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Fundamental Optical Absorption
IT Xray Lattice Constant Measurements
Lattice Constant of Colored BaO
2 other sections not shown
absorption centers absorption constant absorption edge absorption of BaO absorption peaks BaO crystals BaO films BaO specimen barium oxide beryllium foil blue BaO Bragg angle broadening bulk modulus ceresin characteristic temperature colored BaO commercial camera Cornell University cryostat camera cryostat x-ray camera crystal perfection Debye function density of absorption determined diffraction lines dry box electron Error Form evaporated films evaporating filament evaporating unit excess barium exciton impurities indicated lattice constant measurements lattice energy lattice imperfections lattice parameter lattice vibrations liquid helium container liquid nitrogen temperature magnitude measurements at liquid observed optical absorption measurements optical measurements optioal absorption oxide oxygen photoconductivity Phya Phys platinum R. L. Sproull room temperature sample shift single crystals slope SrO films strong absorption peaks strontium oxide substrate holder substrate temperature technique temperature dependence temperature measurement temperature range thermal expansion thermal insulation Thesis tion transitions transmittance tube ultraviolet wavelength x-ray lattice constant