Har oönskade döttrar radon?
Radondöttrar är de radioaktiva isotoperna av polonium, vismut och bly, som bildas i den radioaktiva sönderfallskedjan efter radon. Den radioaktiva isotopen radon-222 uppstår i sönderfallskedjan av uran-238 i berggrunden.
What is radon-220?
Radon-220 is a radioisotope of radon. Radon-220 is commonly referred to as thoron, since it is a natural decay product of the most stable thorium isotope (thorium-232). Radiation Dosimetry Radon-220 is a radioisotope of radon.
What is radon?
It is a radioactive, colorless, odorless, tasteless noble gas. It occurs naturally in minute quantities as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead and various other short-lived radioactive elements. Radon itself is the immediate decay product of radium.
What is the half life of the Radon isotope 220?
A trace amount of the (highly unstable) isotope 218 Rn is also among the daughters of 222 Rn. Three other radon isotopes have a half-life of over an hour: 211 Rn, 210 Rn and 224 Rn. The 220 Rn isotope is a natural decay product of the most stable thorium isotope ( 232 Th), and is commonly referred to as thoron.
What happens when radon-222 decays?
MAJOR RADIATIONS OF RADON-222 AND DAUGHTERS The decay of radon leaves a metal ion in the place of a noble gas atom. The behavior of the first and subsequent daughters differs from that of radon in all media, but the behavior of these nuclides in air is of special interest.
Hur vet man om det finns radon i huset?
Hur vet jag om det finns radon i mitt hus eller min lokal? Att mäta är det enda sättet att ta reda på om det finns radon i ett hus eller en lokal. Radonhalten mäts i Becquerel per kubikmeter inomhusluft (Bq/m3). 1 Bq/m3 innebär att en atom sönderfaller per sekund i varje kubikmeter luft.