Design and optimization of the optics for the EDGE wide-field spectrometer

Ikuya Sakurai; Yuzuru Tawara; Jan-Williem den Herder; Marco Barbera; Giancarlo Cusumano; Teresa Mineo; Emanuele Perianati

doi:10.1117/12.733713

3 October 2007 Design and optimization of the wide-field spectrometer for the EDGE wide-field spectrometer

Ikuya Sakurai, Yuzuru Tawara, Jan-Williem den Herder, Marco Barbera, Giancarlo Cusumano, Teresa Mineo, Emanuele Perianati

Author Affiliations +

Proceedings Volume 6688, Optics for EUV, X-Ray, and Gamma-Ray Astronomy III; 668809 (2007) https://doi.org/10.1117/12.733713
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

We have been performing design and optimization of the optics for the Wide Field Spectrometer (WFS): one of the core instruments of the EDGE mission whose science targets are the studies of formation and evolution of large scale structures in the universe. WFS mirrors are based on a conical approximation of the Wolter-I design fabrication technique already applied for ASCA and SUZAKU satellites. In order to give both a large effective area and grasp with small TES detector we use a very short focal length with 1.2 m and 4 reflections system for the outer diameter. The effective area and grasp including the detector efficiency and the filter transmission are 1163 cm² and 405 cm²deg² at 0.6 keV respectively.

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Ikuya Sakurai, Yuzuru Tawara, Jan-Williem den Herder, Marco Barbera, Giancarlo Cusumano, Teresa Mineo, and Emanuele Perianati "Design and optimization of the wide-field spectrometer for the EDGE wide-field spectrometer", Proc. SPIE 6688, Optics for EUV, X-Ray, and Gamma-Ray Astronomy III, 668809 (3 October 2007); https://doi.org/10.1117/12.733713

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