{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-XW9KMEJL/b9cf0129-9e29-44a1-aebc-60642dc05f59/HTML","dcterms:extent":"26 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-XW9KMEJL/1bf7dd29-2b0e-4c4f-ab49-c30f8bedf002/PDF","dcterms:extent":"196 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-XW9KMEJL/46e925fa-d24d-4e14-8a34-76a1ae63beaa/TEXT","dcterms:extent":"23 KB"}],"edm:TimeSpan":{"@rdf:about":"2000-2024","edm:begin":{"@xml:lang":"en","#text":"2000"},"edm:end":{"@xml:lang":"en","#text":"2024"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-XW9KMEJL","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-ihg6vo21"},{"@xml:lang":"sl","#text":"Materiali in tehnologije"}],"dcterms:issued":"2011","dc:creator":"Mozetič, Miran","dc:format":[{"@xml:lang":"sl","#text":"letnik:45"},{"@xml:lang":"sl","#text":"številka:5"},{"@xml:lang":"sl","#text":"str. 457-462"}],"dc:identifier":["ISSN:1580-2949","COBISSID:881322","URN:URN:NBN:SI:doc-XW9KMEJL"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"sl","#text":"Debyeva dolžina"},{"@xml:lang":"sl","#text":"gostota plazme"},{"@xml:lang":"sl","#text":"Langmuirjeva sonda"},{"@xml:lang":"sl","#text":"temperatura elektronov"},{"@xml:lang":"sl","#text":"vodikova plazma"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"Characterization of extremely weakly ionized hydrogen plasma with a double Langmuir probe| Karakterizacija šibko ionizirane vodikove plazme z dvojno Langmuirjevo sondo|"},"dc:description":[{"@xml:lang":"sl","#text":"Basic parameters of hydrogen plasma created in a large discharge chamber were determined using a double Langmuir probe. Plasma was created in a Pyrex cylinder with the diameter of 25 cm and the height of 80 cm by an antenna connected to a RF generator operating at the frequency of 27.12 MHz and the power of about 200 W. The antenna was a copper coil of 4 turns. The discharge chamber was pumped with an oil diffusion pump with the nominal pumping speed of 600 L/s backed by a two slage rotary pump with the pumping speed of 4.4 x 10sup{-3} msup3 ssup{-1}. The ultimate pressure of about 2 x 10sup{-3} Pa was obtained in the vacuum system after pumping for few hours. A dobule Langmuir probe was galvanic separated from the mains and placed into the centre of the discharge chamber. The probe was made from 2 tungsten rods with a diameter of 1.2 mm and separated for 2 cm. The length of un-insulated part of the rods was 17.5 mm. Plasma parameters were measured at different pressures between 0.4 and 7.2 Pa. The electron temperature reached the maximumof about kTsube = 3.5 eV at the pressure of 1 Pa. The plasma density was slowly decreasing with increasing pressure and was of the order of 10sup{15} msup{-3}, and the Debve length was rather constant at about 2 x 10sup{-4} m. The results were explaned by characteristics of an electrode less RF discharge in the E mode"},{"@xml:lang":"sl","#text":"Z Langmuirjevo sondo smo določali parametre vodikove plazme, ustvarjene v velikem plazemskem reaktorju. Ta je bil narejen iz cilindrične cevi iz stekla pyrex premera 25 cm in višine 80 cm. Plazmo smo vzbujali z anteno, povezano z RF-generatorjem s frekvenco 27,12 MHz in močjo 200 W. Antena je bila narejena iz bakrene tuljave s 4 ovoji. Razelektritveno komoro smo črpali z difuzijsko črpalko z nazivno črpalno hitrostjo 600 L/s in povezano z dvostopenjsko rotacijsko predčrpalko s črpalno hitrostjo 4,4 x 10na{-3} mna3 sna{-1}. Po nekajurnem črpanju smo dosegli končni tlak 2 x 10na{-3} Pa. Dvojna Langmuirjeva sonda je bila galvansko ločena od omrežja in vstavljena v sredino razelektritvene komore. Sonda je bila narejena iz dveh volframovih palic premera 1,2 mm, ki sta bili med seboj oddaljeni 2 cm. Dolžina neizoliranega dela palic je bila 17,5 mm. Parametre plazme smo merili pri tlakih med 0,4 Pa in 7,2 Pa. Temperatura elektronov je dosegla maksimum okoli kTspodaje = 3,5 eV pri tlaku 1 Pa. Gostota plazme je počasi padala z naraščajočim tlakom in je bila reda 10na{15} mna{-3}. Debyeva dolžina je bila dokaj konstantna okoli 2 x 10na{-4} m. Rezultate smo razložili z značilnostmi brezelektrodne RF-razelektritve v E-načinu"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:DOC-XW9KMEJL","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-XW9KMEJL"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-XW9KMEJL/1bf7dd29-2b0e-4c4f-ab49-c30f8bedf002/PDF"},"edm:rights":{"@rdf:resource":"http://rightsstatements.org/vocab/InC/1.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:DOC-XW9KMEJL/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-XW9KMEJL"}}}}