Wave propagation and focusing of soft X-rays by spherical bent microchannel plates
| Autor: | M. I. Mazuritskiy, S.B. Dabagov, Augusto Marcelli, Alessandro D’Elia, S. J. Rezvani, M. Coreno, A. M. Lerer |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Nuclear and High Energy Physics
Wave propagation Astrophysics::High Energy Astrophysical Phenomena Bent molecular geometry Synchrotron radiation X-ray optics 02 engineering and technology Radiation Curvature 01 natural sciences 010309 optics Optics 0103 physical sciences Instrumentation X-ray waveguides X-ray focusing Physics business.industry Detector Microchannel plate 021001 nanoscience & nanotechnology Microchannel plate detector 0210 nano-technology business |
| Zdroj: | Journal of synchrotron radiation 28 (2021): 383–391. doi:10.1107/S1600577520016458 info:cnr-pdr/source/autori:Mazuritskiy M.I.[a]; Lerer A.M.[a]; Marcelli A.[b,c,d]; Dabagov S.B.[b,e,f]; Coreno M.[d]; D'Elia A.[g]; Rezvani S.J.[b,g]/titolo:Wave propagation and focusing of soft X-rays by spherical bent microchannel plates/doi:10.1107%2FS1600577520016458/rivista:Journal of synchrotron radiation/anno:2021/pagina_da:383/pagina_a:391/intervallo_pagine:383–391/volume:28 |
| DOI: | 10.1107/S1600577520016458 |
| Popis: | Synchrotron radiation sources have been used to study the focusing properties and angular distribution of X-ray radiation at the exit of spherically bent microchannel plates (MCPs). In this contribution it is shown how soft X-ray radiation at energies up to 1.5 keV can be focused by spherically bent MCPs with curvature radii R of 30 mm and 50 mm. For these devices, a focus spot is detectable at a distance between the detector and the MCP of less than R/2, with a maximum focusing efficiency up to 23% of the flux illuminating the MCP. The soft X-ray radiation collected at the exit of microchannels of spherically bent MCPs are analyzed in the framework of a wave approximation. A theoretical model for the wave propagation of radiation through MCPs has been successfully introduced to explain the experimental results. Experimental data and simulations of propagating radiation represent a clear confirmation of the wave channeling phenomenon for the radiation in spherically bent MCPs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |