Detector

A new CCD has been ordered. This CCD has 15-micron pixels, and is physically 10% bigger then the current CCD which allows to sample the wavelength range of 370-830nm instead of the current 370-730nm. The CCD is a low-fringing device and has high QE in the wavelength covered. There is a minor reduction in the resolution when using the high-resolution fiber.

We will get a new controller with the new CCD, and a new dewar is also required. One of the issues to consider with the system is to have the possibility to switch-off all indicator lights as any stray light in the spectrograph can be seen on long integrations of faint targets.