A portable digital X-ray detector, comprising: an outer assembly; and a detector assembly disposed within the outer assembly, the detector assembly comprising: an imager comprising a scintillator configured to convert radiographic energy to light and a detector array comprising one or more detector elements configured to detect the light from the scintillator; electronic circuitry mounted on at least one printed circuit board and configured to control operation of the imager during data acquisition and readout; and an elastomeric assembly disposed between the imager and the electronic circuitry and comprising at least one metal having X-ray blocking properties and at least one polymer having elastic properties, wherein the elastomeric assembly is configured to absorb backscattered X-rays that pass through the imager or deflect off of a portion of the outer assembly during an X-ray exposure, characterized in that the at least one metal of the elastomeric assembly comprises a powder, the at least one polymer comprises a copolymer matrix, and the elastomeric assembly comprises the copolymer matrix filled with the powder. an outer assembly; and a detector assembly disposed within the outer assembly, the detector assembly comprising: an imager comprising a scintillator configured to convert radiographic energy to light and a detector array comprising one or more detector elements configured to detect the light from the scintillator; electronic circuitry mounted on at least one printed circuit board and configured to control operation of the imager during data acquisition and readout; and an elastomeric assembly disposed between the imager and the electronic circuitry and comprising at least one metal having X-ray blocking properties and at least one polymer having elastic properties, wherein the elastomeric assembly is configured to absorb backscattered X-rays that pass through the imager or deflect off of a portion of the outer assembly during an X-ray exposure, characterized in that the at least one metal of the elastomeric assembly comprises a powder, the at least one polymer comprises a copolymer matrix, and the elastomeric assembly comprises the copolymer matrix filled with the powder. an imager comprising a scintillator configured to convert radiographic energy to light and a detector array comprising one or more detector elements configured to detect the light from the scintillator; electronic circuitry mounted on at least one printed circuit board and configured to control operation of the imager during data acquisition and readout; and an elastomeric assembly disposed between the imager and the electronic circuitry and comprising at least one metal having X-ray blocking properties and at least one polymer having elastic properties, wherein the elastomeric assembly is configured to absorb backscattered X-rays that pass through the imager or deflect off of a portion of the outer assembly during an X-ray exposure, characterized in that the at least one metal of the elastomeric assembly comprises a powder, the at least one polymer comprises a copolymer matrix, and the elastomeric assembly comprises the copolymer matrix filled with the powder.