CFRP mirror technology for cryogenic space interferometry: review and progress to date

Martyn L. Jones; David Walker; David A. Naylor; Ian T. Veenendaal; Brad G. Gom

doi:10.1117/12.2233645

29 July 2016 CFRP mirror technology for cryogenic space interferometry: review and progress to date

Martyn L. Jones, David Walker, David A. Naylor, Ian T. Veenendaal, Brad G. Gom

Proceedings Volume 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave; 99046F (2016) https://doi.org/10.1117/12.2233645
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

The FP7 project, FISICA (Far Infrared Space Interferometer Critical Assessment), called for the investigation into the suitability of Carbon fiber Reinforced Plastic (CFRP) for a 2m primary mirror. In this paper, we focus on the major challenge for application, the development of a mirror design that would maintain its form at cryogenic temperatures. In order to limit self-emission the primary is to be cooled to 4K whilst not exceeding a form error of 275nm PV. We then describe the development of an FEA model that utilizes test data obtained from a cryogenic test undertaken at the University of Lethbridge on CFRP samples. To conclude, suggestions are made in order to advance this technology to be suitable for such an application in order to exploit the low density and superior specific properties of polymeric composites.

Citation Download Citation

Martyn L. Jones, David Walker, David A. Naylor, Ian T. Veenendaal, and Brad G. Gom "CFRP mirror technology for cryogenic space interferometry: review and progress to date", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99046F (29 July 2016); https://doi.org/10.1117/12.2233645

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