NEUTRON DETECTOR

The neutron detector comprises at least one module (detector element) comprising in each case two mutually parallel substrate plates made from a first neutron-transparent material, with said plates being spanned in each case on a self-supporting frame made of a second neutron-transparent material and being coated with a neutron absorber material on a side that is remote from the self-supporting frame, wherein the side that is coated with a neutron absorber material faces the respectively other substrate plate on an inner side, and a gas-tight measurement space, which is filled with a counter gas and in which two electrode wire planes, arranged parallel to the substrate plates, having electrode wires that run parallel in the respective electrode wire planes are arranged and in which the electrode wire planes are spaced apart from one another by way of a spacer frame, is defined between the mutually facing, coated inner sides of the substrate plates. The modules can be arranged successively in a stack arrangement.