ENS



 

Alpha Particle

scroll

Positively charged particle emitted by various radioactive materials during decay. It consists of two neutrons and two protons, and is thus identical to the nucleus of a helium atom. The rest mass of the alpha particle amounts to 6.64424·10-27 kg, or 3.7273·109 eV. Alpha radiation is the radiation with the lowest penetration potential of the three radiation types (alpha, beta, gamma radiation). Alpha radiation can already be stopped by a sheet of paper and is only dangerous for living creatures if the substance emitting alpha rays is inhaled or ingested with food or enters wounds.

back

 

 

 


 

 


 

ENS conferences

 
TopSafe 2017

TopSafe 2017
12-16 Feb. 2017
Vienna, Austria

PIME 2017

PIME 2017
19 - 22 March 2017, Middelburg Netherlands

RRFM 2017

RRFM 2017
14 - 18 May 2017 in Rotterdam, Netherlands

ETRAP 2017

ETRAP 2017
30 May - 2 June 2017, Valencia, Spain