Spectral reconstruction of clinical megavoltage photon beams and the implications of spectral determination on the dosimetry of such beams.


An analysis technique, based on simulated annealing, is described which is employed to derive megavoltage photon beam spectral information from narrow beam attenuation measurements. Megavoltage photon beam spectra have been determined using this technique for linear accelerators from different manufacturers, and different models from individual… (More)