The Reactions of Recoil Tritium Atoms with Water. II. Reactivity Integral- and Moderator-Isotope Effects in H<SUB>2</SUB>O–D<SUB>2</SUB>O Binary Mixtures

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概要

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• The HT and DT yields from the nuclear transformation of <SUP>6</SUP>Li(n,α)T in H<SUB>2</SUB>O–D<SUB>2</SUB>O binary mixtures were studied in the liquid phase. The (HT/H<SUB>2</SUB>O)/(DT/D<SUB>2</SUB>O) ratio was nearly constant at 1.60±0.08 over the whole range of mol fractions of D<SUB>2</SUB>O in the presence of I<SUB>2</SUB> as a scavenger. Using the kinetic model with reasonable assumptions, the relative efficiencies for the kinetic moderation of H<SUB>2</SUB>O, HDO, and D<SUB>2</SUB>O were determined. The results indicate that the collision of recoil T atoms with HDO, with a large fractional energy loss, must occur as frequently as with H<SUB>2</SUB>O.

• 公益社団法人 日本化学会の論文

著者

• Aratono Yasuyuki

  Division of Chemistry, Japan Atomic Energy Research Institute

• TACHIKAWA Enzo

  Division of Chemistry, Japan Atomic Energy Research Institute

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