US Pat. No. 10,398,014

METHOD AND APPARATUS FOR RADIATING CHARGED PARTICLES, AND METHOD AND APPARATUS FOR EMITTING X-RAYS

BSR CO., LTD., Aichi (JP...

1. A method for emitting charged particles from a ferroelectric body which has an ultraviolet light receiving surface and a charged particle emitting surface, comprising:a step for auxiliary booting to preliminarily generate a potential difference between the ultraviolet light receiving surface and the charged particle emitting surface, and
a step for irradiating onto the ultraviolet light receiving surface of the ferroelectric body with an ultraviolet light having a wavelength incapable of passing through the ferroelectric body, wherein the ultraviolet light is pulsed light and has a peak power of 1 MW or more, and by which the charged particles stably emitting from the charged particle emitting surface.