公开(公告)号：US3746905A

公开(公告)日：1973-07-17

申请号：US3746905D

申请日：1971-12-21

Applicant: US ARMY

Inventor： SHELTON J ,  HAGOOD J ,  NORMAN R

IPC: H01J1/304 ,  H01J21/36 ,  H01J1/16 ,  H01J19/10

CPC classification number: H01J1/304 ,  H01J21/36

Abstract: An improved electron tube is provided which eliminates the need for a heated electron source and affords simplified construction. The tube, a high vacuum tube, is capable of operating over an extended range of electrical potentials. The electron tube operates on the principle of electric field effect emission for the electron source, requiring neither gas, vapor nor a heated electrode in its envelope. Two active elements, an emitter and a collector, are enclosed in an evacuated chamber with outside connections to each element. The collector is a metal plate and the emitter is an oxide-metal composite which contains a very large number of metal filaments embedded in an insulating oxide matrix. The number of filaments normally exceed one million per square centimeter of exposed surface, having ends connected on the back side to a conducting plate for external connection.

Abstract translation: 提供了一种改进的电子管，其不需要加热的电子源并且提供简化的结构。 管，一个高真空管，能够在一个延长的电位范围内运行。 电子管的工作原理是电子源的电场效应发射，既不需要气体，蒸气也不需要在其外壳中加热电极。 两个有源元件，一个发射极和一个收集器，被封闭在一个抽真空室中，每个元件都有外部连接。 收集器是金属板，发射极是一种氧化物 - 金属复合材料，它含有非常多的嵌入绝缘氧化物基质中的金属细丝。 长丝的数量通常超过每平方厘米暴露表面的百万分之一，其端部在背面连接到用于外部连接的导电板。