X-RAY MODULATION DEVICE AND MODULATION METHOD THEREFOR

摘要

PURPOSE: To modulate an X-ray generation amount with the energy of an excited laser beam kept constant. CONSTITUTION: A metallic target 1 capable of releasing an X-ray from a metallic plasma induced as a result of the irradiation of an ultra short pulse laser beam is provided, together with a posture control device 2 for rotating the metallic target 1 or controlling the angle thereof. In addition, an anisotropic fine structure is formed on the ultra short pulse laser irradiation surface of the target 1.