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Please use this identifier to cite or link to this item: https://elib.bsu.by/handle/123456789/19346
Title: X-ray focusing test and x-ray imaging test by a microcapillary x-ray lens at an undulator beamline
Authors: Kohmura, Yoshiki
Awaji, Mitsuhiro
Suzuki, Yoshio
Ishikawa, Tetsuya
Dudchik, Yu. I.
Kolchevsky, N. N.
Komarov, F. F.
Issue Date: Nov-1999
Citation: Review of sciientific instruments. - № 11. - 4161-4167.
Abstract: A first focusing test of the undulator radiation at SPring-8 has been done using two types of x-ray refractive lenses in thin glass capillaries. One ~lens No. 1! contained bubbles in a glue whereas the other ~lens No. 2! contained bubbles in glycerol. The capillaries had inner diameters of 0.2 and 0.8 mm, respectively. Using x rays of 17–18 keV, the undulator source image was investigated at the focal plane. The spherical aberrations and the field distortions were carefully examined by taking the images of a gold mesh. Lens No. 1 had an advantage of high transmissivity in the hard x-ray region ~18% at 18 keV! and high tolerance to severe radiation damage, e.g., ;531012 photons/s/0.03 mm2 of the 18 keV x rays for an exposure time of 1 h. On the other hand, lens No. 2 had an advantage of a large aperture, 0.8 mm, and a small field distortion, e.g., less than 10% inside a diameter of 300 mm.
URI: http://elib.bsu.by/handle/123456789/19346
Appears in Collections:Статьи сотрудников НИИ ПФП

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