TP1 (ceramic) = 22.0°C (measured)
TP2 (window) = 38.0°C (measured)
TP3 (window) = 35.0°C (measured)
QINCIDENT = 150W (measured)
QELECTRICAL = 6.2W
RMIN_ARRAY-TO-CERAMIC = 0.30°C/W
QARRAY = 6.2W + (150W × 0.25) = 43.7W
TMIN_ARRAY = 22.0°C + (43.7W × 0.30°C/W) =35.1°C
TDELTA_MAX = [maximum of TP2 or TP3] –TMIN_ARRAY = 38.0°C – 35.1°C = 2.9°C