Re: Thoughts please! (ICRP 60)

["Bjorn Cedervall" <bcradsafers@hotmail.com>]

>Question the concept of 'additional' deaths due to background radiation.
>
>This is additional to what?

I don't know where exactly this above came from (quoted by someone else) but 
ICRP 60 deals with death _rate_ probabilities based on the classical 
Gompertz function G(zero, u) = A x Exp(B x u) + C
where A, B, and C are constants from demographic data and u is age. Then a 
death probability rate increment to this is added, dp/du, so the new total 
function becomes

G(u)=G(zero, u) + dp/du

This is not a probability function, but instead a probability rate function 
used for plots and graphs (describing how we decay with increasing age - it 
is a quite nice exponential after the age of 35 or so - if I recall 
correctly a Swede should theoretically have a maximum life span of about 114 
years according to this model - obviously in conflict with the decay model 
for radioactivity) in ICRP 60. Well, it is interesting to see what can come 
out of computers.
:-)

Bjorn Cedervall  bcradsafers@hotmail.com
http://www.geocities.com/bjorn_cedervall/

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