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Consequently , high-resolution tomography based on non-ionizing electromagnetic waves alone , as demonstrated by confocal microscopy and two-photon microscopy as well as optical coherence tomography , is limited to superficial imaging within about one transport mean free path ( ~ 1 mm ) into biological tissues . The intensity of the beamline will make it possible for users of the NXCT to collect a complete data set for an x-ray tomography image in a matter of minutes , compared to the days and even weeks required for electron microscopy . Mueller optical coherence tomography provides microscopic-scale depth-resolved tomographic images of the complete polarization properties in scattering biological tissues . Necessary information includes accurate determination of thermodynamic redox potentials and heterogeneous electron transfer kinetics of selected actinides and actinide complexes ; characterization of plutonium compound solubility in aqueous phosphate and sulfate media ; actinide chemical thermodynamics and kinetics ; behavior of mixed oxidation states of plutonium - containing materials ; plutonium diffusion and corrosion behavior ; the application of acid solution separation processes to neutralized and alkaline residues and wastes ; the nature and effect of actinide interactions with organometallics , surfaces , and organic residues ; and the performance of various analytical methods , including x-ray tomography , digital radiography , acoustic resonance spectroscopy , and actinide self-fluorescence . Optical coherence tomography is an imaging tool that provides high lateral and depth resolution . Abstract : We model ultrasound tomography by the wave equation . Through this one-year program you will receive training in all aspects of neuroradiology imaging , including plain films , plain film tomography , ultrasound , myelography , angiography , computed tomography , magnetic resonance and positron emission tomography ( PET ) . The advanced imaging catheter builds on unique technologies developed at the Laboratory , including a birefringence-insensitive optical coherence tomography ( OCT ) system . The material could eventually be used to sense infrared signals coming through fiber communications lines and through the air ; it could also be used in optical coherence tomography medical imaging and to image through turbulent and scattering media like gases , according to the researchers . Ictal single-photon emission computerized tomography ( SPECT ) produces an image of blood flow in the brain during a seizure , and interictal SPECT produces an image of blood flow in the brain when no seizures are occurring .