DIFFERENTIAL CROSS-SECTIONS FOR ELASTIC AND INELASTIC N=2 EXCITATION OF GROUND-STATE HELIUM AT 29.6 AND 40.1 EV

被引:40
作者
BRUNGER, MJ [1 ]
MCCARTHY, IE [1 ]
RATNAVELU, K [1 ]
TEUBNER, PJO [1 ]
WEIGOLD, AM [1 ]
ZHOU, Y [1 ]
ALLEN, LJ [1 ]
机构
[1] FLINDERS UNIV,SCH PHYS SCI,INST ATOM STUDIES,BEDFORD PK,SA 5042,AUSTRALIA
关键词
D O I
10.1088/0953-4075/23/8/009
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Differential cross sections have been measured for elastic and inelastic (23S, 21S, 23P and 21P) scattering of electrons by ground-state helium at 29.6 and 40.1 eV. The normalisation of the cross sections is discussed. Theoretical cross sections have been obtained using a ten-state coupled-channels-optical calculation. In general, there is good agreement between theory and experiment for singlet states but not for triplet. © 1990 IOP Publishing Ltd.
引用
收藏
页码:1325 / 1335
页数:11
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