X-ray shielding device

An X-ray device comprising:

• an X-ray source configured to emit X-rays;
• a scintillator arranged to absorb the X-rays after interaction with an object that has been placed in the X-ray device, the scintillator being configured to emit light in response to absorption of the X-rays;
• a detector arranged to receive the light from the scintillator;
• a frame enclosing the X-ray source and the detector;
• standoffs positioned on the frame, wherein each of the standoffs has a length and a cross-sectional size;
• shielding panels comprising lead, wherein each of the shielding panels includes holes having a cross-sectional size that is greater than the cross-sectional size of the standoffs by an amount that ensures the standoffs will pass through the holes despite variations in a placement of the holes in a given shielding panel resulting from manufacturing of the given shielding panel, and the length of the standoffs is greater than a maximum thickness possible for the given shielding panel due to variations in thickness resulting from the manufacturing of the given shielding panel;
• one or more brackets with fasteners configured to attach to the standoffs, wherein the standoffs form a datum structure for the one or more brackets;
• and
• exterior panels with fasteners configured to attach to the one or more brackets.