Patent · US Active

EPR spectrometer with at least one pole piece made at least partially of a function material

US12072401B2 · kind B2 · utility

0Cited by

15References

17Claims

0Family size

Inventors

Ion Prisecaru · Karlsruhe, DE
Lukas Haenichen · Karlsruhe, DE

Key dates

Filing date	Nov 30, 2021
Grant date	Aug 27, 2024
Priority date	—
Expiry date	Nov 30, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH01F7/202
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An electron paramagnetic resonance (EPR) spectrometer includes a magnet system comprising at least one magnet and at least one pole piece for producing a magnetic field along a pole axis in a field of view in front of the at least one pole piece. A probe head comprising a microwave resonator and at least one modulation coil or rapid scan coil produces an additional, time-varying magnetic field aligned along the pole axis. The probe head is arranged in the field of view, and a respective modulation coil or rapid scan coil is arranged between the microwave resonator and a respective pole piece. For each pole piece, at least a part of said pole piece is made of a function material having an electric conductivity σf of 104 S/m or less, and having a saturation magnetic flux density BSf of 0.2 T or more.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.