We propose to build up a facility of sub-picosecond hard X-ray pulses
based on Thomson scattering between femtosecond laser pulses and
relativistic electrons which is a useful tool for the purpose of
material investigation, plasma diagnostics, and shock wave measurement.
This article reviews the principles and the development of X-ray
sources based on Thomson scattering. Then New Light
Source®, the Thomson scattering X-ray facility we will develop
is introduced. The characteristics of a Thomson scattering X-ray source
are analyzed. A computer model of the Thomson source to be developed is
described in order to provide a source of the rays used in a ray
tracing method, which has proved to be an essential computer tool for
designing and optimizing the optical system of high brightness X-ray
facilities. A code for the ray tracing source model is created based on
the Monte Carlo approach. It is able to evaluate the properties and
performances of the light source under development using this model.
According to the simulation results, we discuss the dependence of
imaging quality and source properties including spectral distribution,
emittance, flux which depends on the laser and electron beam
parameters, in order to check if operation performances are as
expected. We also estimate the possibility of measuring the energy
spectrum of a Thomson scattering source by using a crystal diffraction
method. Ray tracing calculations are performed using SHADOW program
package, and a new model of Thomson scattering X-ray source which can
be processed in that program is established with additional code.