Radiation detector module, device, system and manufacturing method thereof

A radiation detector apparatus, comprising one or a plurality of radiation detector modules, wherein the radiation detector module comprises:

• a detector layer, configured to detect a ray that is incident on the detector layer and convert the ray into an electrical signal;
• a frame layer, wherein the detector layer is disposed on a first side of the frame layer and fixed to the frame layer;
• and
• a signal processing layer, disposed on a second side of the frame layer opposite to the first side and fixed to the frame layer, wherein the signal processing layer is configured to communicate with the detector layer to receive the electrical signal and process the electrical signal.

A radiation detector, comprising:

• a detector circuit board, comprising a probe element that converts received ray radiation into an electrical signal;
• a signal processing circuit board, communicating with the detector circuit board and comprising a signal processing circuit processing the electrical signal received from the detector circuit board;
• and
• a frame, wherein the detector circuit board and the signal processing circuit board are disposed on two sides of the frame along a ray radiation direction, respectively.