# US 7,745,797 B1 · Digital x-ray detector assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,745,797 B1 - Document ID: US7745797B1 - Status: Granted - Kind: B1 - Application number: 12/396,730 - Filed: 2009-03-03 - Granted: 2010-06-29 - Earliest claimed: 2009-03-03 - Assignees: General Electric Company - Inventors: James Zhengshe Liu; Chen Zhang; Habib Vafi; Zhimin Sun; Kenneth Scott Kump; Clifford Bueno; Clarence Lavere Gordon, III - Web page: https://patentgrep.com/patent/US7745797B1 ## CPC - G01T 1/00: Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation (G01T3/00, G01T5/00 take precedence) - H10F 39/1898: {Indirect radiation image sensors, e.g. using luminescent members} - G01T: MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J47/00) - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION ## Abstract A digital radiography imaging system having a digital x-ray detector that is easy to manufacture and produces high quality images with no artifacts. The digital x-ray detector including a front cover, a scintillator screen member, a light imager panel member having a surface in direct contact with an adjoining surface of the scintillator screen member, a compressible member positioned between the front cover and the scintillator screen member to apply pressure to the scintillator screen member and the adjoining surface between the scintillator screen member and the light imager panel member, electronic circuitry mounted on at least one printed circuit board and coupled to the light imager panel, a back cover, and a plurality of fasteners for fastening the front cover to the back cover. ## Claims ### Claim 1 A digital x-ray detector comprising: a front cover; a scintillator screen member; a light imager panel member having a surface in direct contact with an adjoining surface of the scintillator screen member; a compressible member positioned between the front cover and the scintillator screen member to apply pressure to the scintillator screen member and the adjoining surface between the scintillator screen member and the light imager panel member; electronic circuitry mounted on at least one printed circuit board and coupled to the light imager panel; a back cover; and a plurality of fasteners for fastening the front cover to the back cover; wherein the light imager panel member is positioned on a panel support member with a first isolation member placed in between. ### Claim 2 (depends on 1) The digital x-ray detector of claim 1, wherein the compressible member applies pressure to the scintillator screen member and the adjoining surface between the scintillator screen member and the light imager panel member when the front cover is fastened to the back cover. ### Claim 3 (depends on 1) The digital x-ray detector of claim 1, wherein the panel support member is a rigid member for supporting the light imager panel member and the scintillator screen member. ### Claim 4 (depends on 1) The digital x-ray detector of claim 1, wherein the first isolation member is a foam material. ### Claim 5 (depends on 1) The digital x-ray detector of claim 1, wherein the electronic circuitry on the at least one printed circuit board is isolated from the panel support member by a second isolation member. ### Claim 6 (depends on 5) The digital x-ray detector of claim 5, wherein the second isolation member is a foam material. ### Claim 7 (depends on 1) The digital x-ray detector of claim 1, wherein the scintillator screen member is a high-resolution x-ray intensifying screen made of a luminescent material. ### Claim 8 (depends on 1) The digital x-ray detector of claim 1, wherein the compressible member is a compressible foam material. ### Claim 9 (depends on 1) The digital x-ray detector of claim 1, wherein the compressible member includes a middle portion and two end portions on opposite sides of the middle portion. ### Claim 10 (depends on 9) The digital x-ray detector of claim 9, wherein the compressible member is thickest at the middle portion with gradually reducing thickness towards the two end portions. ### Claim 11 A digital x-ray detector comprising: a front cover; a scintillator screen member; a light imager panel member having a surface in direct contact with an adjoining surface of the scintillator screen member; a compressible member positioned between the front cover and the scintillator screen member to apply pressure to the scintillator screen member and the adjoining surface between the scintillator screen member and the light imager panel member; a conductive member positioned between the compressible member and the scintillator screen member; electronic circuitry mounted on at least one printed circuit board and coupled to the light imager panel; a back cover; and a plurality of fasteners for fastening the front cover to the back cover. ### Claim 12 (depends on 11) The digital x-ray detector of claim 11, wherein the compressible member applies pressure to the scintillator screen member and the adjoining surface between the scintillator screen member and the light imager panel member when the front cover is fastened to the back cover. ### Claim 13 (depends on 11) The digital x-ray detector of claim 11, wherein the compressible member is a compressible foam material. ### Claim 14 (depends on 11) The digital x-ray detector of claim 11, wherein the compressible member includes a middle portion and two end portions on opposite sides of the middle portion. ### Claim 15 (depends on 14) The digital x-ray detector of claim 14, wherein the compressible member is thickest at the middle portion with gradually reducing thickness towards the two end portions. ### Claim 16 (depends on 11) The digital x-ray detector of claim 11, wherein the conductive member is electrically conductive material positioned between a surface of the compressible member and an adjoining surface of the scintillator screen member. ### Claim 17 (depends on 11) The digital x-ray detector of claim 11, wherein the conductive member is a coating, film, foil, or laminate of electrically conductive material that is applied to a surface of the compressible member or a surface of the scintillator screen member. ### Claim 18 A digital x-ray detector comprising: a front cover; a scintillator screen member; a light imager panel member having a surface in direct contact with an adjoining surface of the scintillator screen member; a conductive compressible member positioned between the front cover and the scintillator screen member to apply pressure to the scintillator screen member and the adjoining surface between the scintillator screen member and the light imager panel member; electronic circuitry mounted on at least one printed circuit board and coupled to the light imager panel; a back cover, and a plurality of fasteners for fastening the front cover to the back cover. ### Claim 19 (depends on 18) The digital x-ray detector of claim 18, wherein the compressible member applies pressure to the scintillator screen member and the adjoining surface between the scintillator screen member and the light imager panel member when the front cover is fastened to the back cover. ### Claim 20 (depends on 18) The digital x-ray detector of claim 18, wherein the conductive compressible member is a conductive compressible foam material. ### Claim 21 (depends on 18) The digital x-ray detector of claim 18, wherein the conductive compressible member is an anti-static foam material. ### Claim 22 (depends on 18) The digital x-ray detector of claim 18, wherein the conductive compressible member includes a middle portion and two end portions on opposite sides of the middle portion. ### Claim 23 (depends on 22) The digital x-ray detector of claim 22, wherein the conductive compressible member is thickest at the middle portion with gradually reducing thickness towards the two end portions.