PULSED LOW FREQUENCY EPR SPECTROMETER AND IMAGER

An EPR imager and spectrometer include 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 co...

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Bibliographische Detailangaben
Hauptverfasser:	ROTH, BRADLEY, SUBRAMANIAN, SANKARAN, FRIAUF, WALTER S, BOURG, JOHN, POHIDA, THOMAS J, ZABLOCKY, PAUL G, MIROTZNIK, MARK, CHERUKURI, MURALI, SMITH, PAUL D, TSCHUDIN, ROLF GOTTFRIED, MITCHELL, JAMES
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEDICAL OR VETERINARY SCIENCE PHYSICS SURGERY TESTING
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Beschreibung
Zusammenfassung:	An EPR imager and spectrometer include 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.