Shape functions for atomic-field bremsstrahlung from electrons of kinetic energy 1–500 keV on selected neutral atoms 1 ≤ Z ≤ 92

Abstract A tabulation is presented of theoretical predictions for the shape functions for atomic-field bremsstrahlung for 24 atoms with atomic number Z ranging from 1 to 92 for six incident electron energies T1 from 1 to 500 keV. The shape function is defined as the ratio of the bremsstrahlung cross section differential in photon energy and angle to the photon energy spectrum. Shape functions have been tabulated for photon angles from 0° to 180° in 5° intervals for 12 values of the fraction of energy radiated /T1 from 0 to 1.0. The tables for2 ≤ Z ≤ 92 result from interpolations in atomic number and fraction of energy radiated from a set of benchmark data calculated by treating the bremsstrahlung process as a single-electron transition in a relativistic self-consistent screened potential. The table for Z = 1 is calculated using a screened Born approximation.