ULTRASPEC: High-speed spectroscopy with zero readout noise
ULTRASPEC is a high-speed, spectroscopic camera based on electron-multiplying CCDs (EMCCDs) and the data acquisition system of ULTRACAM. The camera saw first light in December 2006 on the EFOSC2 spectrograph of the ESO 3.6 m telescope at La Silla. In this paper we describe the motivation behind ULTR...
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2008
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