@inproceedings{299a85238ca94b3baacb07ff447a7a51,
title = "Structural subnanovoids in silica-based glasses probed by positronium",
abstract = "Structural subnanovoids in silica-based glasses with various glass former contents are systematically studied using positronium (Ps) as a probe. The average sizes of the structural subnanovoids are estimated from the 2D-ACAR (two-dimensional angular correlation of positron annihilation radiation) momentum distribution of para-positronium (p-Ps) and from the pick-off annihilation rates of ortho-positronium (o-Ps) in the subnanovoids. The sizes of the subnanovoids decrease almost linearly with the glass former molar content. This finding gives us useful and unique information about the structural subnanovoids and suggests the possible tool for the study of the stability of nuclear radioactive waste glass during long-term storage.",
keywords = "Glass, Momentum Distribution, Nanovoids, Positron Lifetime, Ps",
author = "Koji Inoue and Yasuyoshi Nagai and Yuzuru Sasaki and Zheng Tang and Hideaki Ohkubo and Masuyuki Hasegawa",
note = "Copyright: Copyright 2020 Elsevier B.V., All rights reserved.; Positron Annihilation: Proceedings of the 13th International Conference on Positron Annihilation, ICPA-13 ; Conference date: 07-09-2003 Through 12-09-2003",
year = "2004",
doi = "10.4028/www.scientific.net/msf.445-446.304",
language = "English",
isbn = "9780878499366",
series = "Materials Science Forum",
publisher = "Trans Tech Publications Ltd",
pages = "304--306",
editor = "Toshio Hyodo and Haruo Saito and Yoshinori Kobayashi and Yasuyuki Nagashima",
booktitle = "Positron Annihilation",
}