Bremsstrahlung Cross Sections for Al and Au for Incident-Electron Energies of 0.05 and 0.20 MeV

Comparisons of theoretical electron-bremsstrahlung cross sections for Al and Au from the work of Brysk, Zerby, and Penny are made with new experimental values at incident-electron energies of 0.05 and 0.20 MeV. Photon energies of 10, 20, 30, and 40 keV are considered in the angular region from 10 to 120 deg at 0.050-MeV incident-electron energy. Photon energies of 46, 76, 106, 166, and 196 keV for Al and 80, 120, and 160 keV for Au are considered at 0.20-MeV incident-electron energy. Agreement between experiment and theory is within experimental error except at small angles and low photon energy.