Positron emission tomography module

A positron emission tomography module, comprising:

• a gamma ray detector arrangement, wherein the module is combinable both with a magnetic resonance tomograph and with a computed tomograph, wherein the module is designed as a detachable positron emission insert which can be inserted into the patient tunnel of a magnetic resonance tomography such that it is arranged concentrically with the examination space of the magnetic resonance tomography, and wherein the module is designed to be housed in an additional carrying apparatus of the computer tomograph, the carrying apparatus being in the form of an annulus or annular segment and being fixed to a gantry of the computed tomograph in a fashion offset in an axial direction from an examination space of the computed tomograph.