Comparison of measured responses in two spectrally-sensitive X-ray detectors to predictions obtained using the its radiation transport code

Responses of a Ge detector and a filtered TLD array detector have been measured at a steady-state bremsstrahlung source (the Pelletron), at endpoint energies from 150 to 900 keV. Predictions of detector response using Monte Carlo ITS codes are found to be in excellent agreement with measured responses for both detectors. These results extend the range of validity of the ITS codes. With calibration provided by these experiments and by ITS predictions, dose-depth data from the TLD arrays can be used to estimate flash X-ray source endpoint energies