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dc.contributor.advisorHirose, Akiraen_US
dc.creatorLivingstone, Stephenen_US
dc.date.accessioned2006-01-26T13:35:49Zen_US
dc.date.accessioned2013-01-04T04:24:42Z
dc.date.available2007-01-27T08:00:00Zen_US
dc.date.available2013-01-04T04:24:42Z
dc.date.created2005-12en_US
dc.date.issued2005-12-12en_US
dc.date.submittedDecember 2005en_US
dc.identifier.urihttp://hdl.handle.net/10388/etd-01262006-133549en_US
dc.description.abstractDensity fluctuations in high temperature fusion plasmas have been a central challenge to the development of fusion power. They are the cause of excessive anomalous losses from the plasma and are still not fully understood. A microwave scattering experiment is performed on the Saskatchewan Torus-Modified (STOR-M) tokamak for the first time to study these density fluctuations with wave-numbers in the range k = 5 /cm to 10 /cm. The fluctuations are found to follow k¦Ñs scaling consistent with ion drift waves; signatures of the electron temperature gradient (ETG) mode connected with anomalous electron losses are not detected. The fluctuation level in the STOR-M is measured to be ntilda/n ¡Ö 0.1 at a mean perpendicular wave-number of kperp ¡Ö 7 /cm and is reported for the first time. The fluctuation levels are inversely proportional to the energy confinement time suggesting that these fluctuations are driving anomalous particle and energy losses from the STOR-M. The system is now fully operational and this work paves the way for future experiments with this equipment.en_US
dc.language.isoen_USen_US
dc.subjectPlasmaen_US
dc.subjectmicrowave scatteringen_US
dc.subjectdensity fluctuationsen_US
dc.subjecttokamaken_US
dc.subjectETG modeen_US
dc.subjectITG modeen_US
dc.titleExperimental study of density fluctuations in the STOR-M tokamak by small-angle microwave scatteringen_US
thesis.degree.departmentPhysics and Engineering Physicsen_US
thesis.degree.disciplinePhysics and Engineering Physicsen_US
thesis.degree.grantorUniversity of Saskatchewanen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Science (M.Sc.)en_US
dc.type.materialtexten_US
dc.type.genreThesisen_US
dc.contributor.committeeMemberXiao, Chijinen_US
dc.contributor.committeeMemberManson, Alanen_US
dc.contributor.committeeMemberKasap, Safa O.en_US
dc.contributor.committeeMemberHussey, Glenn C.en_US
dc.contributor.committeeMemberBradley, Michael P.en_US


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