پديد آورنده :
فرخ پور ، حسين
عنوان :
طيف سنجي الكترون لايه- داخلي اتمها و مولكولهاي دو اتمي با قدرت تفكيك بالا : مولكول اكسيژن در حالت الكتروني نيمه پايدار و اتم سزيم در حالت گازي
گرايش تحصيلي :
﴿ شيمي فيزيك ﴾
محل تحصيل :
اصفهان : دانشگاه صنعتي اصفهان ، دانشكده شيمي
صفحه شمار :
سيزده، 188، [II] ص. : مصور ، جدول ، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
رابرت ريچتر، محمود تبريزچي
استاد مشاور :
لورنزو آوالدي
توصيفگر ها :
ديناميك هسته , فوتو الكترون , تابش سينكروترون
استاد داور :
مهدي صفا، حسن سبزيان، حسن روضاتيان، محمد هادي زمان پور
تاريخ ورود اطلاعات :
1396/02/23
كد ايرانداك :
ID147 دكتري
چكيده فارسي :
به فارسي و انگليسي و قابل رؤيت در نسخه هاي ديجيتالي
چكيده انگليسي :
Abstract The K shell excitation and ionization of metastable O2 a1 g molecule has beenstudied using direct photoelectron spectroscopy and resonant Auger spectroscopy The K edge photoionization spectra of metastable O2 a1 g molecule were investigated at highresolution These spectra show a better resolution in comparison with the previouslypublished data Metastable molecules were prepared on line using a microwave discharge The 2 state of the core hole ion has been identified following ionization from the a1 gstate From the analysis of the spectra the energetic and structural information of the 2 4 2 states of the core hole ion was obtained and the vibrational frequency of the 2 state of the core hole ion was determined for the first time The first resonant Auger spectraof molecular oxygen following core excitation of the metastable O2 a1 g molecule to the1 u core excited state have been recorded The high beamline and analyzer resolution hasallowed the separation of the singlet decay from the dominant triplet excitation of groundstate oxygen Fundamental interference phenomena were observed and are discussed in theframework of the X ray Raman Scattering Theory The resonant Auger spectra havebeen used to spectroscopically characterize the core excited 1 u state In this study thestructural information of the core excited 1 u state was obtained for the first time Whencompared with its triplet counterpart the singlet state shows a significant lengthening of theequilibrium bond length Direct variable photon energy X ray photoelectron spectroscopy along with the totalion yield spectroscopy has been used to measure the ionization cross section of the 3dspin orbit components of the Cs atom for the first time The measured ionization cross section qualitatively confirmed the theoretical calculation M Ya Amusia et al Phys Rev Lett 88 093002 2002 based on the Spin Orbit Activated Interchannel Coupling
استاد راهنما :
رابرت ريچتر، محمود تبريزچي
استاد مشاور :
لورنزو آوالدي
استاد داور :
مهدي صفا، حسن سبزيان، حسن روضاتيان، محمد هادي زمان پور
