SciTech Connect

Title: THE PRIMORDIAL TRANSURANIUM ISOTOPE IN NATURE (in Russian)

THE PRIMORDIAL TRANSURANIUM ISOTOPE IN NATURE In some young natural samples a primordial radioactive alpha -emitter is obtained. The alpha -spectrum main line extends from 4.2 to 4.6 Mev and the gamma rays have the energy in the region: 90 to 250 kev. This isotope, apparently, is Cm/sup 247/. Decay products of Am/sup 243/ and Pu/sup 239/ accompany it. The Cm/sup 247/ content in natural minerals is about n x 10/sup -8/ % and Cm/sup 247//U/sup 238/ = n x 10/sup -2/ (activity units). The decay period of the isotope is estimated as 2.5 x 10/sup 8/ years. (auth)
Authors: ;
Publication Date:
OSTI Identifier:OSTI ID: 4748393
Resource Type:Journal Article
Resource Relation:Journal Name: Geokhimiya (U.S.S.R.) For English translation 1956-63 see Geochemistry (USSR); Journal Volume: Vol: No. 1; Other Information: Orig. Receipt Date: 31-DEC-63
Research Org:Geological Inst., Moscow
Country of Publication:Country unknown/Code not available
Language:Russian
Subject: GEOLOGY, MINERALOGY, AND METEOROLOGY; ALPHA DECAY; ALPHA PARTICLES; AMERICIUM 243; CURIUM 247; DISTRIBUTION; ENERGY; ENERGY RANGE; HALF-LIFE; MINERALS; PLUTONIUM 239; QUANTITY RATIO; RADIOACTIVITY; SPECTRA; URANIUM 238