Observation of resonant diffusive radiation in random multilayered systems
| Autor: | S. R. Harutyunyan, N. S. Ananikian, H. S. Vardanyan, R. B. Ayvazyan, N. K. Grigorian, Zh. S. Gevorkian, V. H. Arakelian, V. H. Sahakian, V. B. Gavalyan, A. A. Hakobyan |
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| Rok vydání: | 2006 |
| Předmět: |
Physics
Accelerator Physics (physics.acc-ph) Scattering General Physics and Astronomy FOS: Physical sciences Electron Radiation Resonance (particle physics) Electromagnetic radiation General Physics (physics.gen-ph) Physics - General Physics Transition radiation Physics - Accelerator Physics Particle radiation Atomic physics Radiant intensity |
| Zdroj: | Physical review letters. 97(4) |
| ISSN: | 0031-9007 |
| Popis: | Diffusive Radiation is a new type of radiation predicted to occur in randomly inhomogeneous media due to the multiple scattering of pseudophotons. This theoretical effect is now observed experimentally. The radiation is generated by the passage of electrons of energy 200KeV-2.2MeV through a random stack of films in the visible light region. The radiation intensity increases resonantly provided the Cherenkov condition is satisfied for the average dielectric constant of the medium. The observed angular dependence and electron resonance energy are in agreement with the theoretical predictions. These observations open a road to application of diffusive radiation in particle detection, astrophysics, soft X-ray generation and etc.. ` 4pages, 4figures |
| Databáze: | OpenAIRE |
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