پديد آورنده :
شريفي، مريم
عنوان :
امواج الكتروستاتيك در پلاسماي نافزونور مغناطيده
گرايش تحصيلي :
فيزيك هسته اي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان،دانشكده مهندسي شيمي
صفحه شمار :
يازده،92ص.: نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
اكبر پروازيان
استاد مشاور :
بهروز ميرزا، ظفرالله كلانتري
تاريخ نمايه سازي :
94/1/29
استاد داور :
حسين عباسي، حسين حكيمي پژوه،كيوان آقابابائي
كد ايرانداك :
ID738 دكتري
چكيده انگليسي :
Electrostatic waves in a nonextensive magnetized plasma Maryam Shari m shari @ph iut ac ir 2015 Department of Physics Isfahan University of Technology Isfahan 84156 83111 Iran Supervisor Dr Akbar Parvazian parvazin@cc iut ac ir Advisor Prof Behrouz Mirza b mirza@cc iut ac ir Advisor Dr S Zafarollah Kalantari zafar@cc iut ac ir Keywords Electrostatic waves Magnetized plasma Nonextensive statistics Stimulated Ramanscattering Bernstein waves AbstractIn this thesis the parallel and perpendicular propagation of electrostatic waves in a magnetized plasmais investigated in the context of nonextensive q distribution of Tsallis statistics Logically the proper ties of the electrostatic waves in a nonextensive plasma are signi cantly modi ed in comparison withthat of discussed in the Maxwellian plasmas because of the system under consideration is essentiallya plasma system in a nonequilibrium stationary state with inhomogeneous temperature For the parallel propagation the generalized dispersion relations and Landau damping of electronplasma waves and ion acoustic waves are expressed as functions of q parameter which quanti esthe degree of nonextensivity of the system It is shown that by decreasing the nonextensivity indexq which corresponds to a plasma with excess superthermal particles the frequency phase velocityand group velocity of electron plasma waves and also ion acoustic waves increase In particular theincreased numbers of superthermal particles and law velocity particles can respectively explain thestrengthened and weakened modes of Landau damping for electron plasma and ion acoustic waves Furthermore stimulated Raman scattering in a nonextensive plasma is analytically and numericallystudied and generalized wavenumbers and growth rates in both backward and forward scattering arederived in terms of q parameter For perpendicular propagation the dispersion relation of Bernestein waves is derived in nonextensiveplasmas It is shown that the generalized dispersion relation signi cantly depends on the q parameter
استاد راهنما :
اكبر پروازيان
استاد مشاور :
بهروز ميرزا، ظفرالله كلانتري
استاد داور :
حسين عباسي، حسين حكيمي پژوه،كيوان آقابابائي
