الفهرس 
CHAPTER (1) INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The extraction and processing of earth of this sh.dy 10 determine the occupalion ”l radiatIOn xpMUres in some of WPtinn undcrgr (lund phosphate mines by measuring lhc exposure levels in Ihese mine fill ’re llhs ohlainecl indiCAte Ihlll most the mn ill1ll111 radon lnd radoll dallghl po lire I vels significantly cced lhe aCliun k’c s for Ihe fk place recommended in ICRP Publicati n 65 tlCRr, 19 (3) I he p0, uredo, e relationship. iln Vain differenl individuals Ie children (rllS adlills) I hu (en ir Ihe inhaled concentrnll , of radon pn) gcny were, illlilar. IlcpMilcd in Ihe lung. mav VII alhin raltern and hll1g structure determine Ihe deposition of radon progenY IInd Illay diner among ind.viduals hus. the ond goal of Ihis study was to undcrst lnd and predict dillercl1ccs in depo ilion raHeros of inhaled radon progeny (a! lached and unattac.hed lIl1Iong din-clcm subi Cl (adliit tl’mlltc. Inllil ’and fcmal) cars. child 10. yeals old. 1I1ld infant 1 months) at diflcrcnt physiCll activities (Iceping, ittHllight and hea.) The obtained results indicalc Ihal (a) fhe depo. ilion cniciel1 ies of attached unallached radon progeny incrl’ascs with dccrcilsinl.