THE USE OF RADIOLUMINESCENCE, INDUCED BY /cap alpha/-PARTICLES FROM POLONIUM-210, FOR THE ANALYSIS OF ORES AND MINERALS (in Russian)
Beta and gamma emitters induce a much weaker luminescence in ores and minerals than the same amount of alpha activity. Po/sup 210/ with a half-life of 138.3 days and an alpha emission energy of 5.3 Mev has only one gamma quantum for each lO/sup 5/ alpha emissions, and can be mounted as a covered source in a simple arrangement for the identification of minerals by the induced luminescence. Quantitative analyses can be performed by using a phototube to collect the light. Luminescence was observed in calcite, dolomite, fluorite, scheclite and beryl with a 1.8-curie source of Po/sup 210/. Since large amounts of beta or gamma activity are required to induce luminescence, the use of an alpha emitter simplifies the shielding requirements. The alpha source csn also be used to determine elements which enter into nuclear reactions with alpha particles ( alpha n; alpha , 2n eta). (TTT)
- Research Organization:
- Inst. of Mining, Academy of Sciences, USSR
- NSA Number:
- NSA-15-016918
- OSTI ID:
- 4019770
- Journal Information:
- Doklady Akad. Nauk S.S.S.R., Vol. Vol: 136; Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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Related Subjects
ALPHA PARTICLES
ALPHA SOURCES
ALUMINUM SILICATES
BERYL
BERYLLIUM SILICATES
CALCITE
CALCIUM CARBONATES
CALCIUM FLUORIDES
CALCIUM OXIDES
DOLOMITE
ELEMENTS
FLUORITE
INDUCTION
LUMINESCENCE
MAGNESIUM CARBONATES
MINERALS
NUCLEAR REACTIONS
ORES
PARTICLE SOURCES
POLONIUM 210
QUANTITATIVE ANALYSIS
RADIATIONS
RARE EARTHS
SCHEELITE
SHIELDING
TUNGSTATES
USES