The MARVEL instrument is an array of four 80cm telescopes feeding a high-resolution echelle spectrograph designed to provide high precision radial-velocity measurements and is being led by KU Leuven (Belgium). The UK ATC is responsible for the delivery of the detector work package; a fully characterised STA1600LN optical CCD housed in a custom cryostat. As a large image area detector, the STA1600LN has been used in a variety of astronomy applications for imaging. This paper will detail the characterisation testing done by the UK ATC Electronics and Detectors group, to verify that this detector meets the requirements for a high-resolution spectrograph of this type. Testing includes measures of read noise, dark current, and the effects of the dither clocking on detector performance and stability, among others.
|