| 摘要 |
PURPOSE:To obtain pulse-shaped X-rays with a simple structure using a normal X-ray tube as an X-ray source by using a shutter plate directly driven by a piezo-electric actuator. CONSTITUTION:A switching element is controlled by a control circuit C to control the X-ray output from an X-ray tube 1, X-rays are fed to the opening P of a shielding plate. At the same time, on and off operations of an actuator power source 9 to a piezo-electric actuator 4 are controlled by the circuit C via switching elements 10 and 11, the sliding movement of a shutter plate 3 provided with a slit S along the shield plate directly driven by the actuator 4 is controlled, pulse-shaped X-rays are fed to an ionization chamber 2. Pulse- shaped X-rays are obtained with a simple structure using the normal X-ray tube as an X-ray source, the gas in the ionization chamber is ionized. |
