The role of CMOS sensor calibration in ensuring reliable flux measurements

06/03/2025
Types d’événements
Séminaires post-docs du DAp
Jean LE GRAET (LSIS)
Bat 709, salle 3 (salle Cassini, Rdc)
06/03/2025
from 10:00 AM at 11:00 AM

Advances in astronomy and cosmology heavily depend on the performance of detectors used to capture light signals from the universe. CMOS Image Sensors (CIS) play a central role today in observations ranging from X-rays to infrared. The accuracy of measurements obtained with CIS requires rigorous modeling of the pixel response to a light flux, based on precise detector calibration. However, this modeling is complex due to the variability of pixel characteristics and the various physical interactions occurring within the detector. These interactions introduce correlations between model parameters, thereby creating systematic errors in the estimation of the light flux and potentially compromising scientific results. In this seminar, I will present new calibration methods that correct these systematic errors by decoupling the physical effects at the pixel level.

Local contact: Thierry FOGLIZZO

Organization: Frédéric GALLIANO

DAp