The Stanford Large Detector for experimental particle physics detection at the SLAC Linear Collider contains a Cherenkov ring imaging detector (CRID). The barrel CRID mirrors have been successfully produced and installed. The industrial mirror production process, the quality control of the mirrors produced, and the results of the vacuum ultraviolet (VUV) reflectivity and mirror-shape accuracy are described. An average reflectivity of at least 80% for light at 160 nm and 85% for light in the 180-230 nm wavelength range has been achieved in the production of over 400 mirrors of a typical size of 30 by 30 cm. The surface roughness and optical distortion measurements imply that the light loss due to scattering is a few percent of the incident light and the angular error due to shape distortion is less than 1 mrad.
Bibliographical noteFunding Information:
Work supported by Department of Energy contract DE-AC03-76SF00515 ; and National Science Foundation grants PHY88-13669 and PHY88-13018. 1 Present address: EP Division, CERN, CH1211, Geneva 23, Switzerland. 2 Present address: Texas Accelerator Center, 2319 Drive, The Woodlands, TX 77380, USA. 3 Permanent address: Applied Magnetics Company, Goleta, CA 93117, USA. 4 Permanent address: Institute of Nuclear Physics, Novosi-birsk, 630090, USSR.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics