JP4780480B2 - 放射線遮蔽壁 - Google Patents
放射線遮蔽壁 Download PDFInfo
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- JP4780480B2 JP4780480B2 JP2008077833A JP2008077833A JP4780480B2 JP 4780480 B2 JP4780480 B2 JP 4780480B2 JP 2008077833 A JP2008077833 A JP 2008077833A JP 2008077833 A JP2008077833 A JP 2008077833A JP 4780480 B2 JP4780480 B2 JP 4780480B2
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- iron
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Description
以下に示す条件のもとでモンテカルロ法(MCNP5)によるシミュレーションを行い、上述した金属層と合成樹脂層の厚みの総和を最小にする積層構造を決定した。なお、モンテカルロ法とは、乱数を用いたシミュレーションを何度も行うことにより精度の高い解を求める計算手法であり、物質中での放射線の挙動の解析に広く用いられる手法である。さらに、今回用いたモンテカルロ計算コードは、北海道大学のリニアック実験施設で、その精度が検証済みのものである。
Claims (3)
- 加速エネルギーが10MeVを超える医療用電子リニアックの周囲に構築される放射線遮蔽壁であって、
少なくとも一部を鉄で構成した金属層とポリエチレンで構成した合成樹脂層とを交互に積層して形成したことを特徴とする放射線遮蔽壁。 - 1層目の前記金属層を鉄で構成するとともに、2層目以降の前記金属層を鉄と鉛の積層体で構成したことを特徴とする請求項1に記載の放射線遮蔽壁。
- 鉄からなる前記金属層、前記合成樹脂層、鉄と鉛の積層体からなる前記金属層、前記合成樹脂層の4層で構成し、前記各層の厚みを順番に40cm、10cm、30cm、10cmとしたことを特徴とする請求項2に記載の放射線遮蔽壁。
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JP2008077833A JP4780480B2 (ja) | 2008-03-25 | 2008-03-25 | 放射線遮蔽壁 |
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JP2008077833A JP4780480B2 (ja) | 2008-03-25 | 2008-03-25 | 放射線遮蔽壁 |
Publications (2)
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JP2009229384A JP2009229384A (ja) | 2009-10-08 |
JP4780480B2 true JP4780480B2 (ja) | 2011-09-28 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6322359B2 (ja) * | 2012-10-30 | 2018-05-09 | 株式会社竹中工務店 | 放射線遮蔽壁、放射線遮蔽壁の施工方法及び放射線遮蔽壁の修復方法 |
CN106599510B (zh) * | 2016-12-28 | 2020-01-10 | 中国科学院合肥物质科学研究院 | 一种基于网格分割的屏蔽层厚度精细配置方法 |
EP3895183A4 (en) * | 2018-12-14 | 2022-08-17 | Rad Technology Medical Systems, LLC | SHIELDING DEVICE AND METHOD OF MANUFACTURE THEREOF |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6378100A (ja) * | 1986-09-20 | 1988-04-08 | 株式会社 間組 | 中性子遮蔽ドア |
JPH02195699A (ja) * | 1989-01-25 | 1990-08-02 | Mitsubishi Electric Corp | 荷電粒子加速装置 |
JPH0950899A (ja) * | 1995-08-08 | 1997-02-18 | Sumitomo Heavy Ind Ltd | 電子蓄積リング |
JP2910765B1 (ja) * | 1998-06-24 | 1999-06-23 | 核燃料サイクル開発機構 | 放射線遮蔽窓の取付け構造 |
JP2001241745A (ja) * | 2000-02-28 | 2001-09-07 | Japan Nuclear Cycle Development Inst States Of Projects | 換気用スクリューダクト及びその製造方法 |
JP4399990B2 (ja) * | 2001-02-07 | 2010-01-20 | 株式会社大林組 | 放射線の遮蔽構造 |
JP2004020414A (ja) * | 2002-06-18 | 2004-01-22 | Mitsubishi Heavy Ind Ltd | 遮蔽構造及びこれを有する宇宙構造物 |
DE102004063732B4 (de) * | 2004-12-29 | 2013-03-28 | Gsi Helmholtzzentrum Für Schwerionenforschung Gmbh | Strahlenschutzkammer mit insbesondere einer mehrschichtigen Strahlenschutzwand |
JP2008232845A (ja) * | 2007-03-20 | 2008-10-02 | Materras Oume Kogyo Kk | 放射線遮蔽用プレキャストブロック、放射線遮蔽構造体及びその構築方法 |
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