Patent · US Active

Cryogen-free magnet system comprising a heat sink connected to the gas circuit of a cryocooler

US10655783B2 · kind B2 · utility

0Cited by

8References

19Claims

0Family size

Assignee

BRUKER SWITZERLAND AG · CH

Inventors

Patrick Wikus · Bassersdorf, CH
Joerg Hinderer · Waldshut-Tiengen, DE

Key dates

Filing date	Aug 18, 2017
Grant date	May 19, 2020
Priority date	—
Expiry date	Nov 23, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/3815
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A cryostat arrangement includes a superconducting magnet to be cooled by an active cryocooler. The cryocooler includes a coolant circuit with a compressor, a cold head, and a cold finger in thermal contact with the magnet. A volumetric vessel containing cryogenic fluid is thermally coupled to the magnet. The volumetric vessel is connected to the coolant circuit by a pressure-resistant line. A fluidic component influences the flow rate through the line in a defined manner such that the cryogenic fluid flows between the volumetric vessel and the coolant circuit with a time constant of at least 15 minutes. The cryostat can be operated in a “cryogen-free” manner and permits a sufficiently long time to quench in the event of operational malfunctions.

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