D. Stjacques et al., THE JOSE ATMOSPHERIC SEEING MONITOR AT THE WILLIAM-HERSCHEL-TELESCOPE, Monthly Notices of the Royal Astronomical Society, 290(1), 1997, pp. 66-74
We have installed a Shack-Hartmann wavefront sensor at the William Her
schel Telescope. The sensor has 8x8 subapertures and operates at frame
rates up to 865 Hz. It is used to monitor those aspects of the seeing
relevant to the design and optimization of the future WHT adaptive op
tics system. Here we describe its implementation and present some samp
le results.