Comparison of detectors with respect to the lower limit of determining the activity of gamma-emitting nuclides

Journal Article · Sat Feb 01 04:00:00 EST 1986 · Sov. At. Energy (Engl. Transl.); (United States)

OSTI ID:5529471

Shcherbakov, B Y; Myshlyaukin, V I

Since the number of tasks in environmental monitoring is increasing, an experimental comparison of the capabilities of various detectors with respect to the lower limit of activity determinations on gamma-emitting nuclides is of interest. Measurements were made with a gamma spectrometer provided with an 800-channel analyzer and detectors of various types and dimensions. The liquid samples were prepared from a radioactive Cs-137 standard solution of class 1 with specific mass activity indicated in the specification data with an error of 3% on the 0.95 confidence level. The DGDK-32A germanium detector with a passive 10-cm-thick lead shield was used to establish experimentally the lower limit of determining the bulk activities of nuclides in a liquid 50-ml sample which was placed directly on the upper lid of the detector; the nuclides Na-24, Mn-54, Co-60, Zn-65, Zr-95, Nb-95, Ru-103, Rh-106, I-131, Cs-137, and Ce-144, which are very important with respect to environmental protection, were considered.

• OSTI ID: 5529471
• Journal Information: Sov. At. Energy (Engl. Transl.); (United States), Journal Name: Sov. At. Energy (Engl. Transl.); (United States) Vol. 59:2; ISSN SATEA
• Country of Publication: United States
• Language: English

Related Subjects

440103 -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
500300* -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORING
AIR POLLUTION MONITORS
ALKALI METAL ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CERIUM 144
CERIUM ISOTOPES
CESIUM 137
CESIUM ISOTOPES
COBALT 60
COBALT ISOTOPES
COMPARATIVE EVALUATIONS
DAYS LIVING RADIOISOTOPES
DETECTION
ELECTRON CAPTURE RADIOISOTOPES
ELECTRONIC EQUIPMENT
EQUIPMENT
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
GAMMA DETECTION
GAMMA SPECTROMETERS
GE SEMICONDUCTOR DETECTORS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IODINE 131
IODINE ISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MANGANESE 54
MANGANESE ISOTOPES
MEASURING INSTRUMENTS
MINUTES LIVING RADIOISOTOPES
MONITORING
MONITORS
MULTI-CHANNEL ANALYZERS
NAI DETECTORS
NIOBIUM 95
NIOBIUM ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PERFORMANCE TESTING
PULSE ANALYZERS
RADIATION DETECTION
RADIATION DETECTORS
RADIATION MONITORING
RADIATION MONITORS
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RHODIUM 106
RHODIUM ISOTOPES
RUTHENIUM 103
RUTHENIUM ISOTOPES
SCINTILLATION COUNTERS
SECONDS LIVING RADIOISOTOPES
SEMICONDUCTOR DETECTORS
SENSITIVITY
SODIUM 24
SODIUM ISOTOPES
SOLID SCINTILLATION DETECTORS
SPECTROMETERS
TESTING
YEARS LIVING RADIOISOTOPES
ZINC 65
ZINC ISOTOPES
ZIRCONIUM 95
ZIRCONIUM ISOTOPES