Electron impact excitation of beryllium

被引：19

作者：

Bartschat, K ^{[1
]}

Burke, PG ^{[1
]}

Scott, MP ^{[1
]}

机构：

[1] DRAKE UNIV,DEPT PHYS & ASTRON,DES MOINES,IA 50311

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1996年 / 29卷 / 20期

关键词：

D O I：

10.1088/0953-4075/29/20/008

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Results from an R-matrix with pseudo-states (RMPS) calculation are presented for electron impact excitation of the (2s(2))S-1 --> (2s2p)P-1,3(o) transitions in beryllium for incident energies from threshold up to 5 Ryd. At energies above the ionization threshold (0.685 Ryd), the representation of target continuum states is found to be crucial for accurate results to be obtained. A significant reduction, of up to a factor of two compared to the results of Fon et al, is found for the cross sections in this energy range. This result has important implications regarding the use of currently available e-Be cross section data for plasma diagnostics.

引用

页码：L769 / L772

页数：4

共 11 条

[1] Electron-atom scattering at low and intermediate energies using a pseudo-state R-matrix basis [J].