Device for cooling a SQUID measuring instrument
AssigneeSiemens Aktiengesellschaft
InventorChristoph Schnapper
Life of this patent
Estimating the term…
Abstract
A device for cooling a SQUID measuring instrument for measuring biomagnetic or other weak magnetic fields includes a cryostat containing a vacuum in an interior space. At least one superconducting gradiomeer and at least one associated SQUID are disposed in the vacuum. Heat-conducting connections thermally couple the superconducting gradiometer and the associated SQUID to a cryogen supplied from outside the cryostat. A carrier structure supports the SQUID and the gradiometer. The carrier structure has cooling channels through which the cryogen is forced. A cryogen supply unit is situated outside the cryostat and a cryogen transfer line couples the cryogen supply unit to the cooling channels.
Claims30
A device for cooling a SQUID (superconducting quantum interferometer device) measuring instrument for measuring biomagnetic or other weak magnetic fields comprising:
- a cryostat having a vacuum in an interior space;
- at least one superconducting gradiometer and at least one associated SQUID disposed in the vacuum of said cryostat;
- heat-conducting connections thermally coupling said at least one superconducting gradiometer and said at least one associated SQUID to a cryogen supplied from outside said cryostat;
- a carrier structure supporting said at least one SQUID and said at least one gradiometer, said carrier structure including cooling channels through which the cryogen is forced for cooling said at least one SQUID and said at least one gradiometer;
- a cryogen supply unit situated outside the cryostat;
- and
- a cryogen transfer line coupling said cryogen supply unit to said cooling channels.
Dependencies are inferred from the claim text.