An x-ray detector for obtaining x-ray images of an object is provided that is capable of increasing the ability of the detector to withstand shock and other types of forces acting on the enclosure toprevent and/or limit damage to the internal components of the detector. The enclosure includes an internal filler/force distribution layer formed from a lightweight, rigid material such as rigid foamand/or a suitable structure, such as a honeycomb or other lattice structure. The material is formed or shaped to fill a layer or portion of the interior of the detector that is otherwise empty space defined between the various internal components of the detector. The position and shape of the force distribution layer determines the path of load distribution across or through the enclosure away from the internal components of the detector and is optimized for shock absorption and/or load distribution.