Re: RE(2): Dateline NBC TMI story A different evaluation

["Franz Schoenhofer" <franz.schoenhofer@CHELLO.AT>]

Private:

Franz Schoenhofer

Habicherg. 31/7

A-1160 Vienna, AUSTRIA

Phone: -43 699 11681319

e-mail: franz.schoenhofer@chello.at



Office:

MR Dr. Franz Schoenhofer

Federal Ministry for Agriculture, Forestry, Environment and Water Management

Dep. I/8U, Radiation Protection

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fax: +43-1-7122331

e-mail: franz.schoenhofer@bmu.gv.at







-----Ursprüngliche Nachricht-----

Von: Dimiter Popoff <tgi@cit.bg>

An: radsafe@list.vanderbilt.edu <radsafe@list.vanderbilt.edu>

Datum: Sonntag, 19. August 2001 14:21

Betreff: RE(2): Dateline NBC TMI story A different evaluation





>

>

>Emil,

>

>>1.1 The river was/is taken everything out to the

>>Dnepr River => Kiev Water Reservoir => Black Sea.

>

>You may well be right, I believe. One or two years ago I was playing with

>a customers HPGe detector - 15%, no shielding (actually it was a portable

>one). At some point I put a pack of kitchen salt claiming to be K enriched,

>stored the spectrum with the 40K peak I had, then put another pack of

Bulgarian

>salt which claimed nothing (the K enriched was imported). The plain salt

>had indeed much less 40K; but it turned out to have also a distinct 137Cs

>peak at 661.6 keV... I did not quantitavely determine it, but it was

clearly

>visible without shielding around the detector... I am almost sure the salt

>was of Black Sea origin (I do not remember wether I read it on its package

>or did I just believe so, however).





Dimiter,



Ok, you say, you were playing around. Playing around really describes, what

you have been doing. You do not know, which samples you measured, you do not

know, where they came from. You did not determine the Cs-137 quantitatively.

You had no shielding around your detector!!!!! You are almost sure, that the

salt was of Black Sea origin. "Almost sure"!!!! You do not mention where you

performed your playing around. What a surprise that the potassium-enriched

salt showed potassium!



So what are you going to prove? Where is your connection to the Chernobyl

accident? Whereever you do any gamma-measurements in the field you will find

Cs-137 in the background, whether you measure salt or anything else. You did

not determine Cs-137 quantitatively, which implies that you did not take any

background measurements. Do you want to say, that Black Sea Salt - though

you do not even know, whether you measured some - contains Chernobyl Cs-137?

Where is the prove? Is there really a salt industry on the Black Sea?



I really do not understand what your message is!



Franz





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