Mass counting of radioactivity samples

Patent · Tue Jan 25 04:00:00 EST 1977

OSTI ID:7116396

Oesterlin, D L; Obrycki, R F

A method and apparatus for concurrently counting a plurality of radioactive samples is claimed. The position sensitive circuitry of a scintillation camera is employed to sort electrical pulses resulting from scintillations according to the geometrical locations of scintillations causing those pulses. A scintillation means, in the form of a scintillating crystal material or a liquid scintillator, is positioned proximate to an array of radioactive samples. Improvement in the accuracy of pulse classification may be obtained by employing collimating means. If a plurality of scintillation crystals are employed to measure the iodine-125 content of samples, a method and means are provided for correcting for variations in crystal light transmission properties, sample volume, and sample container radiation absorption. 2 claims, 7 drawing figures.

• Assignee: G. D. Searle and Co.
• Patent Number(s): US 4005292
• OSTI ID: 7116396
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400103* -- Radiometric & Radiochemical Procedures-- (-1987)
BETA DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
CHEMICAL ANALYSIS
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
IODINE 125
IODINE ISOTOPES
ISOTOPES
MEASURING INSTRUMENTS
NUCLEI
ODD-EVEN NUCLEI
POSITION SENSITIVE DETECTORS
QUANTITATIVE CHEMICAL ANALYSIS
RADIATION DETECTORS
RADIOACTIVE MATERIALS
RADIOISOTOPES
SCINTILLATION COUNTING