PULSED LOW FREQUENCY EPR SPECTROMETER AND IMAGER

摘要

An EPR imager and spectrometer include pulse generating system for generating broadband pulses having an RF carrier frequencythat is not highly absorbed by biological samples. The pulse generating system includes up and down chirp convertors for frequencymodulating 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.