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- W2316777967 abstract "4MeV中性子放射化法による酸素分析においては,加速器を用いるために照射時の中性子束に変動が生じ易く,一般に分析の精度が悪くなる。これを改良する方法として,金に14MeV中性子を照射するときに197Au(n,n')197mAuで生ずる197mAuの半減期が,16O(n,p)16Nで生ずる16Nのそれと等しいことを利用して,金を内部標準とする酸素の定量方法を検討した。すなわち金板を試料と同時に照射した後,γ線スペクトルを測定し,16Nと1197mAuの放射能強度比と酸素量の関係を求めた。この方法は中性子束変動などの実験条件の変化の影響を受けないことがわかった。本法を有機物中の酸素の分析に応用し,その結果,0.6～4.2gの酸素を相対誤差4.5%以内で定量することができた。酸素定量検量線作成のさいに,酸素含量を横軸にとり,縦軸に16Nと1197mAuの放射能強度比をとると,検量線は直線からはずれるのが補正されて原点を通るよい直線となり,分析精度を向上させることができた。" @default.
- W2316777967 created "2016-06-24" @default.
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- W2316777967 date "1967-01-01" @default.
- W2316777967 modified "2023-10-17" @default.
- W2316777967 title "Activation Analysis of Oxygen with 14 MeV Neutrons Using Gold as Internal Standard" @default.
- W2316777967 doi "https://doi.org/10.1246/nikkashi1898.70.7_1112" @default.
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