DC Monochromator
Brazilian Synchrotron Light Laboratory, Campinas, São Paulo, Brazil
An innovative scanning DC Monochromator was developed built with the ability to accurately scan samples in a beamline.
A monochromator separates polychromatic light (containing multiple wavelengths) into individual, narrow bands of single-wavelength light. It uses a dispersion element (diffraction grating or prism) and slits to isolate specific wavelengths. This allows for the precise analysis of samples. For more extensive research of the samples a monochromator was developed that can scan the entire sample.
Challenges
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Control bragg angle variations 2 – 60 deg
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Maintain bragg angle accuracy during fly scan
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Achieve high temperature stability
Cooperation
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LNLS beamline engineers participated in the assembly and tuning of the system for several weeks, as part of the knowledge transfer process
Key Competences
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System dynamics
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Thermal system analysis and management
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Cryogenics
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Precision mechanics
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Motion control