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Title: Radioactive ion detector

Abstract

Apparatus for detecting the presence, in aqueous media, of substances which emit alpha and/or beta radiation and determining the oxidation state of these radioactive substances, that is, whether they are in cationic or anionic form. In one embodiment, a sensor assembly has two elements, one comprised of an ion-exchange material which binds cations and the other comprised of an ion-exchange material which binds anions. Each ion-exchange element is further comprised of a scintillation plastic and a photocurrent generator. When a radioactive substance to which the sensor is exposed binds to either element and emits alpha or beta particles, photons produced in the scintillation plastic illuminate the photocurrent generator of that element. Sensing apparatus senses generator output and thereby indicates whether cationic species or anionic species or both are present and also provides an indication of species quantity.

Inventors:
 [1];  [2]
  1. Los Alamos, NM
  2. Saratoga, CA
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
871093
Patent Number(s):
5656817
Application Number:
08/608345
Assignee:
Reents of University of California (Oakland, CA)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
radioactive; detector; apparatus; detecting; presence; aqueous; media; substances; emit; alpha; beta; radiation; determining; oxidation; cationic; anionic; form; embodiment; sensor; assembly; elements; comprised; ion-exchange; material; binds; cations; anions; element; scintillation; plastic; photocurrent; generator; substance; exposed; emits; particles; photons; produced; illuminate; sensing; senses; output; indicates; species; provides; indication; quantity; current generator; generator output; detector apparatus; change material; aqueous media; exchange material; beta radiation; sensing apparatus; beta particles; ionic species; ion-exchange material; radioactive substances; exchange element; ionic form; radioactive substance; active substance; beta particle; /250/

Citation Formats

Bower, Kenneth E, and Weeks, Donald R. Radioactive ion detector. United States: N. p., 1997. Web.
Bower, Kenneth E, & Weeks, Donald R. Radioactive ion detector. United States.
Bower, Kenneth E, and Weeks, Donald R. Wed . "Radioactive ion detector". United States. https://www.osti.gov/servlets/purl/871093.
@article{osti_871093,
title = {Radioactive ion detector},
author = {Bower, Kenneth E and Weeks, Donald R},
abstractNote = {Apparatus for detecting the presence, in aqueous media, of substances which emit alpha and/or beta radiation and determining the oxidation state of these radioactive substances, that is, whether they are in cationic or anionic form. In one embodiment, a sensor assembly has two elements, one comprised of an ion-exchange material which binds cations and the other comprised of an ion-exchange material which binds anions. Each ion-exchange element is further comprised of a scintillation plastic and a photocurrent generator. When a radioactive substance to which the sensor is exposed binds to either element and emits alpha or beta particles, photons produced in the scintillation plastic illuminate the photocurrent generator of that element. Sensing apparatus senses generator output and thereby indicates whether cationic species or anionic species or both are present and also provides an indication of species quantity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

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