Terms sourced from: http://www.iso.org/iso/catalogue_detail.htm?csnumber=3635

"Quantities and Units - Part 5: Electricity and Magnetism", , 1992, (), 0

emittance \(\varepsilon\)fluence \(F\),\(\varPsi \),\(H_{0}\)radiant energy \(Q\)wavelength \(\lambda\)