle; The velocity of emitted electrons is between 0 and vp， where vp is the projectile velocity; Most electrons are around 0 eV when electron emission angle is 45°. These characteristic could be qualitatively explained in a “quasimolecule” model. The ECC electrons were observed in the transfer ionization process of 100 keV He2+ colliding on He collision， It could be explained as dynamical twostep process.
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Investigation on Electron Energy Spectra of Transfer Ionization Process in 70 and 100 keV He2+Colliding on He

doi: 10.11804/NuclPhysRev.27.04.500
  • 1 Insititute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-12-20

Abstract: The energy spectra of emitted electrons in transfer ionization process of 70 and 100 keV He2+ colliding on He haev been measured by using Reaction Microscope . The energy spectra of the ejected electrons have been obtained in the angular range from 0° to 45° and energies from 0 to 45 eV. The characteristics of the energy spectra were analyzed. There is a maximum in each energy spectrum related to different emission angles; The position of the maximum decreases with increasing the emission angle; The velocity of emitted electrons is between 0 and vp， where vp is the projectile velocity; Most electrons are around 0 eV when electron emission angle is 45°. These characteristic could be qualitatively explained in a “quasimolecule” model. The ECC electrons were observed in the transfer ionization process of 100 keV He2+ colliding on He collision， It could be explained as dynamical twostep process.

FENG Wen-tian, MA Xin-wen, #, ZHU Xiao-ong, ZHANG Shao-eng, LIU Hui-ing, LI Bin, AN Shun-heng. Investigation on Electron Energy Spectra of Transfer Ionization Process in 70 and 100 keV He2+Colliding on He[J]. Nuclear Physics Review, 2010, 27(4): 500-504. doi: 10.11804/NuclPhysRev.27.04.500
Citation: FENG Wen-tian, MA Xin-wen, #, ZHU Xiao-ong, ZHANG Shao-eng, LIU Hui-ing, LI Bin, AN Shun-heng. Investigation on Electron Energy Spectra of Transfer Ionization Process in 70 and 100 keV He2+Colliding on He[J]. Nuclear Physics Review, 2010, 27(4): 500-504. doi: 10.11804/NuclPhysRev.27.04.500
shu

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