Method of measuring pulsed electron spin resonance signals and pulsed electron spin resonance spectrometer
US5512829A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1994 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | Sep 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/54
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.