放射線防護のための迷路計算法(その2) : 模型実験報告とその検討

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タイトル別名
  • LABYRINTH PLANNING METHOD FOR A PASSAGE OF A HOT CELL (PART 2) : Experimental Study of Pocket Effects of Labyrinth for Protection of Gamma-Rays
  • 放射線防護のための迷路計算法-2-
  • ホウシャセン ボウゴ ノ タメ ノ メイロ ケイサンホウ 2

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抄録

Effects of labyrinth for protection of Gamma-rays are well known and practically applied already. This experimental study aim is to confirm quantitatively pocket corner effects of labyrinth to use it for entrance of Gamma-ray hot cell facilities. The 1/3 scale model labyrinth made with ordinary concrete blocks is used in this experiment and is measured the dose rate by the pocket chambers and cobalt-60 point source. The pocket corner effects of the labyrinth (walls and ceiling) in this experiment are estimated by the method of the calculation already stated. After measuring the dose rate in the labyrinth, compared the two group dose rates (calculated and measured in this experiment) to confirm the evaluation of the corner effects of the labyrinth. This experiment results are followings: 1. The pocket corners are effective and dose albedo changing methods to zero for pocketing walls, ceil and floor are confirmed quantitatively. 2. This estimating method of the effects of the pocket corner of labyrinth for gamma-ray protection will be applied practically.

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