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Accuracy study of computer tomography method for radiometric density meter
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SYSNO ASEP 0364062 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Accuracy study of computer tomography method for radiometric density meter Tvůrce(i) Krupička, Jan (UH-J) SAI, RID
Matoušek, Václav (UH-J) ORCID, SAI, RIDZdroj.dok. 15th International Conference on Transport and Sedimentation of Solid Particles. - Wroclaw : Wroclaw University of Environmental and Life Sciences, 2011 / Sobota J. - ISBN 978-83-62633-16-6 Rozsah stran s. 203-211 Poč.str. 9 s. Akce International Conference on Transport and Sedimentation of Solid Particles /15./ Datum konání 06.09.2011-09.09.2011 Místo konání Wroclaw Země PL - Polsko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. PL - Polsko Klíč. slova gamma-ray measurement ; slurry flow ; concentration distribution Vědní obor RIV BK - Mechanika tekutin CEP GA103/09/0383 GA ČR - Grantová agentura ČR CEZ AV0Z20600510 - UH-J (2005-2011) UT WOS 000391415100017 Anotace The paper deals with the question of how to obtain an accurate density distribution in a cross section of a slurry pipe using a gamma-ray radiometric device adapted for tomography purposes. New radiometric devices at Institute of Hydrodynamics in Prague are presented and basic principles of a measuring method are given. A scatter of a gamma-ray beam and errors in beam-position reading are identified as major factors reducing accuracy of results, particularly in the region near the pipe wall. A numerical simulation was performed to investigate a relation between a standard deviation of the evaluated density and the total measuring time. Only qualitative conclusions can be drawn from the simulation results, however the results demonstrate clearly an importance of a suitable geometrical setup for an experiment using the tomography method. Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2012
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