Account of the intratrack radiolytic processes for interpretation of the AMOC spectrum of liquid water

16th International Conference on Positron Annihilation

Zvezhinskiy, D.S.^1 ; Butterling, M.^2 ; Wagner, A.^2 ; Krause-Rehberg, R.^3 ; Stepanov, S.V.^1

Institute for Theoretical and Experimental Physics, B. Cheremushkinskaya, 25, Moscow, 117218, Russia^1

Institute of Radiation Physics, Helmholtz-Zentrum, Dresden-Rossendorf, PO Box 510119, Dresden, 01314, Germany^2

Martin-Luther-University Halle-Wittenberg, Department of Physics, Halle, 06099, Germany^3

关键词: Age-momentum correlation;    Bulk samples;    Liquid water;    New approaches;    Positron sources;    Positron spectroscopy;    Recombination model;    Vessel walls;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/443/1/012057/pdf
DOI  :  10.1088/1742-6596/443/1/012057

来源: IOP

【 摘 要 】

Recent development of the Gamma-induced Positron Spectroscopy (GiPS) setup significantly extends applicability of the Age-Momentum Correlation technique (AMOC) for studies of the bulk samples. It also provides many advantages comparing with conventional positron annihilation experiments in liquids, such as extremely low annihilation fraction in vessel walls, absence of a positron source and positron annihilations in it. We have developed a new approach for processing and interpretation of the AMOC-GiPS data based on the diffusion recombination model of the intratrack radiolytic processes. This approach is verified in case of liquid water, which is considered as a reference medium in the positron and positronium chemistry.