To accurately grasp a state of generation of streaming generated from a concrete placing surface and a gap between concrete and a steel plate.SOLUTION: An inspection method for a vessel having a shield formed of concrete arranged on a pair of steel plates and between these steel plates for shielding a radiation ray from radioactive waste loaded in a hold includes: a step for an equipment arrangement step S21 for arranging a radiation source on a first side of the shield and arranging a radiation ray detection unit on a second side of the shield; a detection step S22 for continuously moving the detection unit to a plurality of positions along the second side surface of the shield, and detecting a dose by the detection unit at each of the positions; and a determination step S23 for determining whether or not streaming of a radiation ray is occurring in the shield based on the detection values at the plurality of positions detected in the detection step.SELECTED DRAWING: Figure 6

    【課題】コンクリートの打継面やコンクリートと鋼板の間の空隙から発生するストリーミングの発生状況を高精度に把握する。【解決手段】一対の鋼板及びこれら鋼板の間に配置されたコンクリートによって形成され、ホールドに積み込まれた放射性廃棄物からの放射線を遮蔽する遮蔽体を有する船舶の検査方法であって、遮蔽体の第一側に放射線源を配置し、遮蔽体の第二側に放射線の検出部を配置する機器配置工程S21と、遮蔽体の第二側の面に沿った複数の位置に検出部を連続的に移動させ、それぞれの前記位置において検出部で線量を検出する検出工程S22と、検出工程で検出した複数の位置における検出値に基づき、遮蔽体で放射線のストリーミングが発生しているか否かを判定する判定工程S23と、を含む。【選択図】図6


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    Title :

    VESSEL INSPECTION METHOD AND VESSEL MANUFACTURING METHOD


    Additional title:

    船舶の検査方法、船舶の製造方法


    Contributors:

    Publication date :

    2019-08-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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