Patent · US Active

Method for charging a superconductor magnet system, with a main superconductor bulk magnet and a shield superconductor bulk magnet

US11527343B2 · kind B2 · utility

1Cited by

2References

10Claims

0Family size

Assignee

BRUKER SWITZERLAND AG · CH

Inventors

Stephen Alfred March · Zürich, CH
Joerg Hinderer · Waldshut-Tiengen, DE
Stephan Heiss · Wiesendangen, CH

Key dates

Filing date	Oct 30, 2020
Grant date	Dec 13, 2022
Priority date	—
Expiry date	Aug 26, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH01F6/06
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Charging method for a superconductor magnet system with reduced stray field, weight and space includes: arranging the system within a charger magnet bore; with Tmain>Tmaincrit and Tshield>Tshieldcrit, applying a current Icharger to the charger magnet and increasing Icharger to a first current I1>0; lowering a main superconductor bulk magnet temperature Tmain to an operation temperature Tmainop, with Tmainop<Tmaincrit, while keeping Tshield>Tshieldcrit; lowering Icharger to a second current I2<0, thereby inducing a persistent current IPmain in the main magnet; lowering a shield magnet temperature Tshield to an operation temperature Tshieldop, with Tshieldop<Tshieldcrit; increasing Icharger to zero, thereby inducing a persistent current IPshield in the shield magnet; removing the magnet system from the charger bore, and keeping Tmain≤Tmainop with Tmainop<Tmaincrit and Tshield≤Tshieldop with Tshieldop<Tshieldcrit; where: Tmaincrit: main magnet critical temperature and Tshieldcrit: shield magnet critical temperature.

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