Abstract:
본 발명은, 애노드전극과 전자방출소자와의 사이에서 발생한 방전에 의해 새롭게 발생하는 연면방전을 방지하는 전자선 장치를 제공한다. 주사신호 소자전극과 정보신호 소자전극을 포함하는 전자방출소자에 있어서는, 주사신호 소자전극의 일부가, 주사신호배선과 정보신호배선을 절연하는 절연층으로 덮여 있고, 상기 절연층의 단부에서 주사신호 소자전극에 부가전극이 접속되어 있으며, 상기 부가전극은 용융에 의해 소실하는 에너지 Ee가 전자방출소자에 흐르는 방전전류의 에너지 Ea보다 크도록 구성되어 있다.
Abstract:
피어스식 전자총의 전자빔 집속제어에 있어서, 전자총 내부에서의 공간전하 효과 및 공간전하 중화작용의 영향을 없게 하고, 전자빔 제어를 완전한 것으로 한다. 상기 피어스식 전자총 내부의 온도를 직접 측정하는 것에 의해 전자총 내부 압력을 피드백제어한다. 상기 피어스식 전자총 내부의 온도를 직접 측정하는 장소는 애노드(39), 플로우 레지스터(43)가 바람직하다. 다음으로, 캐소드실(31), 중간실, 요동실(33)중 어느 하나의 출구 또는 입구에 설치된 링, 조임, 배기통중 어느 하나이어도 가능하다. 이에 의해, 빔을 만드는 부분의 안정화(전자총 자체의 최적화 설계), 빔 수송부의 안정화 및 빔 사용부의 안정화 전부에 대해서 양호하게 되었다. 피어스, 전자총, 전자빔, 전자빔 집속
Abstract:
The invention provides a charged particle beam system wherein the middle section of the focused ion beam column is biased to a high negative voltage allowing the beam to move at higher potential than the final beam energy inside that section of the column. At low kV potential, the aberrations and coulomb interactions are reduced, which results in significant improvements in spot size.
Abstract:
The invention provides a charged particle beam system wherein the middle section of the focused ion beam column is biased to a high negative voltage allowing the beam to move at higher potential than the final beam energy inside that section of the column. At low kV potential, the aberrations and coulomb interactions are reduced, which results in significant improvements in spot size.
Abstract:
A method and apparatus is disclosed for an electron beam directed energy device. The device consists of an electron gun with one or more electron beams. The device includes one or more accelerating plates with holes aligned for beam passage. The plates may be flat or preferably shaped to direct each electron beam to exit the electron gun at a predetermined orientation. In one preferred application, the device is located in outer space with individual beams that are directed to focus at a distant target to be used to impact and destroy missiles. The aimings of the separate beams are designed to overcome Coulomb repulsion. A method is also presented for directing the beams to a target considering the variable terrestrial magnetic field. In another preferred application, the electron beam is directed into the ground to produce a subsurface x-ray source to locate and/or destroy buried or otherwise hidden objects including explosive devices.
Abstract:
A heater coil for an electron tube includes a spiral wire which is double wound to be cylindrical, and a connection wire which is formed on an upper face of the spiral wire in a horizontal plane. The connection wire is shaped to have at least two bent portions on the same plane.
Abstract:
An electron gun having a thermionic emitter held by boron carbide heating members or the like, supported by electroconductive members which have additional elastic positioning members arranged to nullify the emitter shift and other effects caused by heat distortion.