Mirror Development for the Cherenkov Telescope Array
A. F\"orster (1), T. Armstrong (2), H. Baba (3), J. B\"ahr (4), A., Bonardi (5), G. Bonnoli (6), P. Brun (7), R. Canestrari (6), P. Chadwick (2),, M. Chikawa (8), P.-H. Carton (7), V. De Souza (9), J. Dipold (9), M. Doro, (10), D. Durand (7), M. Dyrda (11), E. Giro (12)

TL;DR
This paper discusses the development of new, cost-effective mirror technologies and coatings for the Cherenkov Telescope Array, aiming to enhance performance and reduce production costs for large-scale gamma-ray observatories.
Contribution
It introduces novel mirror substrate technologies and advanced surface coatings specifically designed for the CTA, improving efficiency and durability over existing methods.
Findings
Development of lightweight, reliable mirror substrates.
Implementation of high-reflectance coatings with longer lifetimes.
Pre-production of new mirror technologies has begun.
Abstract
The Cherenkov Telescope Array (CTA) is a planned observatory for very-high energy gamma-ray astronomy. It will consist of several tens of telescopes of different sizes, with a total mirror area of up to 10,000 square meters. Most mirrors of current installations are either polished glass mirrors or diamond-turned aluminium mirrors, both labour intensive technologies. For CTA, several new technologies for a fast and cost-efficient production of light-weight and reliable mirror substrates have been developed and industrial pre-production has started for most of them. In addition, new or improved aluminium-based and dielectric surface coatings have been developed to increase the reflectance over the lifetime of the mirrors compared to those of current Cherenkov telescope instruments.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
