Published 1989
| Version v1
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Viability utilization of one Se sup(75) source in the analysis of uranium, thorium and rare earths for use on energy dispersive x-ray fluorescence
Description
This work is a study about the viable utilization of one Se sup(75) source as an excitation source for the use of Energy Dispersive X-Ray Fluorescence (EDXRF), in the analysis of Uranium, Thorium and the Rare Earths. The following arrangement was build up: a HPGE detector, two Se sup(75) sources in 30 sup(0) positions of castle, deadtime of 5%. Using this arrangement the calibration curve for U and Th was measured and the angular correlation coeficient was r+ 0,999, and for the Rare Earths was superior r+ 0,960. The answer given for this system was considered very fine. (author)
Availability note (English)
MF available from INIS under the Report Number.Files
22054243.pdf
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Additional details
Additional titles
- Original title (Portuguese)
- Viabilidade da utilizacao de uma fonte de Se sup(75) na analise de uranio, torio e os elementos terras-raras, em fluorescencia por energia dispersiva de raios-x
Publishing Information
- Imprint Pagination
- 137 p.
- Report number
- INIS-BR--2449
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 22054243
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- RARE EARTHS; SELENIUM 75; THORIUM; URANIUM; USES; X-RAY FLUORESCENCE ANALYSIS
- Descriptors DEC
- ACTINIDES; BETA DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; EVEN-ODD NUCLEI; INTERMEDIATE MASS NUCLEI; ISOTOPES; METALS; NONDESTRUCTIVE ANALYSIS; NUCLEI; RADIOISOTOPES; SELENIUM ISOTOPES; X-RAY EMISSION ANALYSIS