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От
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Алекс Антонов
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К
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А.Никольский
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Дата
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26.11.2006 14:53:35
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Рубрики
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Современность;
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Re: а где...
http://www.2spi.com/catalog/photo/statmaster.shtml
"...The ionizing unit is charged with 200 microcuries of polonium 210 at the time the unit is manufactured. The half life of polonium is approximately 138 days, according to published sources we could find, so after the ionizing units are several months old, you would certainly be within the limits of a 250 microcurie license.
The polonium element is encased in a stainless steel housing. The alpha particle range is about 1.5" / 3.8 cm from the element, although controlled air flow can considerably extend the effective range of the static neutralization. Polonium -210 is present in the "element" at a level of 200 microcuries..."