| 1 | Benchmark Integral Cross Sections for Electron Impact Excitation of the n=2 States in Helium显示文摘<正> In this paper, we present integral cross sections (ICS) for electron impact excitationof the n= 2 levels in helium in the impact energy range of 23.5 eV to 35 eV. The ICS of each finalstate, 2~3S, 2~1S, 2~3p and 2~1P, has been determined by integration of the angular differential crosssections (DCS) over all of 0° to 180°, where those DCS were obtained from both our previousexperiments and the extrapolation using the convergent close coupling calculation. The presentexperimental ICS for the optically allowed 2~1p transition state are also compared with thoseobtained from the BEf-scaling method. Very good agreement between the experimental andBEf-scaled 2~1P ICSs is generally found in the measured impact energy region. | M.HOSHINO H.KATO D.SUZUKI H.TANAKA I.BRAY D.V.FURSA S.J.BUCKMAN O.INGLFSSON M.J.BRUNGER | 2010 | Plasma Science and Technology2010，12，3： | 0 |
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