Bayesian Electron Spectrum Reconstruction From Dose-Depth Profiles

Dr. Vesselin I. Dimitrov
Senior Instrumentation Physicist
Idaho Accelerator Center, ISU

The direct measurement of the energy distribution of intense space-charge dominated electron beams is a very difficult if not impossible task. I will discuss an indirect method for reconstructing the elecron energy spectrum from a measured electron dose-depth profile in an absorber. It is, in general, an ill-posed inverse problem which can only be solved by inference.  A short review of the Baysian approach will be given and the method will be applied to the problem at hand.