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Showing 1 to 6 of 6 for “"SEOP"”.
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Clinical-Scale Hyperpolarization of 129Xe and 131Xe via Stopped-Flow Spin Exchange Optical Pumping
… physics of spin-exchange optical pumping (SEOP) has been explained in detail by many brilliant scientists since its discovery in the 50’s and 60’s. Although some interactions remain only tenuously understood, mathematical relationships have been mapped across many trajectories with …
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Fundamental studies and applications for the development of novel MRI contrast agents: Hyperpolarized xenon-129 and superparamagnetic iron oxide nanoparticles
… such strategy-- spin-exchange optical pumping (SEOP), which is used to prepare highly spin-polarized noble gases (e.g., 3He and 129Xe). SEOP is a two-step process whereby first, the electronic spins of an alkali metal vapor become polarized via the absorption of circularly-polarized resonant …
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Using High-Powered, Frequency-Narrowed Lasers For Rb/129Xe and Cs/129Xe Spin-Exchange Optical Pumping To Achieve Improved Production of Highly Spin-Polarized Xenon For Use In Magnetic Resonance Applications
… process known as spin-exchange optical pumping (SEOP), where the angular momentum from resonant, circularly-polarized light is transferred to the electronic spins of an alkali-metal, and is subsequently transferred to the xenon nuclei through gas-phase collisions. While SEOP has been extensively …
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Hyperpolarized xenon-129 production and applications
… is to present a novel design of a large-scale SEOP polarizer for producing large quantities of highly polarized 129Xe. High Rb-Xe spin-exchange rates through long-lived van de Waals molecules at low total pressure, implemented in a novel counterflow polarizer design, resulted in xenon …
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Comparison of optical density, total cell protein, and number of viable cells (via fluorescent straining) as measures of microbial growth kinetics in suspended and biofilm cultures during biodegradation of naphthalene
Most studies on bacterial growth kinetics have been dependent on theoretical modeling with general biomass measurements using either dry weight or optical density (OD), without distinguishing live from dead bacteria or debris. As a result, there remains considerable uncertainty in reliably …
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Generalized Data-Aided Equalizers for Digital Communication Channels
Although, the ACE structure has advantages in implementations of pipelined structure and canceller structure, we found that the performance of the ACE depends on the channel characteristics. Comparing the ACE with the DFE, the performance of the ACE is not always better than the performance of the …