公开(公告)号：US3676682A

公开(公告)日：1972-07-11

申请号：US3676682D

申请日：1968-10-30

Applicant: FRED W FALK

Inventor： FALK FRED W

IPC: H01J47/00 ,  H01J47/02 ,  G01T1/18 ,  H01J39/26

CPC classification number: H01J47/02

Abstract: An ionization chamber for measuring absorbed radiation is disclosed, the chamber including a housing which incorporates an anode, a cathode, and a space charge electrode. The anode comprises a conducting plate which has a plurality of protruding needle points with each of the needle points and the conducting plate being at the same electrical potential. The space charge electrode has a plurality of holes therein and is physically displaced from the anode with the holes of the space charge electrode being in registry with the needle points of the anode. The potential of the space charge electrode is less than that of the anode itself.

Abstract translation: 公开了一种用于测量吸收的辐射的电离室，该腔室包括结合有阳极，阴极和空间电荷电极的壳体。 阳极包括导电板，该导电板具有多个突出的针尖，每个针尖和导电板处于相同的电位。 空间电荷电极在其中具有多个孔，并且物理上偏离阳极，空间电荷电极的孔与阳极的针尖对准。 空间电荷电极的电位小于阳极本身的电位。