まとめ
"コスモス-1402"の衛星である.
科学分野:
- 原子力工学は,原子力工学である.
- 大気化学 大気化学
- 宇宙科学 スペースサイエンス
背景:
- コスモス-1402衛星は,ウラン-235 ((235) U) 原子炉で動力提供され,1983年に地球の大気圏に再入りました.
- 衛星は南大西洋上空で崩壊し,その原子炉核の運命について疑問を投げかけました.
研究 の 目的:
- 地球の大気中のコスモス-1402原子炉核の分布と運命を決定する.
- 衛星の再入地後の平流圏におけるウラン-235 ((235) U) の存在を定量化するために.
主な方法:
- 北半球における高空気球によるエアロゾールサンプル収集.
- 27~36キロメートルの高さでのウラン-235 ((235) U) 濃度のアエロゾールサンプル分析.
- ストラトスフィアの全余剰ウラン-235 ((235) U) の計算.
主要な成果:
- -235 ((235) U) の過剰濃度が,平流圏のエアロゾールサンプルで検出されました.
- (235) U濃度の53 +/- 20%の過剰が36kmの高さで測定されました.
- 推定44 +/- 15キログラムの余分な (235) Uが平流層に存在すると計算された.
結論:
- この研究は,コスモス-1402原子炉からのウラン-235 ((235) U) の平流圏への拡散を確認した.
- この発見は,大気中での輸送と,衛星再入力の核物質の運命を巡る重要なデータを提供します.
さらに関連する動画
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Published on: May 20, 2019
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