radiation

This term is defined in ECSS-E-ST-10-04C as
transfer of energy by means of a particle (including photons)

This term is defined in ECSS-E-ST-10-12C as
transfer of energy by means of a particle (including photons)

This term is defined in ECSS-E-ST-20-06C as
transfer of energy by means of a particle (including photons)