Explicit expressions are presented for calculating specific activities
induced in food by electron and photon irradiation. In addition, sets
of calculated values are tabulated for neutron fluxes produced from m
oderation and thermalisation of photoneutrons generated within the foo
d. Evaluations of the prescriptions presented are compared with existi
ng experimental measurements of activities induced by electron and pho
ton irradiation under artificial conditions to induce measurable activ
ities. Good agreement is obtained.