Shao, Wenjin (2004) Studies and applications of hyperpolarized 129-Xe. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-05282004-132432
In this thesis, research work concerning studies and applications of hyperpolarized 129-Xe is presented. The research includes two projects. The first project is the measurement and interpretation of the spin-exchange rates between 129-Xe and three alkali metals Rb, Cs, and K, for the cell density range of 0.2-0.7 amagats, with the alkali number densities directly measured by the Faraday rotation method. The determination of the constants governing the spin-exchange process provides a better understanding of the spin-exchange optical pumping method that is used to polarize 129-Xe, and it helps the optimization of mass production of hyperpolarized 129-Xe. The second project of the research work involves the construction of a low readout field imaging system, which is capable of producing magnetic resonance images using both water and hyperpolarized 129-Xe as imaging agents, under a low readout magnetic field, and is the first of its kind at room temperature.
|Item Type:||Thesis (Dissertation (Ph.D.))|
|Subject Keywords:||hyperpolarized 129-Xe; MRI; spin-exchange optical pumping; spin-exchange rate constants|
|Degree Grantor:||California Institute of Technology|
|Division:||Physics, Mathematics and Astronomy|
|Thesis Availability:||Public (worldwide access)|
|Defense Date:||17 May 2004|
|Default Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Imported from ETD-db|
|Deposited On:||28 May 2004|
|Last Modified:||26 Dec 2012 02:48|
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