Siemens Aktiengesellschaft

Annette Lohfink

Peter Dietz

Thorsten Speckner

Andreas Krug

Mark James Le Feuvre

Bernd Maciejewski

An inventive vibration-generating device comprises a cover and isolating device arranged between the cover and the assembly. The isolating device reduces the propagation of vibrations from the vibration-generating assembly to the outer casing of the cover and is hereby supported according to the embodiment so that they float in relation to the assembly and/or the cover.

Assembly with a vibration-isolated cover

In an arrangement with a basic field magnet and with a gradient coil of a magnetic resonance apparatus, the basic field magnet includes superconducting coils that are arranged in a reservoir with liquid helium for cooling. The helium reservoir is surrounded by a further reservoir, designated as an outer vacuum chamber. A vacuum exists between the outer vacuum chamber and the helium reservoir. A cryoshield is arranged between the outer vacuum chamber and the helium reservoir. The gradient coil is arranged in the inner chamber of the basic field magnet. The outer vacuum chamber has an additional coating with a high electrical conductivity.

Magnetic resonance apparatus with a superconducting basic field magnet with an electrically conductive coating on the outer vacuum chamber

In an arrangement of a basic field magnet and a gradient coil of a magnetic resonance apparatus, the basic field magnet includes superconducting coils that are arranged in a reservoir with liquid helium for cooling. The helium reservoir is surrounded by a further reservoir, designated as an outer vacuum chamber. A vacuum exists between the outer vacuum chamber and the helium reservoir. A cryoshield is arranged between the outer vacuum chamber and the helium reservoir. The gradient coil is arranged in the inner chamber of the basic field magnet. The cryoshield has additional structure for reinforcement that counteract vibrations of the cryoshield.

Growing community of inventors

Erlangen, Germany

Annette Lohfink