EIICS data

Abstract Electron impact inner-shell ionization cross-section (EIICS) calculations of neutral atoms with atomic numbers Z = 6-92 for /6-shell, Z = 18-92 for E-shell, and Z = 79-92 for M-shell have been reviewed. In this work, the evaluations of the EIICS are discussed using our recently propounded easy-to-use models that are found adequately successful in describing the experimental cross sections. The selection of the range of atomic number Z for different inner-shells was guided by the availability of the EIICS data either from experiments or from rigorous quantal calculations. Details of the models have been... 

The incorporation of relativistic correction factors, similar to Gryzinski s relativistic factor [22], on the QIBED model. The resulting model, referred to as MUIBED in Ref. [58], has been successfully tested with various experimental EIICS data for K-, L-, and M-shell ionization of atoms. 

Here A (Z) and B (Z) represent the two Z-dependent parameters of the model and f (= ril) denotes a particular subshell in which ionization takes place. The two parameters, A5(Z) and Bf (Z), are obtained by fitting the calculated DWBA results. Equation (9) has been found to describe well the EIICS data for the reduced incident energies LZ < 10 but does not provide satisfactory results at high- and ultrarelativistic energies. 

X-shell ionization, these are determined from optimizing the overall fits of the experimental EIICS data for H-isoelectronic sequence with an unfilled configuration, as done in Ref. [54] and He-like targets with a filled configuration. The optimized values of m and X for the K-shell are listed in Table 6.4. The optimized m and X for the L-shell with RM in Eq. (28) and the M-shell with Rm in Eq. (29) have been obtained using the respective inner-shell EIICS data of Au, Pb, and Bi and are listed in Table 6.4. 

Figure 6.51 Same as in Figure 6.1 for the /(-shell in U. The EIICS data are from Ref. [76]. The open circles and square are the quantum results from Refs. [1, 2]. 

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