公开(公告)号：US3743876A

公开(公告)日：1973-07-03

申请号：US3743876D

申请日：1969-10-07

Applicant: CANADIAN PATENTS DEV

Inventor： REDHEAD P

IPC: H01J41/04 ,  H01J7/16

CPC classification number: H01J41/04

Abstract: A hot-cathode ionization gauge of the Bayard Alpert type having a central ion collector, a cylindrical grid surrounding the ion collector, a cathode for producing electrons positioned outside the grid, and a cathode-shield which when carrying a suitable voltage will shape the electric field gradient in the vicinity of the cathode such that electrons produced by the cathode will be launched into paths generally towards the ionizing volume of the gauge defined by the grid.

Abstract translation: 具有中心离子收集器的Bayard Alpert型热阴极电离计，围绕离子收集器的圆柱形栅格，用于产生位于栅极外部的电子的阴极，以及当承载合适的电压时将形成电气的阴极屏蔽 阴极附近的场梯度，使得由阴极产生的电子将通常朝着由栅格限定的量规的电离体积引入路径。