公开(公告)号：US3835328A

公开(公告)日：1974-09-10

申请号：US25269572

申请日：1972-05-12

Applicant: US AIR FORCE

Inventor： HARRIS W ,  SCHLUTER B ,  TROMBORG E

IPC: G01N27/66 ,  H01J41/08 ,  G01N23/12

CPC classification number: G01N27/66 ,  H01J41/08

Abstract: An ionization detector in which a vapor sample flows past a source of ionizing radiation of beta particles and through a recombination region which forces the sample to pass through a tortuous path created by a series of parallel adjacent and spaced insulated washers mounted about a shaft with the washers having different selected openings. The sample first passes through a metallic manifold also having openings and then through the washers followed by the ion collection region which includes a screen of electrically conducting material. A DC voltage source connects the manifold and the screen with an ammeter in series therewith for readout.

Abstract translation: 一种电离检测器，其中蒸汽样品流过β粒子的电离辐射源并通过复合区域，该复合区域迫使样品通过由一系列平行的相邻和间隔开的绝缘垫圈组成的曲折路径，该垫圈围绕轴安装在轴上 具有不同选择开口的垫圈。 样品首先通过还具有开口的金属歧管，然后穿过垫圈，随后是包括导电材料屏幕的离子收集区域。 直流电压源用歧管和屏幕与串联的电流表连接用于读出。