Linear parabolic single-crystal diamond refractive lenses for synchrotron X-ray sources
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- 作者：Sergey Terentyev ; Maxim Polikarpov ; Irina Snigireva ; Marco Di Michiel ; Sergey Zholudev ; Vyacheslav Yunkin ; Sergey Kuznetsov ; Vladimir Blank and Anatoly Snigirev
- 关键词：X-ray optics ; refractive lenses ; diamond ; laser ablation ; beam conditioning
- 刊名：Journal of Synchrotron Radiation
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：24
- 期：1
- 页码：103-109
- 全文大小：933K
- ISSN：1600-5775
文摘
Linear parabolic diamond refractive lenses are presented, designed to withstand high thermal and radiation loads coming from upgraded accelerator X-ray sources. Lenses were manufactured by picosecond laser treatment of a high-quality single-crystal synthetic diamond. Twelve lenses with radius of curvature at parabola apex R = 200 µm, geometrical aperture A = 900 µm and length L = 1.5 mm were stacked as a compound refractive lens and tested at the ESRF ID06 beamline. A focal spot of size 2.2 µm and a gain of 20 were measured at 8 keV. The lens profile and surface quality were estimated by grating interferometry and X-ray radiography. In addition, the influence of X-ray glitches on the focusing properties of the compound refractive lens were studied.