Sensitivity enhancement in ESR/ENDOR spectrometers by use of microwave amplifiers.
The introduction of a low-noise microwave preamplifier in a homodyne ESR spectrometer can increase the signal-to-noise ratio by more than a factor of 10 at low modulation frequencies, and makes it superior to a superheterodyne spectrometer. The performance of this new arrangement has been compared to that of a normal homodyne spectrometer.
Hoentzsch
C
C
Fachbereich Naturwissenschaften I, Experimentalphysik, Gesamthochschule Paderborn, 4790 Paderborn, W. Germany.
Niklas
J R
JR
Spaeth
J M
JM