Title :
Generation and detection of hyperpolarized xenon
Author :
Zdenek Buchta;Jan Rychnovsky; Zenon Starcuk;Josef Lazar
Author_Institution :
Institute of Scientific Instruments of the ASCR,v.v.i., Kr?lovopolsk? 147, 61264 Brno, Czech Republic
Abstract :
We present the experimental results of generation and of detection of hyperpolarized xenon obtained by 4.7 T, 200 MHz magnetic resonance (MR) system. Xenon 129 was hyperpolarized by the spin-exchange with Rubidium pumped first by Ti:Sa laser and also by extended cavity laser system based on a high-power laser diode optimized for maximum efficiency of the optical pumping process. The application of the arrangement with semiconductor laser system is oriented medicine, especially to continuous production of hyperpolarized Xenon (HpXe) which serves as an contrast media in MR imaging systems.
Keywords :
"Xenon","Pump lasers","Semiconductor lasers","Magnetic resonance","Laser excitation","Diode lasers","Optical pumping","Biomedical imaging","Continuous production","Optical imaging"
Conference_Titel :
AFRICON 2007
Print_ISBN :
978-1-4244-0986-0
Electronic_ISBN :
2153-0033
DOI :
10.1109/AFRCON.2007.4401452