Re: FW: Heavy water face spray

["Carlos A. Correa" <correac@cnea.gov.ar>]

The cost of one kilo of heavy water is about 200 US$.



Lic. C.Correa

CNEA

  ----- Original Message ----- 

  From: Franz Schoenhofer 

  To: Carlos A. Correa ; radsafe@list.vanderbilt.edu 

  Sent: Wednesday, July 14, 2004 5:11 PM

  Subject: AW: FW: Heavy water face spray





  This contribution came originally to the RADCHEM list. It is embarrassing how many (though not all) RADCHEM and RADSAFE "experts" obviously did not recognize, that D20 (or better: deuterium) is not radioactive and obviously do not know the difference between deuterium and tritium. 



  My comment to RADCHEM was, that I thought the price of US$ 15 for 2 oz of pure D20 sounding very cheap for me, but I did not receive an answer - anybody on RADSAFE can answer this? Probably our Canadian collegues? 



  The biological effects of replacing hydrogen in cells by deuterium have been discussed a few years ago on RADSAFE extensively. I am sure the discussion can be retrieved from the archives. I remember that this replacement influenced the cells very negatively because of the changed kinetics - not so dramatically like with tritium. But still - even if somebody would be full of deuterium - I sincerely hope, that in no restricted area in any nuclear power plant or any other research institute there would enough neutrons fly around to produce enough tritium to harm the human body. I have not calculated it, but it might be necessary to put the person close to a reactor core - where he would die from other radiation.



  Best regards,



  Franz



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    -----Ursprüngliche Nachricht-----

    Von: owner-radsafe@list.vanderbilt.edu [mailto:owner-radsafe@list.vanderbilt.edu]Im Auftrag von Carlos A. Correa

    Gesendet: Mittwoch, 14. Juli 2004 18:38

    An: radsafe@list.vanderbilt.edu

    Betreff: Re: FW: Heavy water face spray







    The problem with Tritium it is its a beta emitter (electrons).



    Sorry for the missed up. I know D2O it's not radioactive. I was talking about T2O and the activation of D2O produced in nuclear power plants (HWR) by neutron capture. 

    So you could not access a restricted zone if you have ingested D2O.

    That's why I mean that product was just natural water.



    About D2O water it is regulated. Because you can use it to produce a bomb with low % of U235.



    Thanks for the note.



    Lic. C.Correa

    CNEA