Positronium Annihilation in Freshly Defrosted Thawed Water

IF 1.1 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

Physics of Wave Phenomena Pub Date : 2023-05-02 DOI:10.3103/S1541308X23020115

L. I. Zemskaya, O. V. Ilyukhina, M. V. Karpov, S. V. Stepanov

引用次数: 0

Abstract

Variation in the parameters of the positron annihilation lifetime spectra in pure water presubjected to freeze–thaw processes is studied. It is shown that in freshly defrosted water (at 1–2°С), the ortho-positronium lifetime and formation probability tend to the corresponding values in ice (near its melting point), and after about 10 h they reach the values corresponding to ordinary water at the same temperature. It indicates that no complete (at molecular level) defragmentation of the ice lattice occurs immediately after ice melting, and rigid ice-like clusters, in which positronium formation is also possible remain in the liquid phase for several hours.

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刚解冻的解冻水中正电子湮灭

研究了冻融过程中纯水中正电子湮灭寿命谱参数的变化。结果表明，在刚解冻的水中(1-2°С)，正电子寿命和形成概率趋向于冰中(接近其熔点)的相应值，约10 h后达到相同温度下普通水的相应值。这表明，在冰融化后，没有完全(在分子水平上)的冰格碎片立即发生，并且刚性的冰状团簇(其中也可能形成正电子)在液相中保留数小时。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physics of Wave Phenomena PHYSICS, MULTIDISCIPLINARY-

CiteScore

2.50

自引率

21.40%

发文量

审稿时长

>12 weeks

期刊介绍： Physics of Wave Phenomena publishes original contributions in general and nonlinear wave theory, original experimental results in optics, acoustics and radiophysics. The fields of physics represented in this journal include nonlinear optics, acoustics, and radiophysics; nonlinear effects of any nature including nonlinear dynamics and chaos; phase transitions including light- and sound-induced; laser physics; optical and other spectroscopies; new instruments, methods, and measurements of wave and oscillatory processes; remote sensing of waves in natural media; wave interactions in biophysics, econophysics and other cross-disciplinary areas.