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Title: Ionization chamber

Abstract

An ionization chamber has separate drift and detection regions electrically isolated from each other by a fine wire grid. A relatively weak electric field can be maintained in the drift region when the grid and another electrode in the chamber are connected to a high voltage source. A much stronger electric field can be provided in the detection region by connecting wire electrodes therein to another high voltage source. The detection region can thus be operated in a proportional mode when a suitable gas is contained in the chamber. High resolution output pulse waveforms are provided across a resistor connected to the detection region anode, after ionizing radiation enters the drift region and ionize the gas.

Inventors:
 [1]
  1. (Port Jefferson Station, NY)
Issue Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY
OSTI Identifier:
863872
Patent Number(s):
4264816
Assignee:
United States of America as represented by United States (Washington, DC) BNL
DOE Contract Number:  
EY-76-C-02-0016
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ionization; chamber; separate; drift; detection; regions; electrically; isolated; fine; wire; grid; relatively; weak; electric; field; maintained; region; electrode; connected; voltage; source; stronger; provided; connecting; electrodes; therein; operated; proportional; mode; suitable; gas; contained; resolution; output; pulse; waveforms; resistor; anode; ionizing; radiation; enters; ionize; electrically isolated; voltage source; output pulse; electric field; ionizing radiation; ionization chamber; relatively weak; suitable gas; wire grid; electrically isolate; fine wire; pulse waveforms; pulse waveform; /250/313/

Citation Formats

Walenta, Albert H. Ionization chamber. United States: N. p., 1981. Web.
Walenta, Albert H. Ionization chamber. United States.
Walenta, Albert H. Thu . "Ionization chamber". United States. https://www.osti.gov/servlets/purl/863872.
@article{osti_863872,
title = {Ionization chamber},
author = {Walenta, Albert H.},
abstractNote = {An ionization chamber has separate drift and detection regions electrically isolated from each other by a fine wire grid. A relatively weak electric field can be maintained in the drift region when the grid and another electrode in the chamber are connected to a high voltage source. A much stronger electric field can be provided in the detection region by connecting wire electrodes therein to another high voltage source. The detection region can thus be operated in a proportional mode when a suitable gas is contained in the chamber. High resolution output pulse waveforms are provided across a resistor connected to the detection region anode, after ionizing radiation enters the drift region and ionize the gas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

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