Radiometric method for determining concentration of naturally occurring isotopes and device therefor

Patent · Tue Oct 09 00:00:00 EDT 1984

OSTI ID:5978735

Yakubovich, S L; Gerling, V E; Golubnichy, V V; Kotsen, M E; Stepanov, J N

The proposed method essentially consists in that a sample of a substance is placed between two scintillators in immediate contact therewith whereupon said sample is hermetically sealed. Arranged in close proximity to each scintillator is a photomultiplier tube recording ionizing ..cap alpha..- and b-radiation. A selector is utilized to select pulses corresponding to ..cap alpha..- and b-particles, and delayed coincidence circuits of a recording element separate and record b-..cap alpha.. and ..cap alpha..-..cap alpha.. cascade pairs of delayed coincidences of RaC, ThC, and AcA radionuclides. Flows are measured twice at a predetermined time interval to account for emanation build-up tendency and concentration of isotopes of radium is determined from a formula.

• Assignee: Vsesojuzny Nauchnoissledovatelsky Institut Miniralnogo Syria (Union of Soviet Socialist Republics)
• Patent Number(s): US 4476388
• OSTI ID: 5978735
• Resource Relation: Patent Priority Date: Priority date 22 Jan 1982, Union of Soviet Socialist Republics (USSR); Other Information: PAT-APPL-341750
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
58 GEOSCIENCES
GEOLOGIC DEPOSITS
RADIOMETRIC SURVEYS
RADIOISOTOPES
NATURAL OCCURRENCE
SCINTILLATION COUNTERS
RADIUM
ACTINIUM
AIR POLLUTION
ALPHA PARTICLES
BETA PARTICLES
DECAY
EXPLORATION
GEOCHEMISTRY
PHOTOMULTIPLIERS
RADIATION MONITORING
RADIUM CHLORIDES
RECORDING SYSTEMS
THORIUM CHLORIDES
WATER POLLUTION
ACTINIDE COMPOUNDS
ACTINIDES
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
CHARGED PARTICLES
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
ELEMENTS
GEOPHYSICAL SURVEYS
HALIDES
HALOGEN COMPOUNDS
ISOTOPES
MEASURING INSTRUMENTS
METALS
MONITORING
PHOTOTUBES
POLLUTION
RADIATION DETECTORS
RADIUM COMPOUNDS
SURVEYS
THORIUM COMPOUNDS
440105* - Radiation Instrumentation- Radiometric Instruments- (-1987)
580203 - Geophysics- Geophysical Survey Methods- (1980-1989)