Photon-photon interaction in axial channeling
We investigate the possibility that high-energy photons are channeled, when passing through an oriented single crystal, due to Delbrück scattering. For this purpose the exact electron propagator for the single-string model is constructed. Starting from a separation of variables, we solve the Dirac equation for a cylindrical electrostatic potential. The propagator for such external fields is constructed from solutions of the radial Dirac equation. This propagator is applied to a calculation of the S matrix for Delbrück scattering. We specify the conditions under which photon channeling takes place. Unfortunately these conditions are only matched for a very small fraction of those photons being produced by channeled electrons.
| Author: | J. Klenner, Jürgen Augustin, Andreas Schäfer, Walter Greiner |
|---|---|
| URN: | urn:nbn:de:hebis:30-29944 |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 12.07.2006 |
| Year of first Publication: | 1994 |
| Publishing Institution: | Univ.-Bibliothek Frankfurt am Main |
| Source: | Physical Review A 50(2), S. 1019-1026 (1994), ©1994 The American Physical Society, http://link.aps.org/abstract/PRA/v50/p1019 |
| HeBIS PPN: | 265685664 |
| Institutes: | Physik |
| Dewey Decimal Classification: | 530 Physik |
| PACS-Classification: | 03.65.Pm Relativistic wave equations |
| 12.20.Ds Specific calculations | |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Veröffentlichungsvertrag für Publikationen ohne Print on Demand |
