Paper 13103-93
Paper 13103-93
EMCCD gain estimation: a comparison of techniques
On demand | Presented live 17 June 2024 
Abstract
Electron Multiplying Charge Coupled Devices (EMCCDs) are used in several astronomical applications thanks to their low noise at high frame rates. Depending on the application, it can be important to estimate the sensor gain, especially since the gain can change over time or depend on operating conditions. In this article we compare five techniques that have been proposed to estimate EMCCD gain using simulated, laboratory and data collected on-sky.
Presenter
Univ. of Galway (Ireland)
Dr. Nicholas Devaney is Associate Professor in Physics and leads the Applied Optics group at the University of Galway in Ireland. Dr. Devaney’s background is in high-resolution Astronomy, Adaptive and Active optics and Astronomical Instrumentation. He was responsible for the development of several optical systems for the Gran Telescopio Canarias (GTC), including its Beryllium secondary mirror, the wavefront sensing systems and the adaptive optics system. He is co-I for the MORFEO Adaptive Optics system being built for the 39m Extremely Large Telescope, and has led several projects funded by the European Space Agency, including developing a prototype Active Optics system for future space telescopes, and a study of the effects of optical aberrations on gravitational wave detection with LISA. He has also worked with local industry on computational imaging for smartphones, and recently developing metrology for freeform mirrors for space applications.