Resonator for electron spin resonance experiments

US4314204A · kind A · utility

Assignee

• Bruker Analytische Messtechnik GmbH · DE

Inventors

• Reinhard Biehl · Karlsruhe, DE
• Dieter Schmalbein · Bad Herrenalb, DE

Key dates

• Filing date: Apr 29, 1980
• Grant date: Feb 2, 1982
• Expiry date: Apr 29, 2000

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/345
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A resonator for electron spin resonance experiments has two cylindrical elements of the same length arranged with their axes parallel to each other and with their end faces in the same plane so that they partly merge with each other. Devices are coupled to each of the two elements for exciting a degenerate TM.sub.010 mode and a degenerate TE.sub.111 mode. In one area of the resonator whose center is at the intersection point of the two planes of symmetry of the resonator, one of which is the intersection plane of the two elements and the other containing the axes of the two elements, the two modes have a mostly vanishing electric field and, for the most part, magnetic fields perpendicular to each other. In this area, there is, at least in one end face of the resonator, an aperture for inserting a test piece.