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Showing 1 to 2 of 2 for “"Slow Positron Beam"”.
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Design and Testing of a Prototype Slow Positron Beam at the NC State University PULSTAR Reactor
Slow positrons have proven to be a powerful tool for the analysis of materials. This nondestructive probe is capable of reconstructing the electronic environment below the surface of materials utilizing the conservation of energy and momentum on the annihilation quanta. Radioactive sources are …
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Positronium in the AEgIS experiment: study on its emission from nanochanneled samples and design of a new apparatus for Rydberg excitations
… the velocity distribution of Ps emitted by a positron-positronium converter as well as its excitation in Rydberg states have to be studied and optimized. In this thesis Ps cooling and emission into vacuum from nanochannelled silicon targets was studied by performing Time of Flight measurements …