Volume 17, Issue 2 (Iranian Journal of Physics Research ( proceedings ) 2017)                   IJPR 2017, 17(2): 279-287 | Back to browse issues page

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Ahmadi A, Ahmadi K, Khaleghi S. Generation of Cherenkov radiation in the soft x-ray region by 10-MeV electron accelerator. IJPR. 2017; 17 (2) :279-287
URL: http://ijpr.iut.ac.ir/article-1-2410-en.html
Department of Nuclear Engineering, Islamic Azad University, Malayer Branch, Malayer, Iran , ahmadi.abbas1977@gmail.come
Abstract:   (2085 Views)
Cherenkov radiation is generated when relativistic charged particles move in a medium with refractive index larger than unity. Although, the refractive index is generally smaller than unity in X-ray region, in the vicinity of atomic absorption edges, the refractive index may exceed unity and Cherenkov radiation can be generated in soft X-ray region with a narrow band width. In this paper, the spectral-angular distribution of X-ray Cherenkov Radiation (XCR) and its properties are analyzed. It is shown that, by using electron accelerators which can produce 10 MeV electrons, with average current density 20 mA/mm2, and choosing different µm-thick foils, one can produce soft X-ray Cherenkov radiation source with intensity about 10-4 ph/el, and X-ray photon energy from 50 eV up to 1 keV. Some unique properties of XCR, such as narrow band width and high brightness, make XCR a novel soft X-ray source for applications in soft X-ray microscopy, photoelectron spectroscopy, analysis of trace elements and other research areas.
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Type of Study: Research | Subject: General

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