Lightweight CFRP spherical mirrors for the LHCb RICH-1 detector

Robert N. Martin; Robert C. Romeo; Geoff Barber; Andre Braem; Nick Brook; Bill Cameron; Carmelo D'Ambrosio; Neville Harnew; Kenneth Lessnoff; Fabio Metlica; Dave Websdale

doi:10.1117/12.734716

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18 September 2007 Lightweight CFRP spherical mirrors for the LHCb RICH-1 detector

Robert N. Martin, Robert C. Romeo, Geoff Barber, Andre Braem, Nick Brook, Bill Cameron, Carmelo D'Ambrosio, Neville Harnew, Kenneth Lessnoff, Fabio Metlica, Dave Websdale

Author Affiliations +

Proceedings Volume 6670, Nonimaging Optics and Efficient Illumination Systems IV; 66700O (2007) https://doi.org/10.1117/12.734716
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

The design, manufacture and testing of lightweight Carbon Fiber Reinforced Polymer (CFRP) converging spherical mirrors for the RICH-1 Cherenkov detector of LHCb are described. The mirrors have low areal density to minimize the amount of material in the path of traversing particles and need to be fluorocarbon compatible to avoid degradation in the C₄F₁₀ radiator gas. The total area is about 2m² and high reflectivity (typically 90%) over the wavelength range 200-600nm is required.

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Robert N. Martin, Robert C. Romeo, Geoff Barber, Andre Braem, Nick Brook, Bill Cameron, Carmelo D'Ambrosio, Neville Harnew, Kenneth Lessnoff, Fabio Metlica, and Dave Websdale "Lightweight CFRP spherical mirrors for the LHCb RICH-1 detector", Proc. SPIE 6670, Nonimaging Optics and Efficient Illumination Systems IV, 66700O (18 September 2007); https://doi.org/10.1117/12.734716

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