2. These Regulations do not apply to—
(a)irradiation by measuring or inspection devices at a maximum level of—
(i)10 MeV in the case of X‑rays;
(ii)14 MeV in the case of neutrons; or
(iii)5 MeV in other cases;
where the dose of ionising radiation absorbed does not exceed 0.01 Gy in the case of inspection devices which utilise neutrons and 0.5 Gy in other cases; or
(b)irradiation of food prepared under medical supervision for patients requiring sterile diets.