Specifications

Version 1.1 rev Jan 2013
Page 5
iXon Ultra
Table of Contents
SECTION 3: FEATURES AND FUNCTIONALITY 37
3.1 EMCCD OPERATION 37
3.1.1 Structure of an EMCCD 37
3.1.2 EM Gain and Read Noise 39
3.1.3 EM Gain ON vs EM Gain OFF 40
3.1.4 Multiplicative Noise Factor and Photon Counting 42
3.1.5 EM Gain dependence and stability 44
3.1.6 RealGain
TM
: Real and Linear gain 45
3.1.7 EM Gain Ageing: What causes it and how is it countered? 46
3.1.8 Gain and signal restrictions 47
3.1.9 EMCAL
TM
47
3.2 COOLING 48
3.2.1 Cooling options 48
3.2.2 Heat Generated in the EMCCD 48
3.2.3 Heatsink “hot side” temperature 49
3.2.4 Fan settings 49
3.3 SENSOR READOUT OPTIMIZATION 49
3.3.1 Sensor pre-amp options 50
3.3.2 Variable Horizontal Readout Rate 52
3.3.3 Variable Vertical Shift Speed 52
3.3.4 Output Amplier selection 53
3.3.5 Baseline Optimization 54
3.3.5.1 Baseline Clamp 54