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Title: Ionizing radiation detector

Abstract

An ionizing radiation detector is provided which is based on the principle of analog electronic integration of radiation sensor currents in the sub-pico to nano ampere range between fixed voltage switching thresholds with automatic voltage reversal each time the appropriate threshold is reached. The thresholds are provided by a first NAND gate Schmitt trigger which is coupled with a second NAND gate Schmitt trigger operating in an alternate switching state from the first gate to turn either a visible or audible indicating device on and off in response to the gate switching rate which is indicative of the level of radiation being sensed. The detector can be configured as a small, personal radiation dosimeter which is simple to operate and responsive over a dynamic range of at least 0.01 to 1000 R/hr.

Inventors:
 [1]
  1. (Knoxville, TN)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
867564
Patent Number(s):
US 4963747
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ionizing; radiation; detector; provided; based; principle; analog; electronic; integration; sensor; currents; sub-pico; nano; ampere; range; fixed; voltage; switching; thresholds; automatic; reversal; time; appropriate; threshold; reached; nand; gate; schmitt; trigger; coupled; operating; alternate; visible; audible; indicating; device; response; rate; indicative; level; sensed; configured; personal; dosimeter; simple; operate; responsive; dynamic; 01; 1000; radiation sensor; radiation dosimeter; voltage switching; dynamic range; radiation detector; ionizing radiation; switching rate; personal radiation; indicating device; ampere range; voltage switch; automatic voltage; /250/

Citation Formats

Thacker, Louis H. Ionizing radiation detector. United States: N. p., 1990. Web.
Thacker, Louis H. Ionizing radiation detector. United States.
Thacker, Louis H. Mon . "Ionizing radiation detector". United States. https://www.osti.gov/servlets/purl/867564.
@article{osti_867564,
title = {Ionizing radiation detector},
author = {Thacker, Louis H.},
abstractNote = {An ionizing radiation detector is provided which is based on the principle of analog electronic integration of radiation sensor currents in the sub-pico to nano ampere range between fixed voltage switching thresholds with automatic voltage reversal each time the appropriate threshold is reached. The thresholds are provided by a first NAND gate Schmitt trigger which is coupled with a second NAND gate Schmitt trigger operating in an alternate switching state from the first gate to turn either a visible or audible indicating device on and off in response to the gate switching rate which is indicative of the level of radiation being sensed. The detector can be configured as a small, personal radiation dosimeter which is simple to operate and responsive over a dynamic range of at least 0.01 to 1000 R/hr.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1990},
month = {Mon Jan 01 00:00:00 EST 1990}
}

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