CCD Surface Measuring Device

CCD Surface Measuring Device

A new device for planarity measurement of CCDs and mosaics of CCDs

See also for the  User manual   and the  Diploma thesis by S. Stroebele

Table of contents

Introduction

Modern high quality CCD detectors are produced with 2048 x 4096 pixels(pixelsize = 15 mm). Astronomers desire even larger detectors fortheir instruments. To achieve larger focal planes, several CCDs are combined to a mosaic,such as the 8192 x 8192 pixel mosaic used in ESO's Wide Field Imager and the 16384 x 16384 mosaic CCD in OMEGACAM. Within an astronomical instrument the light has tobe in focus on all of these CCD detectors, requiring that all CCDs of the mosaic must be mounted to within 30 microns of a flat plane.		 CCD Surface Measuring Device
The CCD Surface Measuring Deviceis measuring the alignment of the VIMOS-CCD.