Electron spin resonance spectrometer
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United States of America Patent
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Nov 1, 1988
Grant Date -
N/A
app pub date -
Nov 20, 1987
filing date -
Aug 6, 1987
priority date (Note) -
Expired
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Abstract
An electron spin resonance spectrometer comprises a resonator arranged in a magnetic field of constant strength and high homogeneity and containing a sample. The resonator can be supplied, via a microwave bridge, with high-power microwave energy in the form of an intermittent signal. Measuring signals emitted by the resonator can be supplied to detector arrangements and signal evaluation arrangements. In order to be able to cut a pulse-shaped output signal of the microwave power amplifier off sharply at its trailing edge, the attenuator is designed as a switching stage comprising a circulator whose input is connected to the output of the microwave power amplifier. A subsequent circulator connection is wired up to a series connection comprising a microwave switching diode that can be switched via a control input and a waveguide termination, and another subsequent circulator connection is connected to the microwave bridge (FIG. 10).
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