chapter  6
52 Pages

Environment And Nuclear Safety

Biologicaldosesassociatedtoneutronsareindirectlyevaluated. Weconsideramono-energeticfluxofneutronspenetratingamediumwhose compositionisrepresentativeofthehumanbody.Transportca l culations madeon ceandforallhavemadeitpossibletodeterminetheneutrondistributionsinsuchamedium ,aswellasthedistributionofalltheparti-- cleswhichresultfromtheirnuclearinteract i onwithmatter:recoil nuclei,secondaryphotons,2He

1particlescorningfromthreshhold reactions,etc.Theabsorbeddose(inrads)iscalculatedforeachof thesecomponen tsandmultipliedbeforesummationbythecorrespondingRBE. Wefinallyobtaintheconversionfactorneutronflux~biologicaldose x.0( E)fordifferentincidentneutronenergies(Fig .6.2) [26].