Mirror Facets for the VERITAS Telescopes
Abstract
Each of the VERITAS telescopes has 345 adjustable glass facets which were manufactured by D.O.T.I., Roundrock, Texas with slumping and grinding to get the optical figure. The facets were aluminized and anodized at the Whipple Observatory. The parameters (reflectivity, focal length and blur circle) were measured. The design specifications for focal length (12.00 m +/- 1%) and spot size (< 10 mm) were surpassed by a factor of two. The anodizing process will be described and the effect of exposure at the VERITAS site on the reflectivity described.
- Publication:
-
International Cosmic Ray Conference
- Pub Date:
- 2008
- Bibcode:
- 2008ICRC....3.1397R