Electricity: measuring and testing – Particle precession resonance – Using an electron resonance spectrometer system
Patent
1994-11-15
1996-03-26
O'Shea, Sandra L.
Electricity: measuring and testing
Particle precession resonance
Using an electron resonance spectrometer system
G01R 3320
Patent
active
055023860
ABSTRACT:
An EPR imager and spectrometer includes pulse generating system for generating broadband pulses having an RF carrier frequency that is not highly absorbed by biological samples. The pulse generating system includes up and down chirp convertors for frequency modulating a carrier frequency pulse and compressing the frequency modulated pulse to form a broadband excitation pulse of high energy. Such a machine could form the basis of a clinical imaging device capable of high sensitivity to free radical species in human patients.
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Journal of Magnetic Resonance, vol. 103, No. 2, Jun. 15, 1993, Orlando, Minn., pp. 226-229, V. L. Ermakov, et al., "Improved Schemes for Refocusing with Frequency-Modulated Chirp Pulses".
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Bourg John
Cherukuri Murali
Friauf Walter S.
Mirotznik Mark
Mitchell James
Mah Raymond Y
O'Shea Sandra L.
The United States of America as represented by the Department of
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