Theory And Simulation Study Of Thomson Scattering

X-ray source based on Thomson scattering, because of its high intensity, shortpulse duration, compact structure, quasi-monochromatic, parameters tunable and otherimportant advantages, has wide applications in solid-state physics, plasma physics, lifescience, medical science and other subjects.In this thesis, we study the theory of Thomson scattering, and present the analysisof the spectral distributions of the scattered photons within a certain acceptance anglein Thomson scattering. We study the in?uence of the acceptance angle on yield andenergy spread of the scattered photons within the acceptance angle.We also bring out a method of producing attosecond X-ray pulse based on Thom-son scattering, and carry out theory and simulation verification.Based on the theory study of Thomson scattering, we design a simulation programto simulate the Thomson scattering process using Monte Carlo method. Using thisprogram we can also achieve the scattered photon yield quickly and get peak on-axisbrightness of the scattered photons.Finally, using the Thomson scattering simulation program, we optimize Thomsonscattering system in Accelerator Lab of Tsinghua University to get maximum yield andpeak on-axis brightness of the scattered X-ray photons. We present the optimal designof the parameters such as the collision angle, focal spot size of the beams, bunch charge,bunch duration, laser energy and laser duration.