A new view on positronium in polymers |
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| Affiliation: | 1. BASF Research Construction Materials & Systems, BASF Construction Solutions GmbH, 83308 Trostberg, Germany;2. Laboratoire Interdisciplinaire Carnot de Bourgogne UMR6303 CNRS, Université de Bourgogne, 9 avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France |
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| Abstract: | A new model is presented describing the annihilation of positronium in polymers. Ps is formed in the bulk and is trapped into the free volume holes with epithermal initial energy where it thermalizes towards its ground state. This model was verified by interpreting lifetime spectra in an amorphous cross-linked polyurethane. |
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