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Reference.org
Alpha-particle spectroscopy
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<p>Alpha spectrometry (also known as alpha(-particle) spectroscopy) is the quantitative study of the energy of <a href="/facts/Alpha_particle/dzNMs9WP">alpha particles</a> emitted by a radioactive nuclide that is an <a href="/facts/Alpha_decay/rCsHNIUE">alpha emitter</a>. </p><p>As emitted alpha particles are mono-energetic (i.e. not emitted with a spectrum of energies, such as <a href="/facts/Beta_decay/vxTBlckp">beta decay</a>) with energies often distinct to the decay they can be used to identify which radionuclide they originated from. </p>