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Author Belyaev, Yu. I.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language Russian
Subject Keyword CHEMISTRY ♦ ATOMS ♦ CAMERAS ♦ CARRIERS ♦ CONFIGURATION ♦ CURRENTS ♦ DISTILLATION ♦ DISTRIBUTION ♦ ELECTRIC ARCS ♦ ELEMENTS ♦ EMISSION ♦ EVAPORATION ♦ GAMMA RADIATION ♦ HIGH TEMPERATURE ♦ IMPURITIES ♦ LEAD ♦ LIGHT ♦ MEASURED VALUES ♦ PLASMA ♦ QUALITATIVE ANALYSIS ♦ QUANTITY RATIO ♦ RADIOISOTOPES ♦ SENSITIVITY ♦ SHIELDING ♦ SPECTROSCOPY ♦ URANIUM ♦ USES
Abstract Active isotope distribution in the plasma was recorded in gamma rays by means of a pin-hole camera (cameraobscura) made of lead. The spatial distribution in the d-c arc plasma of atoms of various elements was proved to be different and to depend on volatility of elements. The causes of the effect of the carrier on the sensitivity of spectrochemical determination of impurities in uranium were ascertained. A symmetrical dome-like distribution of the atoms in the space of the arc, with a sharp maximum in the center is characteristic of the carrier, irrespective of the method of carrier introduction into the analytical gap of the arc. The carrier affects only the distribution of the elements in analytical gap of the source and brings about forced concentration of impurities in the central region of plasma in accordance with carriers distribution. The effect of the carrier is not of a selective nature. It may be considerably less when large amounts of elements with a spatial atom distribution differing from that of the carrier are present in the sample. (tr-auth)
Educational Use Research
Learning Resource Type Article
Publisher Date 1958-07-01
Journal Zhur. Anal. Khim.
Volume Number 13
Organization Vernadskii Inst. of Geochemistry and Analytical Chemistry, Moscow


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