15 September 2016 Thermal analysis of the diamond compound refractive lens
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Abstract
Two dimensional compound refractive lenses (CRL) made out of single crystal diamond had been recently demonstrated [1, 2]. The use of compound refractive lens is inevitably associated with high x-ray absorption. One of the benefits of diamond as a material for CRL is its ability to withstand high instantaneous and average heat load. We used finite element method to simulate thermal effects in the lens. A steady state simulation is done for high average heat load conditions of ultimate storage rings. A time domain simulation is used for high peak power XFEL case. We compare diamond with beryllium, a common material for the CRL, and find that diamond temperature rise is less even though its x-ray absorption is higher.
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Sergey Antipov, Sergey Antipov, Sergey Baryshev, Sergey Baryshev, Stanislav Baturin, Stanislav Baturin, Gongxiaohui Chen, Gongxiaohui Chen, Roman Kostin, Roman Kostin, Stanislav Stoupin, Stanislav Stoupin, } "Thermal analysis of the diamond compound refractive lens", Proc. SPIE 9963, Advances in X-Ray/EUV Optics and Components XI, 99630R (15 September 2016); doi: 10.1117/12.2238442; https://doi.org/10.1117/12.2238442
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