Patent ID: 7528378

Claim:
A radiation detection apparatus comprising: a detector unit having a plurality of semiconductor radiation detection elements each having a semiconductor area that interacts with radiation to generate charges and an anode and a cathode constructed opposite each other and across the semiconductor area, and a detector holding member in which the semiconductor radiation detection elements are installed in a matrix including a plurality of rows in a direction a and a plurality of rows in another direction b crossing the direction a; and a detector unit holding member in which a plurality of the detector units are installed, wherein the detector holding member is provided with a plurality of anode signal lines arranged for every plural row in the direction a and connected to the respective anodes of a plurality of the semiconductor radiation detection elements belonging to the corresponding rows in the direction a and a plurality of cathode signal lines arranged for every plural row in the direction b and connected to the respective cathodes of a plurality of the semiconductor radiation detection elements belonging to the corresponding rows in the direction b, the detector holding member is provided with a first connector portion to which the plurality of anode signal lines and the plurality of cathode signal lines are separately connected, the detector unit holding member is provided with a second connector portion releasably connected to the first connector portion, and the radiation detection apparatus further includes a coupling member that releasably attaches the detector holding member to the detector unit holding member at an opposite portion to the semiconductor radiation detection elements of the detector holding member and at a corresponding position via said detector holding member.