Method of measuring pulsed electron spin resonance signals and p

Details Method of measuring pulsed electron spin resonance signals and p Method of measuring pulsed electron spin resonance signals and p

1994-09-22

1996-04-30

O'Shea, Sandra L.

Electricity: measuring and testing

Particle precession resonance

Using an electron resonance spectrometer system

324318, 324322, G01V 300

Patent

active

055128297

ABSTRACT:
A pulsed electron spin resonance spectrometer is provided with a first microwave oscillator for generating measuring signals of a high microwave frequency of about 80 GHz or above. A second microwave oscillator generates auxiliary signals at a lower microwave frequency of about 12 GHz or below. A first mixer generates mixed signals by mixing a measuring signal with an auxiliary signal. A pulse shaping channel generates pulsed mixed signals having a pulse length sufficient for carrying out pulsed electron spin resonance experiments. Moreover, a measuring resonator is provided to which the pulsed mixed signals are applied. A second mixer generates an output signals of a lower microwave frequency by mixing the mixed signal outputted from the measuring resonator with a signal being derived from the first microwave oscillator. A pulse shaping channel is switched between the second microwave oscillator and the first mixer.

REFERENCES:
patent: 4812763 (1989-03-01), Schmalbein
"High-Frequency Pulsed Electron Spin Resonance", Allgeier et al. Modern Pulsed & Continuous-Wave Electron Spin Resonance, pp. 267-283.
"Electron Spin Echo Spectroscopy at 95 GHZ", Weber et al. Pulsed EPR:A New Field of Applications, 1989, pp. 186-190.
"Pulsed EPR in 2-mm Band", Bresgunov, et al., Applied Magnetic Resonance, 1991, pp. 715-728.

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