Void Shapes and o-Ps Lifetime in Molecular Crystals |
| B. Jasińskaa, A.E. Koziołb and T. Goworeka a Institute of Physics, b Department of Crystallography, Institute of Chemistry, Maria-Curie Skłodowska University, 20-031 Lublin, Poland |
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| The size and shape of the free volume in molecular crystals was estimated from crystallographic data. The o-Ps lifetime values were calculated from respective models and compared with the experimental data. The best agreement for channel-like voids has been obtained for the value of DR parameter equal 0.19 nm. The threshold value of radius allowing Ps trapping in the void was found to be (0.12-0.13) nm. |
| DOI: 10.12693/APhysPolA.95.557 PACS numbers: 78.70.Bj |