A simulation for the optimization of bremsstrahlung radiation for nuclear applications using laser accelerated electron beam

Laser accelerated electron beam can be a compact source for high energetic photon generation for nuclear application. A simulation code using GEANT4 has been developed for the estimation of Bremsstrahlung radiation from laser accelerated electron beams impinging on a metal target and the photonuclear reaction of a sample target. The energy and angular distribution of Bremsstrahlung radiation depending on different target thickness and electron parameters as well as the emission spectrum due to radioactive decay from the sample activated by high energy photons generated can give us an idea of optimal condition for the desired nuclear applications. We discussed the critical issues of high energy photon generation for photonuclear reaction experiments.