| 摘要 |
PURPOSE:To minimize the consumption of energy and extent the lifetime of an electron beam circuit component by allowing electron beams to enter a first cylinder-shaped electrode outside a target and carrying out discharge between the electrode and a second cylinder-shaped electrode outside, energizing laser gas and perform laser oscillation. CONSTITUTION:A cathode 2 is installed to the center of a cylinder-shaped laser tube 20 while a cylinder-shaped target 3 is installed so that it may surround the cathode, thereby forming an X-ray generation section 1. The electron beams generated in the cathode 2 in the center of the X-ray generation sectional collides with the target 3 where X-rays are generated on the rear of the target by braking radiation. There is a laser discharge space 4 which is coaxially cylinder-shaped outside the target. The X-rays diverged to the rear of the target penetrates the first electrode 5 provided coaxially and cylinder-shaped and they are introduced into the laser discharge space where a laser medium in the laser discharge span is preionized. It is possible to energize the laser medium in the discharge span and obtain laser oscillation by discharging between the first electrode 5 and the second electrode 6 laid out around the inner periphery and the outer periphery of the laser discharge space. |
