Arrangement for use with ground field magnet and gradient coil of magnetic resonance device, has superconducting coils arranged for cooling in container with liquid helium

摘要

The arrangement has superconducting coils arranged for cooling in a container with liquid helium. A helium container is surrounded by another container denoted as good vacuum chamber (OVC). A gradient coil is arranged within the ground field magnet. The good vacuum chamber has an additional layer (BS) with a high electrical conductivity.