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A gain series method for accurate EMCCD calibration
Duncan P Ryan1, Megan K Dunlap2, Martin P Gelfand3
1Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, 87545, USA. ryand@lanl.gov.
Abstract:
Calibration of the gain and digital conversion factor of an EMCCD is necessary for accurate photon counting. We present a new method to quickly calibrate multiple gain settings of an EMCCD camera. Acquiring gain-series calibration data and analyzing the resulting images with the EMCCD noise model more accurately estimates the gain response of the camera. Furthermore, we develop a method to compare the results from different calibration approaches. Gain-series calibration outperforms all other methods in this self-consistency test.
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