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内容記述 |
Photon sources based on inverse Compton scattering, namely the interaction between ultra-relativistic electrons and laser photons, are emerging as quasi-monochromatic energy-tunable sources either as compact alternatives to synchrotron facilities for the production of low energy (10-100 keV) X-rays or to reach the 1-100 MeV photon energy range, which is inaccessible at synchrotrons. Different interaction layouts are possible for electron and laser beams and several possible applications are being studied, ranging from fundamental research in nuclear physics to advanced X-ray imaging
in the biomedical ?eld, depending on the radiation energy range, intensity and energy bandwidth.
Regardless of the speci?c application, a reliable tool for the simulation of the radiation produced considering a given set of interaction parameters is essential for the design, the commissioning and subsequently the study and optimization of this kind of sources. Di?erent computational tools have been developed for this task, based on both a purely analytical treatment and Monte Carlo simulation codes. Each of these tools has strengths and weaknesses. Here we present a novel Monte Carlo code based on Geant4 for the simulation of inverse Compton scattering in the linear regime. The code produces results in agreement with CAIN, one of the most used Monte Carlo tool, for a wide
range of interaction conditions at a computational time reduced by two order of magnitude. Furthermore, the developed tool can be easily embedded in a Geant4 user application for the tracking of photons generated through inverse Compton scattering in a given experimental setup. |
