Abstract
The wave function of a planar-channeled positron with energy 10 MeV≤E≤100 MeV under the resonant influence of hypersound is calculated. It is found that the longitudinal hypersound changes the spectral distribution of the channeling radiation significantly. With decreasing wavelength λs of the hypersound, starting from λs = λE, where λE is the characteristic length related to one transverse oscillation of the channeled positron, a new type of radiative transition occurs. It is characterized by the stimulated enhancement of transverse energy of the positron at channeling (inverse radiative transition). When λs approaches λE/2 the inverse transitions show a resonant behaviour.
| Original language | English |
|---|---|
| Pages (from-to) | 132-141 |
| Number of pages | 10 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
| Volume | 173 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2001 |
| Externally published | Yes |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation
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Grigoryan, L. S., Mkrtchyan, A. R., Mkrtchyan, A. H., Khachatryan, H. F., Prade, H., Wagner, W., & Piestrup, M. A. (2001). Quantum-mechanical approach to planar positron channeling in a longitudinal hypersonic field. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 173(1), 132-141. https://doi.org/10.1016/S0168-583X(00)00245-7