Magnetic shielding for portable detector

A digital radiographic detector comprising:

• a detector panel forming digital image data according to radiation exposure energy;
• an enclosure housing the detector panel, the enclosure formed from an electrically conductive material and having a base with an inner base surface and an outer base surface and having, along its perimeter, one or more side walls that extend orthogonally from the inner base surface;
• a first magnetic shield encasing the enclosure and that comprises one or more segments of nanocrystalline material;
• and
• a cover formed from a non-conductive material and comprising a second magnetic shield of a metallic alloy that extends to overlap a portion of the first magnetic shield of the enclosure when the cover is fastened in place.

A digital radiographic detector comprising:

• a detector panel forming digital image data according to radiation exposure energy;
• an enclosure housing the detector panel, the enclosure formed from an electrically conductive material and having a base with an inner base surface and an outer base surface and having, along its perimeter, one or more side walls that extend orthogonally from the inner base surface;
• one or more layers of a nanocrystalline material extending at least along the inner and outer base surfaces and forming a base magnetic shield;
• at least a first segment of a magnetic metallic alloy adhesively bonded to conform to at least one surface of the side wall as a side wall magnetic shield, and wherein the side wall and base magnetic shields overlap at their intersection;
• and
• a cover formed from a non-conductive material and having a cover magnetic shield of the metallic alloy bonded to an inner surface, the cover magnetic shield extending to overlap a portion of the side wall magnetic shield of the enclosure when the cover is fastened in place.

A method for providing electromagnetic shielding of a digital radiographic detector, the method comprising:

• forming an enclosure for a detector panel, wherein the enclosure is formed from an electrically conductive material and has a base with an inner base surface and an outer base surface and a plurality of side walls extending from the inner base surface along the perimeter of the base, wherein each side wall has an inner wall surface and an outer wall surface;
• forming a base magnetic shield of one or more layers of nanocrystalline material extending at least along the inner and outer base surfaces;
• forming a side wall magnetic shield by adhesively bonding one or more segments of a magnetic metallic alloy to conform to one or more surfaces of the side wall and joining the side wall magnetic shield to the base magnetic shield at an overlap;
• and
• forming a cover of a non-conductive material and bonding a cover magnetic shield of the metallic alloy to an inner surface, the cover magnetic shield extending to overlap a portion of the side wall magnetic shield of the enclosure when the cover is fastened in place.