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2001 | 99 | 3-4 | 321-328
Article title

A Study of Positron Properties in Quartz Crystals and Synthetic Silica Glass

Content
Title variants
Languages of publication
EN
Abstracts
EN
The monoenergetic positron beamline "SPONSOR" at Rossendorf has been used to investigate the positron behaviour in a naturally grown Brasilian quartz, two synthetic quartz crystals of different origin, and synthetic silica glass. The measurements allow us to obtain the positron diffusion length of free positrons and Bloch para-positronium, if formed, in these materials. In addition, hydrothermal treatment of a synthetic quartz has been used to introduce hydrogen into the crystal up to a certain depth. The presence of hydrogen is found to influence the formation of para-positronium. The depth distribution of hydrogen has been measured independently by nuclear reaction analysis, and will be discussed in comparison with the results deduced from the positron studies.
Keywords
EN
Year
Volume
99
Issue
3-4
Pages
321-328
Physical description
Dates
published
2001-03/04
received
2000-09-18
References
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  • 7. A. van Veen, H. Schut, J. de Vries. R.A. Hakvoort, M.R. Ijpma, in: Positron Beams for Solids and Surfaces, Eds. P.J. Schultz, G.R. Massoumi, P.J. Simpson, AIP Conf. Proc., Vol. 218, American Institute of Physics, New York 1990, p. 171
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv99n302kz
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