Re: [Phys-l] radiation

[Bernard Cleyet <bernardcleyet@redshift.com>]

On 2012, Feb 02, , at 17:12, ludwik kowalski wrote:

> About 20 years ago I did what is suggested Mike, together with a  
> colleague from the Biology department. Someone brought him dry  
> mushrooms  from eastern  Poland. They were collected about hundreds of  
> miles from Chernoble. We put them on top of the NaI crystal and waited  
> about 5 minutes. This was enough to produce the well formed Cs-137 peak.

Among the mushrooms, the most effective according to:


http://www.healwithfood.org/articles/mushrooms-radioactive-cesium-nuclear.php

The other :


http://www.healwithfood.org/articles/foods-radioactive-contamination-risk.php

And in the news:

http://www.dailymail.co.uk/sciencetech/article-2002415/Radioactive-mushrooms-contaminated-Chernobyl-disaster-seized-British-port.html


For those (including bc) who lack an apprehension of Bk's,   the 6kBk/kg is ~ 1.6 microCi/kg -- the exempt quantity for a sealed source is 10 microCi:

https://docs.google.com/viewer?a=v&q=cache:-5HY7KcVS_sJ:www.ortec-online.com/download/Exempt-Quantity-Sealed-Radioactive-Sources.pdf+exempt+cesium+137&hl=en&gl=us&pid=bl&srcid=ADGEESh7EpvraFNfMq1bKhI_h4kkC33qjMcu6jXKnrqUu4HJRFD_sl-yMr1jez5TxzaUh5uNff0qlg04nZSUP-uFyNR5V1SrNQanbs1pEi7uBwgxB-us27XuMh4zcQP8nwQkD5_4qe5L&sig=AHIEtbSW_u_HpXmkwQmqgkcuyuh6lq2b9g


> When the stepfather of my neighbor heard the story he suggested I do  
> the same for dry mushrooms he had; they were gather in New Jersey, one  
> year earlier. And guess what? After waiting 5 minutes, at nearly the  
> geometry, we saw the Cs-137 peak again. But it was one third the size.  
> I suppose the entire world was contaminated in 1960's by atomic bomb  
> tested in the atmosphere.
>
> Ludwik
> = 

bc has a pkg. (from costco) of dried banana chips -- he's going to, also, try their mushrooms.