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Title: High pressure xenon ionization detector

A method is provided for detecting ionization comprising allowing particles that cause ionization to contact high pressure xenon maintained at or near its critical point and measuring the amount of ionization. An apparatus is provided for detecting ionization, the apparatus comprising a vessel containing a ionizable medium, the vessel having an inlet to allow high pressure ionizable medium to enter the vessel, a means to permit particles that cause ionization of the medium to enter the vessel, an anode, a cathode, a grid and a plurality of annular field shaping rings, the field shaping rings being electrically isolated from one another, the anode, cathode, grid and field shaping rings being electrically isolated from one another in order to form an electric field between the cathode and the anode, the electric field originating at the anode and terminating at the cathode, the grid being disposed between the cathode and the anode, the field shaping rings being disposed between the cathode and the grid, the improvement comprising the medium being xenon and the vessel being maintained at a pressure of 50 to 70 atmospheres and a temperature of 0 to 30 C. 2 figs.
Inventors:
Issue Date:
OSTI Identifier:
7018432
Assignee:
Yale Univ., New Haven, CT (United States) CHO; EDB-94-118196
Patent Number(s):
US 4880983; A
Application Number:
PPN: US 7-175887
Contract Number:
AC02-76ER03074
Resource Relation:
Patent File Date: 31 Mar 1988
Research Org:
Yale University
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; IONIZATION CHAMBERS; DESIGN; DETECTION; IONIZATION; IONIZING RADIATIONS; MEASURING METHODS; XENON; ELEMENTS; FLUIDS; GASES; MEASURING INSTRUMENTS; NONMETALS; RADIATION DETECTORS; RADIATIONS; RARE GASES; 440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments