area of life longer, in other words as the life spe gc longer the incidence of carcinoma is going wpe Siaply dbehax whatever stimalii are accumulating over the years have a | greater period of tine in whith te sat, 80 that this brihcs us inte the reala of the carcinogenic effect of radiation as being a critical thing, Now with regard te strontion as opposed to others, it relates to the fact that the neta: stays fixed, ani if the biolosical half life is-we very (the turnover of isctopic carben fs relatively short) 2 think it's measured in days on a biological experiment it just coee out.) whereas we are measuring this thing in of the lifetine of the individual, so that the amount thd 4 cate fixed in bone, 16 becoass the physical half life while ta of eigniticance vethar than the Mological half if, +: BETES Dut couldn's this change Af realty the voteworldwere of redleactivity, 1f the new carbon which youget Ls gael, Fadiouctive as coe which you elininetay what gooddoes do you thet you eliminate the first carbon? MITCHELL: . ’ Well, f you keep increasing the amount of ratlosctivity] frm acy source, you undoubtedly are going to increasethep ede Llity ef getting carcinanas developed, So that vhatever| the | eource is, strontima heppens to be the tyys of thing, ial other words why is radius so inportent? For that eas that the enocnt of radiun you take in is very emcllconsis 140