Please use this identifier to cite or link to this item: https://open.uns.ac.rs/handle/123456789/20464
DC FieldValueLanguage
dc.contributor.advisorSavić Igor-
dc.contributor.advisorIvković Milivoje-
dc.contributor.authorStankov Biljana-
dc.contributor.otherDjurović Stevica-
dc.contributor.otherSavić Igor-
dc.contributor.otherIvković Milivoje-
dc.contributor.otherObradović Bratislav-
dc.contributor.otherGavanski Lazar-
dc.date.accessioned2020-12-13T14:44:43Z-
dc.date.available2020-12-13T14:44:43Z-
dc.date.issued2020-08-03-
dc.identifier.urihttps://open.uns.ac.rs/handle/123456789/20464-
dc.description.abstract<p>Opisani&nbsp; su&nbsp; detalji&nbsp; konstrukcije&nbsp; novog&nbsp; izvora&nbsp; plazme, u impulsnom režimu, konstruisanog za&nbsp; potrebe ekscitacija linija berilijuma u&nbsp; prisustvu berilijumske&nbsp; pra&scaron;ine.&nbsp; Konstrukcija&nbsp; izvora&nbsp; je ostvarena&nbsp; na&nbsp; takav&nbsp; način&nbsp; da&nbsp; je&nbsp; sprečeno prodiranje&nbsp; čestica&nbsp; pra&scaron;ine&nbsp; u&nbsp; atmosferu&nbsp; laboratorije.&nbsp; Opisane&nbsp; su&nbsp; dodatne&nbsp; 2&nbsp; cevi&nbsp; za pražnjenje&nbsp; konstruisane&nbsp; od&nbsp; Al2O3 i&nbsp; SiO 2 . Pronađeni&nbsp; su&nbsp; i&nbsp; opisani&nbsp; optimalni&nbsp; uslovi&nbsp; za&nbsp; rad<br />izvora&nbsp; plazme.&nbsp; Vrednosti&nbsp; elektronske&nbsp; koncentracije,&nbsp; određene&nbsp; nakon&nbsp; maksimuma<br />struje,&nbsp; kori&scaron;ćenjem&nbsp; vodonikove&nbsp; balmer&nbsp; beta linije,&nbsp; kreću&nbsp; se&nbsp; u&nbsp; opsegu&nbsp; 1,16-9,2&nbsp; ∙10<br />22&nbsp; m -3 . Elektronska temperatura je određena&nbsp; na&nbsp; osnovu relativnih&nbsp; intenziteta&nbsp; linija&nbsp; dva&nbsp; uzastopna jonizaciona&nbsp; stanja&nbsp; istog&nbsp; elementa&nbsp; i&nbsp; kreće&nbsp; se&nbsp; u opsegu&nbsp; 10&nbsp; 500-15&nbsp; 500&nbsp; K.&nbsp; Prikazane&nbsp; su snimljene&nbsp; linije&nbsp; berilijuma,&nbsp; osim&nbsp; rezonantnih. Dato&nbsp; je&nbsp; poređenje&nbsp; snimljenih&nbsp; linija&nbsp; sa postojećim&nbsp; teorisjkim&nbsp; podacima.&nbsp; Dve&nbsp; linije berilijuma&nbsp; koje&nbsp; se&nbsp; pojavljuju&nbsp; sa&nbsp; zabranjenom komponentom su prikazane prvi put. Pokazano je&nbsp; da&nbsp; postoji&nbsp; tipičan&nbsp; trend&nbsp; zavisnosti&nbsp; odnosa dozvoljene&nbsp; i&nbsp; zabranjene&nbsp; komponente,&nbsp; kao&nbsp; i rastojanja&nbsp; između&nbsp; položaja&nbsp; maksimuma intenziteta ove dve komponente, od elektronske koncentracije,&nbsp; koji&nbsp; se&nbsp; javlja&nbsp; kod&nbsp; linija&nbsp; sa zabranjenim&nbsp; komponentama,&nbsp;&nbsp;&nbsp; &scaron;to&nbsp; govori&nbsp; o<br />mogućnosti ove linije za primenu u dijagnostici plazme.</p>sr
