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1. WO1996004571 - SCINTILLATION COUNTER

Publication Number WO/1996/004571
Publication Date 15.02.1996
International Application No. PCT/US1995/009627
International Filing Date 31.07.1995
IPC
G01T 1/204 2006.01
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16Measuring radiation intensity
20with scintillation detectors
204the detector being a liquid
CPC
G01T 1/204
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16Measuring radiation intensity
20with scintillation detectors
204the detector being a liquid
Applicants
  • PACKARD INSTRUMENT COMPANY, INC. [US/US]; 2200 Warrenville Road Downers Grove, IL 60615, US
Inventors
  • VALENTA, Robert, J.; US
Agents
  • RUDISILL, Stephen, G.; P.O. Box 4433 Houston, TX 77210, US
Priority Data
08/284,93802.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SCINTILLATION COUNTER
(FR) COMPTEUR A SCINTILLATION
Abstract
(EN)
A scintillation measurement system for measuring optical events produced by scintillators (19) in response to the radioactive decay of a constituent or constituents of a sample (10) to be measured comprises a sample support for positioning a sample in a sample well (11); a bismuth germanate (BGO) scintillation crystal (19), such as Bi4Ge3O12, located adjacent the sample well; a plurality of photodetectors (16, 18) located outside the bismuth germanate crystal (19) for detecting optical events occuring in the sample well (11) or in the bismuth germanate crystal (19) and converting those optical events into electrical pulses; and a pulse analyzing system (40) for receiving the electrical pulses from the photodetectors and determining whether such pulses represent alpha, beta or gamma events. This system can be used with samples containing alpha, beta or gamma emitters, or any combination thereof.
(FR)
Système de mesure par scintillation d'événements optiques produits par des scintillateurs (19) sous l'effet de désintégrations radioactives d'un ou de plusieurs constituants d'un échantillon (10) à analyser et comportant: un support permettant de positionner un échantillon (10) dans un puits (11); un cristal (19) scintillant de germanate de bismuth (BGO), du B4Ge3O12 par exemple, placé à proximité du puits; une série de photodétecteurs (16, 18) placés à l'extérieur du cristal (19) de germanate de bismuth et convertissant lesdits événements optiques en impulsions électriques; et un système (40) d'analyse des impulsions recevant lesdites impulsions et déterminant si elles correspondent à des événements de type alpha, bêta ou gamma. Ce système peut traiter des échantillons comportant des émetteurs alpha, bêta ou gamma ou leurs combinaisons.
Also published as
Latest bibliographic data on file with the International Bureau