Comments on the Effect ofγ-Irradiation on Positronium Formation in Polymers at Low Temperatures

• Authors: V. Shantarovich , T. Hirade , I. Kevdina , V. Gustov , E. Oleinik
• Languages of publication: EN

Abstracts

EN

Quantitative description of the effect of γ-irradiation of PE and PMMA on positronium formation on the trapped electrons at low temperatures is suggested. The consideration shows that, at least in these substances, the number of the trapping centers is probably enough to localize all ortho-positronium, and therefore the intensity of the long-lived positronium component is dependent mostly on the probability of Ps formation but not on the number of the trapping centers.

Keywords

EN

78.70.Bj

Discipline

• 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)

• Journal: Acta Physica Polonica A
• Year: 2001
• Volume: 99
• Issue: 3-4
• Pages: 497-501

Dates

published

2001-03/04

received

2000-09-18

Contributors

author

V. Shantarovich

• Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygin str., Moscow, 117334, Russia

author

T. Hirade

• Department of Material Science, Japan Atomic Energy Research Institute, 319-1195 Tokai, Japan

author

I. Kevdina

• Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygin str., Moscow, 117334, Russia

author

V. Gustov

• Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygin str., Moscow, 117334, Russia

author

E. Oleinik

• Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygin str., Moscow, 117334, Russia

References

• 1. W. Brandt, S. Berko, W.W. Walker, Phys. Rev., 120, 1229, 1960
• 2. Y.C. Jean, Q. Deng, T.T. Nguen, Macromol., 28, 8840, 1995
• 3. V.P. Shantarovich, V.I. Goldanskii, Hyperfine Interact., 116, 67, 1998
• 4. C. Dauve, G. Consolati, J. Kansy, E. Van Waeyenberge, Phys. Lett. A, 238, 379, 1998
• 5. T. Hirade, F.H.J. Maurer, M. Eldrup, Radiat. Phys. Chem., 58, 465, 2000

Identifiers

DOI

10.12693/APhysPolA.99.497