A new surface resistance measurement method with ultrahigh sensitivity

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dc.contributor.authorLiang, Changnianen
dc.contributor.committeechairSundelin, Ronald M.en
dc.contributor.committeememberPhillips, Larryen
dc.contributor.committeememberJenkins, David A.en
dc.contributor.committeememberMo, Luke W.en
dc.contributor.committeememberZallen, Richard H.en
dc.contributor.departmentPhysicsen
dc.date.accessioned2014-03-14T21:23:02Zen
dc.date.adate2005-11-10en
dc.date.available2014-03-14T21:23:02Zen
dc.date.issued1993-05-05en
dc.date.rdate2005-11-10en
dc.date.sdate2005-11-10en
dc.description.abstractA superconducting niobium triaxial cavity has been designed and fabricated to study residual surface resistance of planar superconducting materials. Unlike many other structures where the test samples are placed in strong magnetic field positions, the edge of a 25.4 mm or larger diameter sample in the triaxial cavity is located outside the strong field region. Therefore, the edge effects and possible losses between the thin film and the substrate have been minimized in this design, ensuring that the induced RF losses are intrinsic to the test material. The fundamental resonant frequency of the cavity is 1.5 GHz, the same as the working frequency of CEBAF cavities. The cavity has a compact size compared to its TE₀₁₁ counterpart, which makes it more sensitive to the sample's loss.en
dc.description.degreePh. D.en
dc.format.extentxvi, 167 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-11102005-141104en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11102005-141104/en
dc.identifier.urihttp://hdl.handle.net/10919/40299en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V856_1993.L536.pdfen
dc.relation.isformatofOCLC# 28529037en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1993.L536en
dc.subject.lcshCalorimetryen
dc.subject.lcshSuperconductivityen
dc.subject.lcshSuperconductors -- Mathematical modelsen
dc.titleA new surface resistance measurement method with ultrahigh sensitivityen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplinePhysicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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