No subject

were
trying to distinguish fire immediately after the explosion were killed =
not
by radiation but by beta burns, caused by Sr-90, which was in nuclear =
fuel
debris and aerosols which were deposited on their protective suits. =
Those
hot particles had extremly high concentrations of not only Sr-90, but =
also
of other radionuclides on a very small surface. "Radioactive water" =
would
have the radionuclides dissolved, any particles would be furthermore
filtered out by any radiation protection gear - or what is the meaning =
of
protective clothing?=20

In my opinion this is just another "urban legend" among the hundreds
distributed about the nuclear accident.=20

Franz

Franz Schoenhofer, PhD
MinRat i.R.
Habicherg. 31/7
A-1160 Wien/Vienna
AUSTRIA


-----Urspr=FCngliche Nachricht-----
Von: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] Im Auftrag von Strickert, =
Rick
Gesendet: Donnerstag, 24. M=E4rz 2011 21:51
An: The International Radiation Protection (Health Physics) Mailing List
Betreff: [ RadSafe ] Fukushima beta radiation burns

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.=A0 =
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." =20

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?)? =20

http://e.nikkei.com/e/fr/tnks/Nni20110324D24JF855.htm=20
http://calgary.ctv.ca/servlet/an/local/CTVNews/20110324/japan-radiation-t=
apw
ater-110324/20110324/?hub=3DCalgaryHome=20


Rick Strickert
Austin, TX
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