Keywords: Alphaspektroskopie.JPG An opened up chamber to detect alpha particle with Pu-242 on the filter Geöffnete Alphamesskammer mit Pu-242 auf Filter own work by Cuchullain <br/><small>German WIkipedia http //de wikipedia org/wiki/Bild Alphaspektroskopie JPG</small> 2007-05-04 Cuchullain Cuchullain Alpha particles Files uploaded by D-Kuru |