RADIATION GENERATING TUBE, AND RADIATION GENERATING APPARATUS AND RADIATION IMAGING SYSTEM USING THE SAME

• Main Authors: TSUNODA KOICHI, ANDO YOICHI, ONO HARUTO
• Format: Patent
• Language: English; Japanese
• Published: 25.12.2014
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY

PROBLEM TO BE SOLVED: To provide a radiation generating tube that effectively suppresses electric discharge caused by foreign matters generated inside where a field becomes an intense electric field.SOLUTION: In a radiation generating tube 1 formed by bonding a negative electrode 3 to one of openings of an insulation tube 5 and a positive electrode 4 at the other one of the openings, a recess 6 for collecting foreign particles is provided at one of the negative electrode, the positive electrode, and the insulation tube, and the recess 6 is so formed that foreign particles once collected are difficult to exit from the recess 6 by providing a portion at the opening whose width is narrower than a bottom. 【課題】強電界となる内部で発生する異物による放電を効果的に抑制した放射線発生管を提供する。【解決手段】絶縁管５の一方の開口に陰極３を、他方の開口に陽極４を接合してなる放射線発生管１において、陰極３，陽極４，絶縁管５のいずれかに異物を捕集する凹部６を設け、該凹部６においては、開口部に底部よりも幅が狭い部位を設けることにより、一旦捕集した異物が凹部６より出にくい形状とする。【選択図】図１