Curtain and shielded chamber for shielding an electromagnetic field

A shielded chamber for a magnetic resonance apparatus, comprising:

• a curtain configured to shield an electromagnetic field, the curtain including a plurality of strip elements, wherein a first strip element and a second strip element of the plurality of strip elements each have an electrically conductive layer, the first strip element and the second strip element being configured to be disconnected mechanically and electrically from one another;
• and
• an aperture configured to allow access to the shielded chamber, the curtain being arranged at the aperture, wherein:
• in a shielding configuration of the curtain, the electrically conductive layer of the first strip element is electrically connected to the electrically conductive layer of the second strip element of the plurality of strip elements and/or to a reference potential;
• the plurality of strip elements are configured to be variably positioned against one another along a main extension direction;
• and
• the plurality of strip elements are configured to provide an automatic return of the curtain into the shielding configuration.

A magnetic resonance system comprising:

• a magnetic resonance apparatus;
• and
• a shielded chamber including:
• a curtain configured to shield an electromagnetic field, the curtain including a plurality of strip elements, wherein a first strip element and a second strip element of the plurality of strip elements each have an electrically conductive layer;
• an aperture configured to allow access to the shielded chamber, the curtain being arranged at the aperture, wherein:
• in a shielding configuration of the curtain, the electrically conductive layer of the first strip element is electrically connected to the electrically conductive layer of the second strip element of the plurality of strip elements and/or to a reference potential, and the plurality of strip elements are configured to be variably positioned against one another along a main extension direction;
• a sensor configured to determine:
• whether the curtain is correctly in the shielding configuration, a resistance of each of the electrically conductive layers of the plurality of strip elements, and/or a deviation of the curtain from the shielding configuration;
• and
• a controller having a signal connection to the sensor, the controller being configured to control the magnetic resonance apparatus to perform a magnetic resonance measurement based on the determination by the sensor.

A shielded chamber for a magnetic resonance apparatus, comprising:

• a curtain configured to shield an electromagnetic field, the curtain including a plurality of strip elements, wherein a first strip element and a second strip element of the plurality of strip elements each have an electrically conductive layer;
• at least one sensor configured to:
• determine whether the curtain is correctly in a shielding configuration, and output a signal based on the determination;
• and
• an aperture configured to allow access to the shielded chamber, the curtain being arranged at the aperture, wherein:
• in the shielding configuration of the curtain, the electrically conductive layer of the first strip element is electrically connected to the electrically conductive layer of the second strip element of the plurality of strip elements and/or to a reference potential, and
• the plurality of strip elements are configured to be variably positioned against one another along a main extension direction.