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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. 2 figs.

Inventors:
;
Publication Date:
Research Org.:
University of California
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
527754
Patent Number(s):
US 5,656,817/A/
Application Number:
PAN: 8-608,345; TRN: 97:016700
Assignee:
Univ. of California, Oakland, CA (United States) PTO; SCA: 440101; PA: EDB-97:126829; SN: 97001843798
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 12 Aug 1997
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; ALPHA DETECTION; BETA DETECTION; PLASTIC SCINTILLATION DETECTORS; CATIONS; ANIONS; ION EXCHANGE MATERIALS; VALENCE; RADIOACTIVE MATERIALS; DESIGN

Citation Formats

Bower, K.E., and Weeks, D.R.. Radioactive ion detector. United States: N. p., 1997. Web.
Bower, K.E., & Weeks, D.R.. Radioactive ion detector. United States.
Bower, K.E., and Weeks, D.R.. 1997. "Radioactive ion detector". United States. doi:.
@article{osti_527754,
title = {Radioactive ion detector},
author = {Bower, K.E. and Weeks, D.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. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1997,
month = 8
}