公开(公告)号：US3760286A

公开(公告)日：1973-09-18

申请号：US3760286D

申请日：1972-10-18

Applicant: ATOMIC ENERGY COMMISSION

Inventor： KELLY J

IPC: H01J3/02 ,  H01J29/54

CPC classification number: H01J3/02

Abstract: An electron beam generator in which an annular sheath of electrons is produced by an annular cathode and anode arrangement and injected in a converging manner to a focal point with a portion of the beam current returned to the center of the converging beam and through the center of the cathode annulus. Another portion of the beam current is fed back around the exterior of the converging beam.

Abstract translation: 一种电子束发生器，其中电子的环形护套由环形阴极和阳极布置产生，并以会聚的方式注入到焦点，其中一部分光束电流返回到会聚束的中心并且通过 阴极环。 光束电流的另一部分被反射回聚光束的外部。