[ RadSafe ] Fukushima beta radiation burns

Steven Dapra sjd at swcp.com
Thu Mar 24 20:32:24 CDT 2011

March 24

         Why would anyone stand in water --- rad water or otherwise 
--- without wearing rubber boots?  I can scarcely believe that these 
N-plants don't have rubber boots on hand.

Steven Dapra

At 01:50 PM 3/24/2011, you wrote:
>Below are a couple of links on reports that three workers at the 
>Fukushima No. 3 reactor got beta-radiation burns on their feet when 
>they were laying electrical cables while standing in 
>radioactively-contaminated water.  One report stated: "TEPCO said 
>radioactive water may have seeped through the workers' radiation 
>protective gear, causing radioactive materials in the water to stick 
>to their skin."
>The workers also received radiation doses of 17 to 18 rem while 
>working from 10 AM to 12:10 PM (suggesting a 1.2 - 1.3 rem/h average 
>dose rate).  It's not clear whether the workers were standing in 
>water the entire 14 hours.
>Can one estimate (or WAG) the solution concentrations of 
>beta-emitters (Ci/L) that would have to be in the water for the 
>workers to get radiation burns from the water that seeped through 
>the workers' radiation protective gear (e.g. Tyvex booties over work shoes?)?
>Rick Strickert
>Austin, TX

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