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Simulation of thermally induced deformations of silicon mirrors of synchrotron radiation sources
Russian version
Naumkin V.S. 1,2, Gorbachev M. V. 2
1Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk State Technical University, Novosibirsk, Russia
Email: vsnaumkin@itp.nsc.ru, m.gorbachev@corp.nstu.ru
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The results of numerical modeling of the thermally deformed state of a silicon mirror reflecting a synchrotron radiation beam are presented. It is shown that when estimating temperature fields at low coolant flow rates (low heat transfer coefficients), it is necessary to take into account the effect of the radiator. It is shown that under the studied conditions, a smart-cut under the cooling radiator can reduce the magnitude of absolute deformations by almost an order of magnitude, compared to a mirror without one. The results can be useful in designing multilayer mirror optics at undulator stations of new sources such as MAX IV, ESRF EBS, and the SKIF "Center for Collective Use". Keywords: numerical simulation, high heat flux densities, strained state, cooling of synchrotron equipment.
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