Spectral Distributions of 280 kVp X Rays

Spectral distributions of both primary and scattered 280 kVp X rays have been measured with a scintillation spectrometer and are presented in tabular form. The attenuation of the primary beam was calculated from the primary spectra and found to be in good agreement with measured attenuation data. Scattered radiation spectra were measured at depths of 2, 5 and 15 cm below the surface of a water phantom using field sizes of 50 cm2 and 300 cm2. …