Off-plane reflection gratings for Constellation-X

Randall L. McEntaffer; Webster Cash; Ann Shipley

doi:10.1117/12.789543

15 July 2008 Off-plane reflection gratings for Constellation-X

Randall L. McEntaffer, Webster Cash, Ann Shipley

Proceedings Volume 7011, Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray; 701107 (2008) https://doi.org/10.1117/12.789543
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

We present the latest design of an off-plane reflection grating array for the Constellation-X X-ray Grating Spectrometer. The off-plane design can easily demonstrate the baseline requirements of resolution, R > 1250 and throughput, effective area > 1000 cm² from 0.3 - 1.0 keV. Furthermore, the flexibility of the design allows for several avenues for optimization of these factors. We consider two configurations, 3 m and 9 m from the focal plane using a 20 m focal length telescope. The trade-offs between the two options are discussed.

Citation Download Citation

Randall L. McEntaffer, Webster Cash, and Ann Shipley "Off-plane reflection gratings for Constellation-X", Proc. SPIE 7011, Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray, 701107 (15 July 2008); https://doi.org/10.1117/12.789543

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