Title:
【発明の名称】イオンチャンバ及びスペーサ要素
Document Type and Number:
Japanese Patent JP3380815
Kind Code:
B2
Abstract:
A simplified ion chamber for determining radiation from an X-ray source with the chamber having a single emitter electrode (18) and a collector electrode (24) of substantially the same size. A spacer element for positioning between the emitter and the collector electrodes is composed of a molded cellular plastic sheet with open areas (34,35,36) molded in the sheet for alignment with ion collecting areas of the collector electrode and the open areas being formed with tapered walls. The spacer element also has pathways (48,49,50) formed by higher density areas corresponding to conductive pathways of the collector electrode.
Inventors:
Michael Matthias Klein
Application Number:
JP6081893A
Publication Date:
February 24, 2003
Filing Date:
March 22, 1993
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
G01T1/00; G01T1/185; H01J47/02; (IPC1-7): H01J47/02; G01T1/00; G01T1/185
Attorney, Agent or Firm:
Kenichi Matsumoto