XRC-PhOBOS: software for optimization of the multi-blade MARS-XRD collimator: an update

Carlo Pelliciari; Lucia Marinangeli

doi:10.1117/12.981133

26 November 2012 XRC-PhOBOS: software for optimization of the multi-blade MARS-XRD collimator: an update

Carlo Pelliciari, Lucia Marinangeli

Proceedings Volume 8550, Optical Systems Design 2012; 85501E (2012) https://doi.org/10.1117/12.981133
Event: SPIE Optical Systems Design, 2012, Barcelona, Spain

Abstract

Mars-XRD is an X-ray diffractometer developed for in situ mineralogical analysis of the Martian soil. Mars-XRD main components are ⁵⁵Fe radioactive source, collimator and CCD-based detector. For spectroscopic requirements the beam section should be smaller than 1x10 mm² at sample distance. To improve X - ray flux and tuning capability a collimator with converging blades (Soller slits) has been implemented. A dedicated C++ program (XRC-PhOBOS,¹ Photon Output and Blade Optimization Software) investigates for the best Soller slits configuration comparing billion of combinations. The out-coming optimized collimator transmits a flux twice higher than a system with blades with the constant angular aperture and five times higher than a two apertures collimator. Software algorithm, updates and examples are illustrated in present paper.

Citation Download Citation

Carlo Pelliciari and Lucia Marinangeli "XRC-PhOBOS: software for optimization of the multi-blade MARS-XRD collimator: an update", Proc. SPIE 8550, Optical Systems Design 2012, 85501E (26 November 2012); https://doi.org/10.1117/12.981133

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