Gamma spectrum of 60Co, observed with a germanium detector. x-axis gauged to energy.
<a href="//commons.wikimedia.org/wiki/User:%D0%94.%D0%98%D0%BB%D1%8C%D0%B8%D0%BD" title="User:Д.Ильин">Д.Ильин</a>: vectorization
<a href="//commons.wikimedia.org/wiki/File:60Co_gamma_spectrum_energy.png" title="File:60Co gamma spectrum energy.png">File:60Co gamma spectrum energy.png</a> by <a href="//commons.wikimedia.org/wiki/User:Traitor" title="User:Traitor">Traitor</a>