Simple and Sensitive Magnetic Resonance Spectrometer Using Thermal Detection and Square Wave Frequency Modulation
- 1 April 1970
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 41 (5) , 2064-2067
- https://doi.org/10.1063/1.1659165
Abstract
The special features of this spectrometer are square wave frequency modulation and thermal detection. The modulation results from switching the microwave source between two eigenfrequencies of the cavity, obtaining pulsed frequency modulation without amplitude modulation in the microwave field. This technique is in many respects superior to the conventional static field modulation and has comparable noise suppression. The thermal detection is based on resistance modulation of a silicon monocrystal plate in contact with the sample and constitutes a very sensitive detection method at low temperatures.This publication has 0 references indexed in Scilit: