title: Sensitivity enhancement in ESR/ENDOR spectrometers by use of microwave amplifiers.
abstract: 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.
authors.affiliation: Fachbereich Naturwissenschaften I, Experimentalphysik, Gesamthochschule Paderborn, 4790 Paderborn, W. Germany.
authors.forename: C
authors.initials: C
authors.lastname: Hoentzsch
authors.forename: J R
authors.initials: JR
authors.lastname: Niklas
authors.forename: J M
authors.initials: JM
authors.lastname: Spaeth