OTA YASUYOSHI,大田 恭義,NISHINO NAOYUKI,西納 直行,NAKATSUGAWA HARUYASU,中津川 晴康
申请号：
JP2010258973
公开号：
JP2012108078A
申请日:
2010.11.19
申请国别(地区):
JP
年份:
2012
代理人:
摘要：
PROBLEM TO BE SOLVED: To accurately detect a flaw formed on an irradiation object surface by eliminating influences of dust and the like attached to the irradiation object surface of a housing without complicating the apparatus configuration.SOLUTION: The radiographic imaging apparatus captures a radiation image for detecting a flaw to detect white line defects and black line defects determines, as a disconnection-derived defect (refer to "white line defects A"), line defects that are parallel in the X direction or the Y direction, have thin thickness and have white line defects located in the upstream side of the readout direction or an opposite side to the driver determines line defects whose positions are moved in a recaptured radiation image (refer to (B)) for flaw detection as floating contamination-derived defects (refer to "white line defects B" and "black line defects A") determines white line defects without any displacement as the line defects (refer to "white line defects C") derived from contamination stuck to the irradiation object surface of the housing and determines black line defects without any displacement as line defects (refer to "black line defects B") derived from a flaw formed on the irradiation object surface of the housing.COPYRIGHT: (C)2012,JPO&INPIT【課題】筐体の被照射面に付着した塵埃等の影響を排除して被照射面に付いた傷を正確に検出することを、装置構成の複雑化を招くことなく実現する。【解決手段】傷検出用の放射線画像を撮影して白色線欠陥及び黒色線欠陥を検出し、X方向又はY方向に平行で太さが細く読出方向上流側又はドライバと反対側に白色線欠陥が位置している線欠陥は断線由来と判定し(「白色線欠陥A」参照)、再撮影した傷検出用放射線画像((B)参照)で位置が移動している線欠陥は浮遊ゴミ由来と判定し(「白色線欠陥B」「黒色線欠陥A」参照)、位置変化の無い白色線欠陥は筐体の被照射面に固着しているゴミに由来する線欠陥(「白色線欠陥C」参照)、位置変化の無い黒色線欠陥は筐体の被照射面に付いた傷に由来する線欠陥(「黒色線欠陥B」参照)と判定する。【選択図】図11
