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Abstracts
The effect of visible light exposing on the ortho-positronium formation in polyethylene was studied. Lifetime spectra of positrons in polyethylene were measured in the temperature range between 50 K and 370 K. It was observed that the visible light quenches the enhancement of ortho-positronium intensity (I_{3}) at lower temperature than ca. 250 K - the glass transition temperature of polyethylene. On the other hand, the lifetime of ortho-positronium component (τ_{3}) was not affected by the presence of the visible light.
Keywords
Journal
Year
Volume
Issue
Pages
533-538
Physical description
Dates
published
1999-04
Contributors
author
- High Energy Accelerator Research Organization (KEK), Tanasi-Branch, 3-2-1 Midori, Tanasi-si, Tokyo 188-8501, Japan
author
- Department of Materials Science, Japan Atomic Energy Research Institute, Tokai, Naka, Ibaraki 319-1106, Japan
author
- The Graduate University for Advanced Studies, High Energy Accelerator Research Organization (KEK), 1-1, Oho, Tsukuba, Ibaraki 305-0801, Japan
author
- High Energy Accelerator Research Organization (KEK), 1-1, Oho, Tsukuba, Ibaraki 305-0801, Japan
author
- Research Center for Nuclear Science and Technology, University of Tokyo, Tokai, Naka, Ibaraki 319-1106, Japan
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv95z416kz