Device for separating uranium isotopes

Object: To use a laser, in which rare gas or its compound is active material, and a tunable laser photoexcited by the first mentioned laser to efficiently separate uranium isotopes. Structure: A standing wave of light is present within a resonator of krypton laser, the standing wave partly passes through a reflection mirror, and a greater part of the passed light passes through a reflection mirror and is incident on an active material of tunable laser to photoexcite the active material. Within the resonator of laser is produced a standing wave of light, part of which passes through the reflection mirror, and a greater part of the passed light passes through a reflection mirror and is incident on an uranium atomic beam generated from an uranium evaporation device. At this time, the oscillating wave length of the tunable laser is tuned to absorbing rays of 235U so that 235U may selectively be excited and further photo-ionized by krypton laser. A 235U ion beam generated is collected through the deflector. (Kawakami, Y.)