Density dependence of positron annihilation and positronium formation in H2gas at temperatures between 77 and 297 K
- 28 April 1987
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 20 (8) , 1865-1874
- https://doi.org/10.1088/0022-3700/20/8/021
Abstract
Positron lifetime experiments have been performed on H2 gas at temperatures between 77 and 297 K and in the density range from 12-160 Amagat. The extracted parameters are discussed in terms of current models. In the case of the positronium fraction it has been found that the observed density dependence can, in part, be interpreted using a combined Ore and spur model.Keywords
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