Method and apparatus for hyperpolarisation of spins, in particular electron spins
US11592503B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 27, 2018 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Nov 3, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5601
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for hyperpolarizing spins includes the following steps: a) placing a sample containing spins (s) in a stationary magnetic field; b) magnetically coupling the sample to an electromagnetic resonator having a resonance frequency ω0 equal to the Larmor frequency of the spins in the stationary magnetic field, such that the coupling with the resonator dominates the relaxation dynamics of the spins; and c) reducing the effective temperature of the electromagnetic field inside the electromagnetic resonator below its physical temperature and that of the sample; whereby the polarization of the spins of the sample is established at a value higher than its thermal equilibrium value. An apparatus for implementing such a method is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.