A Fresnel zone plate collimator: potential and aberrations

Benedikt Menz; Heinrich Bräuninger; Vadim Burwitz; Gisela Hartner; Peter Predehl

doi:10.1117/12.2187996

4 September 2015 A Fresnel zone plate collimator: potential and aberrations

Benedikt Menz, Heinrich Bräuninger, Vadim Burwitz, Gisela Hartner, Peter Predehl

Proceedings Volume 9603, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VII; 96031Q (2015) https://doi.org/10.1117/12.2187996
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

A collimator, that parallelizes an X-ray beam, provides a significant improvement of the metrology to characterize X-ray optics for space instruments at MPE's PANTER X-ray test facility. A Fresnel zone plate was selected as a collimating optic, as it meets a good angular resolution < 0.1ⁿ combined with a large active area > 10 cm². Such an optic is ideally suited to illuminate Silicon Pore Optic (SPO) modules as proposed for ATHENA.

This paper provides the theoretic description of such a Fresnel zone plate especially considering resolution and efficiency. Based on the theoretic results the collimator setup performance is analyzed and requirements for fabrication and alignment are calculated.

Citation Download Citation

Benedikt Menz, Heinrich Bräuninger, Vadim Burwitz, Gisela Hartner, and Peter Predehl "A Fresnel zone plate collimator: potential and aberrations", Proc. SPIE 9603, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VII, 96031Q (4 September 2015); https://doi.org/10.1117/12.2187996

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