Experimental instruments and technique

Simulation of thermally induced deformations of silicon mirrors of synchrotron radiation sources

V. S. Naumkin^ab, M. V. Gorbachev<sup>a

a</sup> S.S. Kutateladze Institute of Thermophysics, Siberian Division of the Russian Academy of Sciences
^b Novosibirsk State Technical University

Abstract: 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.

Received: 12.11.2024
Revised: 03.06.2025
Accepted: 05.06.2025

DOI: 10.61011/JTF.2025.10.61359.418-24

Bibliographic databases:

•