A device is disclosed for calibrating a magnetic resonance apparatus having a PET function. In at least one embodiment, the device includes at least one marker that is visible through magnetic resonance imaging and fixed with reference to the device; at least one holder, fixed with r
A magnetic resonance apparatus has a transmission and reception coil system and a gradient coil system that is designed to generate a gradient field that is periodic in one spatial direction. The gradient field and/or the examination subject can be displaced in the spatial direction
