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2008 | 113 | 5 | 1551-1555
Article title

Positronium in Phase IV and Rotator Phase of Long-Chain Alkanes

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Languages of publication
EN
Abstracts
EN
Ortho-positronium lifetime and intensity was measured as a function of temperature and pressure for some n-alkanes in which so-called "phase IV" appears. This phase is characterized by slightly increased ortho-positronium lifetime compared to low-temperature phases. It was found that the effect of quenching positronium by light does not appear in all phases from phase IV upwards. The lifetime in the rotator phases becomes equal to that in liquids, and only the change of positronium formation intensity allows to detect the solid-liquid transition in positron lifetime measurements.
Keywords
Year
Volume
113
Issue
5
Pages
1551-1555
Physical description
Dates
published
2008-05
received
2007-09-03
References
  • 1. T. Oyama, K. Takamizawa, Y. Ogawa, Kobunshi Ronbunshu 37, 711 (1980) (in Japanese)
  • 2. J. Kansy, Nucl. Instrum. Methods Phys. Res. A 374, 235 (1996)
  • 3. M. Maroncelli, Song Ping Qi, H.L. Strauss, R.G. Snyder, J. Am. Chem. Soc. 104, 6237 (1982)
  • 4. T. Hirade, F.H.J. Maurer, M. Eldrup, Radiat. Phys. Chem. 58, 465 (2000)
  • 5. T. Goworek, J. Wawryszczuk, R. Zaleski, B. Zgardzińska, Radiat. Phys. Chem. 76, 185 (2007)
  • 6. J. Doucet, I. Denicol`o, A.F. Craievich, C. Germain, J. Chem. Phys. 80, 1647 (1980)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n537kz
Identifiers
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