dc.description.abstract<p>Construction&nbsp; details&nbsp; of&nbsp; new&nbsp; plasma&nbsp; source,&nbsp; running in pulsed regime,&nbsp; for beryllium spectral line&nbsp; studies,&nbsp; in&nbsp; the&nbsp; presence&nbsp; of&nbsp; beryllium&nbsp; dust particles are presented.&nbsp; The construction of the source&nbsp; was&nbsp; realised&nbsp; in&nbsp; such&nbsp; a&nbsp; way&nbsp; that&nbsp; it prevented&nbsp; the&nbsp; ingress&nbsp; of&nbsp; dust&nbsp; particles&nbsp; into&nbsp; the laboratory&nbsp; atmospher.&nbsp; Construction&nbsp; details&nbsp; and<br />testing&nbsp; of&nbsp; BeO&nbsp; discharge&nbsp; tube&nbsp; in&nbsp; comparison with&nbsp; SiO2 and&nbsp; Al2O3 discharge&nbsp; tubes&nbsp; are&nbsp; presented,&nbsp; also.&nbsp; Optimal&nbsp; conditions&nbsp; for&nbsp; plasma source operation&nbsp; and beryllium line studies are found.&nbsp; The&nbsp; electron&nbsp; density&nbsp; measured&nbsp; after discharge current maximum is determined from&nbsp; the peak separation of the hydrogen Balmer beta<br />spectral&nbsp; line,&nbsp; and&nbsp; the&nbsp; electron&nbsp; temperature&nbsp; is&nbsp; determined&nbsp; from&nbsp; the&nbsp; ratios&nbsp; of&nbsp; the&nbsp; relative&nbsp; intensities&nbsp; of&nbsp; Be&nbsp; spectral&nbsp; lines&nbsp; emitted&nbsp; from successive&nbsp; ionized&nbsp; stages&nbsp; of&nbsp; atoms.&nbsp; Maximum values&nbsp; of&nbsp; electron&nbsp; density&nbsp; and&nbsp; temperature&nbsp; are measured&nbsp; to&nbsp; be&nbsp; 9.3∙1022 m -3 and&nbsp; 16&nbsp; 800&nbsp; K, respectively.&nbsp; The&nbsp; recorded&nbsp; spectral&nbsp; lines&nbsp; of beryllium,&nbsp; other&nbsp; then&nbsp; resonant&nbsp; lines,&nbsp; are&nbsp; presented. The lines&nbsp; with forbidden component are&nbsp; described&nbsp; for&nbsp; the&nbsp; first&nbsp; time.&nbsp; The&nbsp; functional dependence of the wavelength separation range and&nbsp; peak&nbsp; intensity&nbsp; ratio&nbsp; of&nbsp; these&nbsp; lines&nbsp; upon<br />electron&nbsp; number&nbsp; density&nbsp; suggests&nbsp; the&nbsp; complex profile of the forbidden and allowed line, which can be used for diagnostics of low-temperature beryllium containing plasmas.</p>en
dc.language.isosr (latin script)-
dc.publisherUniverzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadusr
dc.publisherUniversity of Novi Sad, Faculty of Sciences at Novi Saden
dc.sourceCRIS UNS-
dc.source.urihttp://cris.uns.ac.rs-
dc.subjectOptical emission spectroscopy, plasma sources, beryllium spectral lines, beryllium dust, spectral lines with forbidden comoponentsen
dc.subjectOptička emisiona spektroskopija, izvori plazme, spektralne linije berilijuma, berilijumska prašina, linije sa zabranjenim komponentamasr
dc.titleInvestigation of complex shapes of beryllium spectral lines in the presence of beryllium dusten
dc.titleIstraživanja kompleksnih oblika spektralnih linija berilijuma u prisustvu berilijumske prašinesr
dc.typeThesisen
dc.identifier.urlhttps://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija159065143207037.pdf?controlNumber=(BISIS)114644&fileName=159065143207037.pdf&id=15487&source=BEOPEN&language=enen
dc.identifier.urlhttps://www.cris.uns.ac.rs/record.jsf?recordId=114644&source=BEOPEN&language=enen
dc.identifier.externalcrisreference(BISIS)114644-
dc.source.institutionPrirodno-matematički fakultet u Novom Sadusr
item.grantfulltextnone-
item.fulltextNo Fulltext-
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