X-RAY PHOTOGRAPHING DEVICE
PROBLEM TO BE SOLVED: To provide an X-ray photographing device in which an X-ray magnification ratio can be reduced by reducing a deformation amount when the focusing distance of a scattered-ray removing grid is changed. SOLUTION: A focusing grid 31 is provided in the vicinity of an incident face of...
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creator | TAKAHAMA KIMIHIRO |
description | PROBLEM TO BE SOLVED: To provide an X-ray photographing device in which an X-ray magnification ratio can be reduced by reducing a deformation amount when the focusing distance of a scattered-ray removing grid is changed. SOLUTION: A focusing grid 31 is provided in the vicinity of an incident face of an image receiving part 15 for receiving an image of the X-rays irradiated from an X-ray tube 13 to remove the X-rays scattering inside a subject. Both end parts in the grid arrangement direction of the focusing grid 31 are vertically moved by a grid driving device 40 to deform the focusing grid 31 into a cylindrical shape with a prescribed curvature. The prescribed curvature is determined so that an X-ray cutoff amount at both end parts in the grid arrangement direction becomes minimum corresponding to the SID. COPYRIGHT: (C)2005,JPO&NCIPI |
format | Patent |
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SOLUTION: A focusing grid 31 is provided in the vicinity of an incident face of an image receiving part 15 for receiving an image of the X-rays irradiated from an X-ray tube 13 to remove the X-rays scattering inside a subject. Both end parts in the grid arrangement direction of the focusing grid 31 are vertically moved by a grid driving device 40 to deform the focusing grid 31 into a cylindrical shape with a prescribed curvature. The prescribed curvature is determined so that an X-ray cutoff amount at both end parts in the grid arrangement direction becomes minimum corresponding to the SID. 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COPYRIGHT: (C)2005,JPO&NCIPI</description><subject>DIAGNOSIS</subject><subject>HUMAN NECESSITIES</subject><subject>HYGIENE</subject><subject>IDENTIFICATION</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>SURGERY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJCK0A1yjFQI8PAP8XcPcgzw8PRzV3BxDfN0duVhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGBibGhsamJmaOxkQpAgBw1iCo</recordid><startdate>20041111</startdate><enddate>20041111</enddate><creator>TAKAHAMA KIMIHIRO</creator><scope>EVB</scope></search><sort><creationdate>20041111</creationdate><title>X-RAY PHOTOGRAPHING DEVICE</title><author>TAKAHAMA KIMIHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2004313546A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2004</creationdate><topic>DIAGNOSIS</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>IDENTIFICATION</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>SURGERY</topic><toplevel>online_resources</toplevel><creatorcontrib>TAKAHAMA KIMIHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKAHAMA KIMIHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>X-RAY PHOTOGRAPHING DEVICE</title><date>2004-11-11</date><risdate>2004</risdate><abstract>PROBLEM TO BE SOLVED: To provide an X-ray photographing device in which an X-ray magnification ratio can be reduced by reducing a deformation amount when the focusing distance of a scattered-ray removing grid is changed. 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subjects | DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY |
title | X-RAY PHOTOGRAPHING DEVICE |
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