公开(公告)号：US5955829A

公开(公告)日：1999-09-21

申请号：US934678

申请日：1997-09-22

Applicant: Ulf Seyfert ,  Olaf Roder ,  Siegfried Schiller ,  Siegfried Panzer ,  Robert Mohs

Inventor： Ulf Seyfert ,  Olaf Roder ,  Siegfried Schiller ,  Siegfried Panzer ,  Robert Mohs

IPC: H01J33/02 ,  H01J37/065 ,  H01J1/46

CPC classification number: H01J33/02 ,  H01J37/065

Abstract: Electron gun with band-shaped beams that includes a vacuum chamber extend in a longitudinal direction, a beam window running in the longitudinal direction along the vacuum chamber, and a cathode control-electrode system positioned within the vacuum chamber in the longitudinal direction. The cathode control-electrode system includes at least one substantially straight cathode positioned substantially parallel to a longitudinal axis of the cathode control-electrode system and the at least one substantially straight cathode has bulges formed at defined distances. The bulges are shaped to produce a substantially homogeneous current density distribution along the at least one substantially straight cathode and support units are located in the cathode control-electrode system to correspond with the bulges. The bulges are removably couplable to the support units.

Abstract translation: 具有带状梁的电子枪，其包括在纵向方向上延伸的真空室，沿着该真空室在纵向方向上延伸的梁窗，以及沿纵向方向定位在真空室内的阴极控制电极系统。 阴极控制电极系统包括基本上平行于阴极控制电极系统的纵轴定向的至少一个基本上直的阴极，并且至少一个基本上直的阴极具有以限定的距离形成的凸起。 凸起成形为沿着至少一个基本上直的阴极产生基本均匀的电流密度分布，并且支撑单元位于阴极控制电极系统中以对应于凸起。 凸起可拆卸地联接到支撑单元。