Shi-yan Sun, Xiang-fu Jia. (e, 2e) Investigations of the Simultaneous Ionization and Excitation of Helium to He+(n=2) (cited: 1)[J]. Chinese Journal of Chemical Physics , 2013, 26(5): 576-579. doi: 10.1063/1674-0068/26/05/576-579
Citation: Shi-yan Sun, Xiang-fu Jia. (e, 2e) Investigations of the Simultaneous Ionization and Excitation of Helium to He+(n=2) (cited: 1)[J]. Chinese Journal of Chemical Physics , 2013, 26(5): 576-579. doi: 10.1063/1674-0068/26/05/576-579

(e, 2e) Investigations of the Simultaneous Ionization and Excitation of Helium to He+(n=2) (cited: 1)

doi: 10.1063/1674-0068/26/05/576-579
  • Three-Coulomb-wave method is employed to treat the process of (e, 2e) simultaneous ion-ization and excitation to the n=2 state of helium, with radial and angular correlated wave-function of He target. The triple differential cross sections are calculated and analyzed in very asymmetric coplanar geometry at incident energies of 5.50, 1.50 and 0.57 keV. Results are compared with the absolute measurements and the theoretical first and second Born approximation. The present triply differential cross section (TDCS) is found to be in good agreement with experimental data qualitatively. The distinguishing feature noted in TDCS structure is the presence of intense recoil peak that for certain parameters is even larger than the binary peak, an unusual feature for the single-ionization process at high and intermediate energies.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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(e, 2e) Investigations of the Simultaneous Ionization and Excitation of Helium to He+(n=2) (cited: 1)

doi: 10.1063/1674-0068/26/05/576-579

Abstract: Three-Coulomb-wave method is employed to treat the process of (e, 2e) simultaneous ion-ization and excitation to the n=2 state of helium, with radial and angular correlated wave-function of He target. The triple differential cross sections are calculated and analyzed in very asymmetric coplanar geometry at incident energies of 5.50, 1.50 and 0.57 keV. Results are compared with the absolute measurements and the theoretical first and second Born approximation. The present triply differential cross section (TDCS) is found to be in good agreement with experimental data qualitatively. The distinguishing feature noted in TDCS structure is the presence of intense recoil peak that for certain parameters is even larger than the binary peak, an unusual feature for the single-ionization process at high and intermediate energies.

Shi-yan Sun, Xiang-fu Jia. (e, 2e) Investigations of the Simultaneous Ionization and Excitation of Helium to He+(n=2) (cited: 1)[J]. Chinese Journal of Chemical Physics , 2013, 26(5): 576-579. doi: 10.1063/1674-0068/26/05/576-579
Citation: Shi-yan Sun, Xiang-fu Jia. (e, 2e) Investigations of the Simultaneous Ionization and Excitation of Helium to He+(n=2) (cited: 1)[J]. Chinese Journal of Chemical Physics , 2013, 26(5): 576-579. doi: 10.1063/1674-0068/26/05/576-579

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