THE EFFECT OF THE MATERIAL COMPOSITION OF URANIUM ORES ON THE SCINTILLATION GAMMA SPECTRUM (in Russian)
Journal Article
·
· Atomnaya Energ.
OSTI ID:4843707
A 128-channel, differential gamma scintillation spec- trometer with a 30 x 10 mm NaI(Tl) crystal was standardized by means of Hg/sup 203/, Cs/sup 137/ Zn/sup 65/, Co/sup 6/< s0>s, Na/sup 24/ and calibrated radium samples. In order to imitate natural conditions, the uranium ore was poured into steel cylinders and held for at least 30 days in order to obtain equilibrium between radium and its daughter radon. The gamma spectra show that the absorption of the soft gamma radiation increases with increasing atomic number Z. Curves normalized with respect to Z/sub eff/= 27 show that 0.05 to 0.10 Mev radiation is absorbed by a factor of 1.5 to 2.0 less in minerals with Z/sub eff/ = 15 and 19 as compared with the absorption in a mineral with Z/sub eff/ = 27. The curves are the same for energies above 510 kev. The magnitude of Z/sub eff/ had less effect on the integral spectrum than it had on the differential spectrum. (TTT)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-027561
- OSTI ID:
- 4843707
- Journal Information:
- Atomnaya Energ., Journal Name: Atomnaya Energ. Vol. Vol: 10
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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· Izvestiya Akademii Nauk, Seriya Fizicheskaya (U.S.S.R.) For English translation see Bull. Acad. Sci. USSR, Phys. Ser. (Engl. Transl.)
·
OSTI ID:4744519