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Number of results
1999 | 95 | 4 | 533-538
Article title

The Effect of Visible Light Irradiation on Positronium Formation in Polyethylene at Low Temperature

Content
Title variants
Languages of publication
EN
Abstracts
EN
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
EN
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
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