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Title: Spectral structure of a polycapillary lens shaped X-ray beam
Authors: Gogolev, Aleksey Sergeevich
Filatov, Nikolay Alexandrovich
Uglov, Sergey Romanovich
Hampai, D.
Dabagov, S. B.
Keywords: inspection with x-rays; Computerized Tomography (CT) and Computed Radiography(CR); detector alignment and calibration methods; lasers; sources; particle-beams; detector control system; рентгеновские лучи; компьютерная томография; детекторы; аппаратное обеспечение; компьютерная радиография; алгоритмы; базы данных; данные
Issue Date: 2018
Publisher: IOP Publishing
Citation: Spectral structure of a polycapillary lens shaped X-ray beam / A. S. Gogolev [et al.] // Journal of Instrumentation. — Bristol : IOP Publishing, 2018. — Vol. 13 : Radiation from Relativistic Electrons in Periodic Structures (RREPS-17) : XII International Symposium, 18-22 September, 2017, Hamburg, Germany : [proceedings]. — [C04020, 6 p.].
Abstract: Polycapillary X-ray optics is widely used in X-ray analysis techniques to create a small secondary source, for instance, or to deliver X-rays to the point of interest with minimum intensity losses [1]. The main characteristics of the analytical devices on its base are the size and divergence of the focused or translated beam. In this work, we used the photon-counting pixel detector ModuPIX to study the parameters for polycapillary focused X-ray tube radiation as well as the energy and spatial dependences of radiation at the focus. We have characterized the high-speed spectral camera ModuPIX, which is a single Timepix device with a fast parallel readout allowing up to 850 frames per second with 256•256 pixels and a 55 [mu]m pitch defined by the frame frequency. By means of the silicon monochromator the energy response function is measured in clustering mode by the energy scan over total X-ray tube spectrum.
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