Positronium formation in polyethylene: a computer simulation study

Positronium formation in polyethylene: a computer simulation study

Positronium formation in low-density polyethylene was studied using computer simulation and by 1-detector Doppler broadening measurement. The experimental Ps fraction is 35%, and is reproduced by simulation if the positron thermalization distance is 150 nm. Additional simulations were performed to i...

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Veröffentlicht in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2003-10, Vol.68 (3), p.623-625
Hauptverfasser: Garcı&#x0301, a, A.Alba, Siebbeles, L.D.A., Schut, H., van Veen, A., Pimblott, Simon M.
Format: Artikel
Sprache:eng
Schlagworte:
Monte Carlo simulation
Polyethylene
Positronium formation
Track structure
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Zusammenfassung:Positronium formation in low-density polyethylene was studied using computer simulation and by 1-detector Doppler broadening measurement. The experimental Ps fraction is 35%, and is reproduced by simulation if the positron thermalization distance is 150 nm. Additional simulations were performed to investigate the effect of the mobilities of the positron-induced charged species, and of the electron and positron thermalization distances, on Ps formation.
ISSN:0969-806X
1879-0895
DOI:10.1016/S0969-806X(03)00246-9