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Re^2: [OT over OT] Re: [OT] What is "the German Institute for Security in Information Technology"?

by Zaxo (Archbishop)
on Aug 01, 2007 at 03:47 UTC ( #629960=note: print w/ replies, xml ) Need Help??


in reply to Re: [OT over OT] Re: [OT] What is "the German Institute for Security in Information Technology"?
in thread [OT] What is "the German Institute for Security in Information Technology"?

Bq is Bequerel, but I can't exactly recall its definition. I think it's either the number or energy of emissions per unit of time. My nuke books are all buried at the moment and CRC is unhelpful on the subject.

The data for massive radiation exposure came from Hiroshima and Nagasaki. It was not really possible to seperate radiation injury from blast and heat with any exactness. Lower level exposure data mostly comes from medical radiation treatment records. Those are generally distorted by the presence of cancer.

There is a big difference between external radiation exposure and the more dangerous incorporation of emitters in tissue. The latter is the case with Radon gas. Its alpha emission is stopped and absorbed by any amount of clothing or moisture or outer skin, but any that decays in the lungs injures the live cells and deposits radioactive heavy metals (Polonium isotopes) which do further damage while decaying to lead. Chemically toxic, too. Nasty stuff.

Obviously, controlled experiments can't be conducted in this realm.

After Compline,
Zaxo


Comment on Re^2: [OT over OT] Re: [OT] What is "the German Institute for Security in Information Technology"?
Re^3: [OT over OT] Re: [OT] What is "the German Institute for Security in Information Technology"?
by BrowserUk (Pope) on Aug 01, 2007 at 04:45 UTC
    Obviously, controlled experiments can't be conducted in this realm.

    Well no, not on humans at least. But the medical profession seem to be pretty good at extrapolating data derive from animal experiments. Whilst these may be controversial now, back in the 40s, 50s and 60s when most of the information relating to radiation effects was first being discovered and catalogued, there were fewer concerned about such things, but in the limited reading I did, I found very little reference to long term studies of that type.

    Maybe they were done before electronic media was commonplace and so have never made the transition. Even so, you might expect to find some references. Or maybe they were all classified and haven't reached their declassification dates yet. Or maybe I just didn't look hard enough, or in the right places.


    Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
    "Science is about questioning the status quo. Questioning authority".
    In the absence of evidence, opinion is indistinguishable from prejudice.

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