Accession Number : AD0667295

Title :   USE OF GAMMA-RAY SPECTROMETRY IN ANALYZING RADIOACTIVITY IN MARINE HYDROBIOLOGICAL SAMPLES,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Arzhanova,Z. A. ; Fedorov,A. F. ; Podymakhin,V. N.

Report Date : 19 MAR 1968

Pagination or Media Count : 9

Abstract : The report contains determinations of isotopic composition of radioactive contaminations in different marine hydrobiological samples by using a scintillation gamma-ray spectrometer consisting of a NaJ (Tl) crystal measuring 40 x 40 with a FEU-lS photomultiplier, a USh-10 wide-band amplifier and an AI-100-1 amplitude analyzer. A qualitative and quantitative analysis of the investigated samples was made. The basic objective of qualitative analysis was identification of individual isotopes. Quantitative spectral analysis involved spectral breakdown into individual lines and determining the areas under the photopeaks during the successive recording of individual spectral lines. (Author)

Descriptors :   (*MARINE BIOLOGY, GAMMA RAY SPECTROSCOPY), RADIOACTIVE ISOTOPES, OCEAN BOTTOM SAMPLING, CONTAMINATION, FALLOUT, NUCLEAR RADIATION SPECTROMETERS, SCINTILLATION COUNTERS, QUANTITATIVE ANALYSIS, CHEMICAL PROPERTIES, LINE SPECTRA, CALIBRATION, USSR

Subject Categories : Biological Oceanography
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE