Browsing by Discipline
Now showing items 21-40 of 64
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Exciton operators : commutation relations and dynamics
(1997)The electron-hole pair operator commutation relations for a semiconductor are explicitly derived showing that the pairs are quasi-bosons with statistics intermediate between bosons and fermions. These pair operators are ... -
Experimental evaluation of a solid-state organ-targeted positron emission tomography (PET) camera
(2021)Positron Emission Tomography (PET) with an organ-targeted approach has a potential to significantly improve the diagnosis of a variety of diseases through higher detection efficacy and a reduced dose of radioactivity ... -
Gold-induced nanostructuring of silicon surfaces
(2005)In this thesis, a combination of scanning tunneling microscopy and low energy electron diffraction is used to investigate how submonolayer amounts of Au affect the large scale surface morphology of a vicinal Si sample ... -
Hall effect investigations in n-InSb under pressure
(1978)Low field electrical transport properties of n-InSb in the temperature range 6.4K-300K have been studied under pressures up to 15 kbar using Hall measurements. The pressure dependence of the carrier concentration, the ... -
Hydrostatic pressure effect on the electrical conductivity of indium antimonide
(1976)The electrical conductivity of n-type InSb in the temperature range 77K - 300K has been calculated by using the Boltzmann equation with a relaxation time ansatz. The tv/o dominant scattering mechanisms in this temperature ... -
Hydrostatic pressure effect on the Gunn threshold electric effect in n-InSb
(1978)The Gunn effect as a function of pressure has been studied in n~type InSb. The Gunn threshold field is found to decrease with increasing pressure reaching a minimum at P ~ 9 kbars. It then increases while the oscillations ... -
Impurity band conduction in reduced samples of bismuth iron molybdate
(1995)An experimental investigation of the electrical resistance of n-type bismuth iron molybdate (Bi3FeMo2012) pellets at temperatures from 90 to 620 K has been made in an attempt to detect impurity band conduction near room ... -
In vitro detection of apoptosis using superparamagnetic iron oxide nanoparticles and molecular magnetic resonance imaging
(2010)Superparamagnetic iron oxide (SPIO) nanoparticles have the potential to greatly expand current anatomical imaging techniques, specifically MRI. SPIO nanoparticles targeted to phosphatidylserine (PS) have the potential to ... -
Intelligent states for angular momentum and Su(3) observables / by Benjamin R. Lavoie.
(2007)We generate expressions for all of the su(2) and su(3) intelligent states. To do so we combine well known coupling methods with unitary transformations; the construction is simple and efficient, and can be extended to ... -
Investigation of the Au-induced morphology of 3.8 and 12.3 degree silicon surfaces / by Wei Wu.
(2007)We have used a combination of scanning tunneling microscopy (STM) and low energy electron diffraction to investigate the Au-induced morphology of vicinal Si samples miscut from (111) by 3.8°, and 12.3° toward [112]. The ... -
Lattice vibrations induced by impurities in polar crystals
(1980)The effect of a single or a pair of polarizable impurities on the vibrational frequencies of a solid is investigated. It is shown that the introduction of impurities alters the energy of the crystal due to the coupling ... -
Lead oxide (PbO) for direct conversion fluoroscopic detectors
(2012)Polycrystalline Lead Oxide (PbO) is being investigated as a photoconductive materials for application as X-ray-to-charge transducer in direct conversion x-ray detectors used in fluoroscopy and radiology. Previous usage ... -
Luminescent response of phosphors and scintillators to ions with energies in the 0-100 KeV range
(1973)A survey of the ionoluminescence of a large number of ion-phosphor combinations under uniform conditions has been made. Powdered phosphors and scintillation crystals with different activators, different methods of surface ... -
Measurement of Rabi oscillation in a spin system
(2018)This work proposes that during the application of an on-resonance MR- pulse there exists a Rabi oscillating fi eld which can be directly measured from a nuclear spin system. These oscillations have been previously ... -
Microscopic modeling of high-field charge transport in amorphous selenium
(2014-01-22)Avalanche multiplication of charge carriers as a result of successive impact ionization has led to the development of solid state avalanche photo-detectors. Crystalline based avalanche photodiodes have found a variety of ... -
Microwave interferometer for measuring dielectric properties of low-loss solids
(1974)An X-band microwave bridge-interferometer is constructed for measuring the permittivity of solids. Using simple theory, the system is first tested with several materials of known permittivity (e.g. ertalon, plexiglas ... -
Multiwavelength erbium-ytterbium co-doped fiber laser / by Mansour Dastmalchi.
(2007)A fiber ring laser, using erbium-ytterbium co-doped double clad fiber is proposed and demonstrated to produce a medium power multiwavelength fiber laser. The experimental results show that the ring resonator configuration ... -
Observation of bilayer growth in the initial epitaxy of pseudomorphic Mg on Mo(001)
(1999)Epitaxial growth of thin films on solid substrates is of great interest because it allows for the creation of materials with morphologies and chemical compositions which are not found in nature. The size o f electronic ... -
Optical spectroscopy of colon tissue and a breast cancer cell line : potential for cancer detection
(2004)Two forms of cancer affecting a large number of individuals are breast cancer and colon cancer. In 2003, it was projected that approximately 21000 Canadians would be diagnosed with breast cancer and another 18000 would ...