Preferred Label : radiant exposure;
Detailed label : radiant exposure, H;
IUPAC definition : radiant energy, Q, u incident /u from all u upward /u directions on a small sphere
divided by the cross-sectional area of that sphere. SI unit is J m-2.;
Scope note : this term refers to a beam not scattered or reflected by the target or its surroundings.
for a beam incident from all directions fluence (ho,fo) is an equivalent term.; mathematical definition: h s q t t e if q is constant
over the area, h q s . if e, is constant over the time interval,
h e t .; equivalent definition: irradiance, e, integrated over the time of irradiation.;
Origin ID : R05042;
See also
radiant energy, Q, u incident /u from all u upward /u directions on a small sphere
divided by the cross-sectional area of that sphere. SI unit is J m-2.
