Re: tmi

[Steve Frey <sfreyohp@SLAC.Stanford.EDU>]

Dear Radsafers -

The following theory is rubbish. The meteorological condition at TMI 
the morning of the accident was strongly 'stable', in fact, it was nearly 
an inversion-layer situation with nearly zero windspeed. The air was 
about as still as it can get. There is no evidence of a bouncing plume 
nor of any weather mechanisms at the time to support such a thing.

Steve
******************************************************
Steve Frey, Head
Operational Health Physics (OHP) Department
Stanford Linear Accelerator Center (SLAC)
Phone:(650) 926-3839 (office),
      (650) 926-3030 (fax),
E-mail address: sfreyohp@SLAC.Stanford.EDU
Any thoughts expressed here are not meant 
to speak for SLAC or any other party in any 
capacity unless so stated.
*******************************************************

At 10:20 AM 5/2/00 -0500, you wrote:
>I have Mr. Lewis's permission to post this on Radsafe. You'll probably
>disagree with this posting, bit here's some thoughts from him on radiation
>dispersion after the accident. Posting this as a response to the recent
>article on TMI.
>
>peace
>norm
>
>"Marvin I. Lewis" wrote:
>
>>         Chauncey Kepford, Judith Johnsrud, Bill Lochstet and I had many
>> conversations on the wy that the radiation was dispersed around TMI. The
>> best that we could come up with was that the radiation plume went
>> straight up around the plant, then came down and 'bounced.' The plume
>> touched down at random and rose then touched down and repeated. This
>> allowed the radiations monitor reading to be 'averaged' in a manner that
>> minimized exposures using (in)appropriate assumptions. To get an accurate
>> population dosage would have taken hundreds of monitoring devices in the
>> vicinity of TMI.
>>         This is only part of the picture. Some monitors inexplicably were
>> unable to be used.(?)The data from the chemical biological radiation
>> National Guard unit helicoptering above TMI was not reported in full.
>> Personal dosimeter read high because they were not 'zeroed' before use
>> (like Jimmy Carter's). I am sorry that I cannot remember all the other
>> interesting and inexplicable things that happened with the radiation
>> monitoring.
>> marvlewis@juno.com
>> Marvin Lewis
>>
>>  --
>
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>
>
>
>
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******************************************************
Steve Frey, Head
Operational Health Physics (OHP) Department
Stanford Linear Accelerator Center (SLAC)
Phone:(650) 926-3839 (office),
      (650) 926-3030 (fax),
E-mail address: sfreyohp@SLAC.Stanford.EDU
Any thoughts expressed here are not meant 
to speak for SLAC or any other party in any 
capacity unless so stated.
*******************************************************
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html