Patent ID: 8102968

Claim:
A high brightness X-ray generator for generating an X-ray by inverse Compton scattering by colliding an electron beam with pulse laser light, the generator comprising: (a) a plurality of pulse laser units that emit a plurality of pulse laser lights in predetermined periods; (b) an optical-path matching unit that matches optical paths of the plurality of pulse laser lights; (c) a timing control unit that is disposed to control timings of the optical-path matching unit and the plurality of pulse laser units, wherein the plurality of pulse laser lights is emitted from a same optical path at different timings; (d) a polarization beam splitter that makes a match with an optical path of P-polarized light by directly passing pulse laser light as the P-polarized light and reflecting pulse laser light as S-polarized light in an orthogonal direction; and (e) a polarization plane control element selected from the group consisting of a first polarization plane control element disposed to directly pass the S-polarized light and to convert the P-polarized light into S-polarized light that is passed, and a second polarization plane control element disposed to directly pass the P-polarized light and to convert the S-polarized light into P-polarized light that is passed.