Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system
Patent
1996-02-28
1997-08-12
Porta, David P.
Radiant energy
Invisible radiant energy responsive electric signalling
Semiconductor system
250361R, G01T 120
Patent
active
056568177
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.
REFERENCES:
patent: 4127499 (1978-11-01), Chen et al.
patent: 5276332 (1994-01-01), Marteau et al.
patent: 5466930 (1995-11-01), Schlenoff
Ming Li and Joseph B. Schlenoff, Ion Exchange Using a Scintillating Polymer with a Charged Surface, 1994, Tallahassee, Florida.
Copy of Advertising Brochure prepared by Quantrad Sensor, "Quantrad System 100 Liquid Analyzer for High-Resolution Alpha Spectroscopy", undated, Santa Clara, CA.
Bower Kenneth E.
Weeks Donald R.
Eklund William A.
Hanig Richard
Porta David P.
The Reents of the University of California
Wyrick Milton D.
LandOfFree
Radioactive ion detector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radioactive ion detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radioactive ion detector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-162015