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Title: Fan-less long range alpha detector

Abstract

A fan-less long range alpha detector which operates by using an electrical field between a signal plane and the surface or substance to be monitored for air ions created by collisions with alpha radiation. Without a fan, the detector can operate without the possibility of spreading dust and potential contamination into the atmosphere. A guard plane between the signal plane and the electrically conductive enclosure and maintained at the same voltage as the signal plane, reduces leakage currents. The detector can easily monitor soil, or other solid or liquid surfaces.

Inventors:
 [1];  [1]
  1. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
OSTI Identifier:
869291
Patent Number(s):
5311025
Assignee:
Regents of University of California (Oakland, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fan-less; range; alpha; detector; operates; electrical; field; signal; plane; surface; substance; monitored; air; created; collisions; radiation; fan; operate; possibility; spreading; dust; potential; contamination; atmosphere; guard; electrically; conductive; enclosure; maintained; voltage; reduces; leakage; currents; easily; monitor; soil; solid; liquid; surfaces; signal plane; leakage currents; conductive enclosure; electrical field; electrically conductive; alpha radiation; leakage current; alpha detector; range alpha; liquid surface; liquid surfaces; /250/

Citation Formats

MacArthur, Duncan W, and Bounds, John A. Fan-less long range alpha detector. United States: N. p., 1994. Web.
MacArthur, Duncan W, & Bounds, John A. Fan-less long range alpha detector. United States.
MacArthur, Duncan W, and Bounds, John A. Sat . "Fan-less long range alpha detector". United States. https://www.osti.gov/servlets/purl/869291.
@article{osti_869291,
title = {Fan-less long range alpha detector},
author = {MacArthur, Duncan W and Bounds, John A},
abstractNote = {A fan-less long range alpha detector which operates by using an electrical field between a signal plane and the surface or substance to be monitored for air ions created by collisions with alpha radiation. Without a fan, the detector can operate without the possibility of spreading dust and potential contamination into the atmosphere. A guard plane between the signal plane and the electrically conductive enclosure and maintained at the same voltage as the signal plane, reduces leakage currents. The detector can easily monitor soil, or other solid or liquid surfaces.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

Works referenced in this record:

An Electret Passive Environmental 222Rn Monitor Based on Ionization Measurement
journal, January 1988


Measurement of Potential Alpha Energy Concentration of Radon and Thoron Daughters Using an Electret Dosemeter
journal, July 1983


Electrets for Passive Radon Daughter Dosimetry
journal, January 1984


Passive Measurement of Radon and Thoron Using TLD Or SSNTD on Electrets
journal, January 1982