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RE: Water Irradiation?
Dave,
Unless they sampled and cultured the organism we will not know. There are a
number of organisms that can resist harsh environments, besides radiation.
In food irradiation, doses into the kGy range have to be used. To reduce to
90% of the E.coli in beef at 5 degrees C requires 0.3 kGy or 30 krad. And
there are still survivors.
-- John
-----Original Message-----
From: Neil, David M [mailto:neildm@id.doe.gov]
Sent: Wednesday, July 10, 2002 12:29 PM
To: Jacobus, John (OD/ORS); 'Franta, Jaroslav'; Radsafe (E-mail)
Subject: RE: Water Irradiation?
Maybe you're referring to _Deinococcus_radiodurans_ (?) that is quite
radiation resistant.
http://www.pnl.gov/er_news/08_98/art2.htm
Dave Neil
neildm@id.doe.gov
-----Original Message-----
From: Jacobus, John (OD/ORS) [mailto:jacobusj@ors.od.nih.gov]
Sent: Wednesday, July 10, 2002 8:27 AM
To: 'Franta, Jaroslav'; Radsafe (E-mail)
Subject: RE: Water Irradiation?
Jaro,
I think I remember hearing that some spend fuel pools were contaminated with
bacteria. Does any one who works in nuclear power on this list recall this?
-- John
John Jacobus, MS
Certified Health Physicist
3050 Traymore Lane
Bowie, MD 20715-2024
E-mail: jenday1@email.msn.com (H)
-----Original Message-----
From: Franta, Jaroslav [mailto:frantaj@AECL.CA]
Sent: Wednesday, July 10, 2002 8:52 AM
To: Radsafe (E-mail)
Subject: RE: Water Irradiation?
. . .
I've pondered before on this question - could we use spent fuel as a gamma
source for irradiating water? Piping networks that pass in between spent
bundles in the used fuel pool. The water would be at normal pumping
pressure (say 200 kPa) so any leaks would be out of the tubes and into the
fuel bay.
. . .
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