It is possible to suppress noise by intensively damping mechanical vibrations
in MRT devices, especially gradient coils and magnet vessels, using compound materials
containing centers of negative stiffness. The invention relates to a core spin
tomography device, wherein the vibrations of the device components, which can in
many aspects have a negative effect on the entire system, can be reduced or the
noise transmission paths can be reduced. The core spin tomography device has a
basic field magnet which is surrounded by a magnet envelope which surrounds and
defines an inner area, a gradient coil system being disposed inside the inner area.
Damping elements made of a material having a negative stiffness are arranged on
an inner side of the magnet envelope defining the inner area in order to absorb
acoustic vibrations which are produced during switching of the gradient coil system.
