The conversion coefficients from Нр(10) to effective dose in the fields of photon radiation and their use in the development of occupational exposure models

The paper presents the values of conversion coefficients from operational quantity , HP( 10)/ to protection effective dose (E). were calculated in a number points located at depth 10 mm under surface torso computational model MIRD-5 body an adult . simulated irradiation conditions corresponded both uniform and sharply non-uniform employee fields photon radiation with energy 0.04 2 MeV It was demonstrated that for “ typical ” location individual dosimeter on employee’s E/HP(10) ratio is less than one entire range energies directions its incidence front left side i.e Hp (10) conservative assessment E. When falls back E/ significantly larger ( <0.1 ) or close not In spatial increase degree non-uniformity decreased placed position will be estimate value considered right underestimate optimal e mployee’s b ody llows u s t o dequately ssess ccording h i ndications he v alue f n ffective d ose ven w ith ignificantly c hanging g eometry ts rradiation uring omplete ycle reatment ource onizing r adiation