Parametric X-ray radiation in the Smith-Purcell geometry for non-destructive beam diagnostics
نویسندگان
چکیده
منابع مشابه
Electron Bunch Profile Diagnostics in the Few Fs Regime Using Coherent Smith-purcell Radiation*
The rapid developments in the field of laser-driven particle acceleration hold the prospect of intense, highly relativistic electron bunches that are only a few fs long. The determination of the temporal profile of such bunches presents new challenges. The use of a radiative process such as Smith-Purcell radiation (SPR), is particularly promising in this respect. In this technique the beam is m...
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The amplitude of Parametric X-ray radiation emitted coherently by a bunch of electrons crossing a crystal (CPXR) is calculated. When the bunch density is modulated with a longitudinal period close to the X-ray wavelenght, constructive many-electron interferences enhance the intensity by Nb × |F (K)| , where Nb is the number of electrons in the bunch, F (K) the bunch form factor and K a specifie...
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Smith-Purcell radiation, generated when a beam of charged particles passes close to the surface of a diffraction grating, has been studied in the visible spectral range at wavelengths of 360 and 546 nm with the low emittance 855 MeV electron beam of the Mainz Microtron MAMI. The beam focused to a spot size of 4 microm (full width at half maximum) passed over optical diffraction gratings of eche...
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Investigations of the Smith-Purcell radiation (SPR) were began with non-relativistic electron beams with some unexpected experimental results. Further the experimental investigations were performed with relativistic electron beams for application to beam diagnostics. Large discrepancy between different theoretical models significantly increases the role of experimental studies of this phenomeno...
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We report on a novel diagnostics instrument for in-situ imaging and measurements of X-ray beam parameters in real-time. The instrument is based on the robust and simple idea of a pinhole camera that collects the weakly scattered radiation from a thin sheet of a low-Z material placed in the X-ray beam at an acute angle. We demonstrate how by recording the scattered radiation with an appropriate ...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
سال: 2019
ISSN: 0168-583X
DOI: 10.1016/j.nimb.2019.01.003