RE: Dose Correlation

["Heinmiller, Bruce" <heinmillerb@aecl.ca>]

That's the hard way.  An LD-50 is 4.2 Gy (because I don't like arithmetic)
and that's 1E-3 deg.C with water.

Bruce Heinmiller.
heinmillerb@aecl.ca
> ----------
> From: 	LIPTONW@dteenergy.com[SMTP:LIPTONW@dteenergy.com]
> Reply To: 	radsafe@romulus.ehs.uiuc.edu
> Sent: 	Thursday, September 24, 1998 3:52 PM
> To: 	Multiple recipients of list
> Subject: 	Re: Dose Correlation
> 
> Although interesting, this is a misleading analogy.  A classic Health 
> Physics-101 problem is to calculate the rise in body temperature from a
> lethal 
> radiation dose: 
>  
> assume:  1000 rads, body is 100% water 
>  
> 1000 rads*(100 erg/g-rad)*(1 joule/1 E7 ergs)*(1 cal/4.19 joule) = 2.4 E-3
> 
> deg. C 
>  
> Thus, a lethal dose raises body temperature approximately 2.4 E-3 deg. C. 
> If 
> radiation damage were due to energy deposition, how could such a small
> amount 
> of energy be lethal?  Clearly the radiation damage mechanism is completely
> 
> different. 
>  
> The opinions expressed are strictly mine. 
> It's not about dose, it's about trust. 
>  
> Bill Lipton 
> dteenergy.com 
>  
> You wrote: 
>  
> >In an older issue of RSO magazine, I found an article describing ways in 
> >which to present and increase the public's understanding of radiation 
> >topics. The author mentions a comparison to 5 rems of whole body dose as 
> >equivalent to the amount of energy required to light a 4 watt night light
> 
> >for 1 second. 
>  
> >I find this an interesting analogy, but in what way might this be
> verified? 
>  
> >James Kane 
> >Office of Radiological Control 
> >Southern Illinois University 
> >School of Medicine 
> >jkane@siumed.edu 
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