[ RadSafe ] Conversion Bq-Sievert

Joseph Shonka jjshonka at shonka.com
Sun Feb 3 12:45:37 CST 2019


I think you can assume a 3 year intake at a constant rate to a total burden of 225 kBq followed by 2 years of no intake to get total dose.   I am on the road for a week or so but  can look at this when I get back to my office. 
Joe Shonka 

Sent from my iPhone

> On Feb 3, 2019, at 1:38 PM, Carol Marcus <csmarcus at ucla.edu> wrote:
> 
> 
> 
> Feb. 3, 2019
> 
> Dear Theo:
> 
> You can't convert them.  They are units of different things.  The Bq is a unit of activity, and the Sv is a unit of equivalent radiation absorbed dose.
> 
> Best, Carol
> 
>> On 2/3/2019 8:43 AM, Theo Richel wrote:
>> Could anyone please help me with the conversion of Bequerels to Sieverts?  I don’t feel safe to do it. As a journalist I am writing about the late Eben Byers who died in 1932 after swallowing - as he said 1400 bottles of Radithor of which each bottle contained 74 kBq (half radium 226 and radium 228). He swallowed it during 3 years, and then lived/suffered for 2 years until his death. 30 years after his death Robley Evans analysed his remains and concluded that Byers bones contained 225 kBq. Expected was about a 100 so Byers may have underreported his consumption. That being what it is I would like someone  someone to calculate from this 225kBq Byers lifetime dosis in Sieverts. I am  building a website  (popular, in Dutch) with the aim to fight  radiofobia and that requires imho t'hat I keep the usage of units limited and as uniform as possible. Anyone?
>> 
>> Many thanks
>> 
>> Theo Richel
>> The Netherlands
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