Marimi car radiatatiei termice
a) densitatea de energ electro-magn (omega=dEpsilon/dV – ec tot calc la unit de
vol)
b) energ radianta Epsilon=Integr V din omega vdV
c) puterea radianta P=dEpsilon/dt
d) intens rad termice I=dEpsilon/dt*dS
e) Puterea emisiva (luminantza) R=dP/dS, Rv=dP/dS*dV
f) Stralucirea (radiantza) B=dP/dSndR
g) Fact de anbsorbtie a=Pinc/Pabs (rap dintre put incidenta si cea absorbta)