Phase effect in the energy loss of H projectiles in Zn targets: Experimental evidence and theoretical explanation
- 17 August 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 69 (7) , 1137-1139
- https://doi.org/10.1103/physrevlett.69.1137
Abstract
The energy loss of H projectiles in solid and gaseous Zn has been measured for the first time down to 20 keV/u, showing large differences in the stopping cross section depending on the state of aggregation of the target. For 25-keV protons, the stopping cross section of Zn in the gas phase is found to be 60% higher than that in the solid phase. A charge-state approach to the stopping power of ions in the solid and in the gas is successful in explaining this effect.Keywords
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