To facilitate installation of a facility member to a rear part transverse bulkhead and at the same time suitably reduce a dose rate of a streaming component.SOLUTION: A shielding structure of a radioactivity-containing cargo transportation vessel is provided in a side part area 50 of a hold 3 in a rearmost part of a vessel length direction. The side part area is partitioned into: a side shell; a hold vertical wall 36; a deck 60b provided over the side shell and the hold vertical wall; and a rear part transverse bulkhead 38 installed with a transverse bulkhead shielding body partitioning a zone 40 in hold and rear in a vessel width direction. An opening 39 penetrated by a facility member F is formed on the rear part transverse bulkhead. A shielding body 60S for shielding radioactive rays from a radioactivity-containing cargo is installed in the side part area, between the radioactivity-containing cargo stored in the hold, and the opening. The shielding body includes: a first shielding body 61 extending in the vertical direction; and a second shielding body 62 continuous from the first shielding body 61 and extending in the vessel width direction toward the side shell.SELECTED DRAWING: Figure 4

    【課題】後部横隔壁に対する設備部材の設置が容易であり、しかもストリーミング成分の線量率を好適に低減する。【解決手段】船長方向最後部の船倉3の側部領域50に設けられる放射能含有貨物運搬船の遮へい構造である。側部領域は、船側外板と、船倉縦壁36と、船側外板と船倉縦壁とに亘って設けられる甲板60bと、船倉と後方の区域40とを船幅方向に仕切る横隔壁遮へい体が設置される後部横隔壁38とで区画されている。後部横隔壁には、設備部材Fが貫通される開口部39が形成される。側部領域には、船倉に収容される放射能を含有する貨物と開口部との間に、放射能を含有する貨物からの放射線を遮る遮へい体60Sが設置される。遮へい体は、上下方向に延在する第一遮へい体61と、第一遮へい体61に連続し、船側外板へ向けて船幅方向に延在する第二遮へい体62と、を備えている。【選択図】図4


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    Titel :

    SHIELDING STRUCTURE FOR RADIOACTIVITY-CONTAINING CARGO TRANSPORTATION VESSEL


    Weitere Titelangaben:

    放射能含有貨物運搬船の遮へい構造


    Beteiligte:
    OHARA KOSUKE (Autor:in) / KAMIYA YUICHI (Autor:in) / ONO MIKIKUNI (Autor:in) / HANAUE HIDEAKI (Autor:in) / UEDA TOMOO (Autor:in)

    Erscheinungsdatum :

    14.03.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

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



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