Highly efficient thermal deformation optimization method for smart-cut mirrors over the entire photon energy range

Area of Science:

• Optics and Photonics
• Materials Science
• Mechanical Engineering

Background:

• Synchrotron radiation facilities utilize white-beam mirrors for focusing and directing high-energy photons.
• Thermal load from photon absorption causes deformation in mirrors, impacting beam quality.
• Optimizing mirror design is crucial for maintaining precise optical performance.

Purpose of the Study:

• To propose and validate a method for optimizing mirror notches in water-cooled white-beam mirrors.
• To minimize thermal deformation across the entire photon energy spectrum.
• To simplify the engineering design process for these critical optical components.

Main Methods:

• Development of a theoretical model to quantify thermal load effects on mirror deformation.
• Utilizing finite-element analysis (FEA) for validation.
• Iterative optimization of mirror notch geometry.

Main Results:

• Theoretical calculations demonstrated strong agreement with FEA results, confirming the method's validity.
• The proposed method successfully minimizes the root mean square of thermal deformation curvatures.
• Significant simplification in the design workflow for water-cooled white-beam mirrors was achieved.

Conclusions:

• The presented theoretical method provides an effective approach to optimize water-cooled white-beam mirror notches.
• This optimization significantly reduces thermal deformation, enhancing mirror performance.
• The method streamlines the design process, making it more efficient for researchers and engineers.