Measurement of positron lifetime to probe the mixed molecular states of liquid water
Measurement of positron lifetime to probe the mixed molecular states of liquid water
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DOI：
10.1016/j.physleta.2005.07.018
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发表时间：
2005-09-26
影响因子：
2.6
通讯作者：
Yamanaka, T
中科院分区：
文献类型：
--
作者：
Kotera, K;Saito, T;Yamanaka, T
在温度为0 ~ 50℃的液态水中测量了正电子寿命谱。分子物质中电子拾起测定的o-正电子长寿命随着温度的升高而平稳下降10%。这种寿命温度依赖性可以用Ps-bubble模型和液态水混合状态模型相结合来解释。(c) 2005 Elsevier B.V.版权所有
Positron lifetime spectra were measured in liquid water at temperatures between 0 degrees C and 50 degrees C. The long lifetime of tho-positronium atoms (o-Ps) determined by electron pick-off in molecular substances decreases smoothly by 10% as the temperature is raised. This lifetime temperature dependence can be explained by combining the Ps-bubble model and the mixture state model of liquid water. (c) 2005 Elsevier B.V. All rights reserved.