EMIR Detector Characterization

摘要

EMIR is a multiobject intermediate resolution near infrared (1. 0 - 2. 5 microns) spectrograph with image capabilities to be mounted on the 10 m Gran Telescopio Canarias (GTC), located on the Spanish island of La Palma. The instrument uses a HAWAII-2 infrared detector. In this paper, results of the detector characterization are presented. Apart from tests to obtain the typical figures of merit, such as readout noise, well depth, dark current, quantum efficiency or maximum pixel rate, some detailed studies have been performed to characterize the detector persistence, crosstalk between channels and the disturbing effects that appear in these detectors just after reset or after a certain time without being read. These effects and the techniques we have tried to minimize them are also presented