Alpha spectroscopy. Scientist loading a sample that has been dried onto a metal disc into an alpha spectrometer. Alpha spectrometry is used to test for,and measure,alpha decay from atomic nuclei. Alpha decay is the emission of an alpha particle,which consists of two protons and two neutrons. It is a form of radioactive decay. Different elements emit alpha particles at different characteristic energies. It is these energies that the spectrometer measures and records. Alpha spectroscopy can be used to determine radiation levels in environmental and waste samples. Photographed at the National Physical Laboratory,Teddington,UK | |
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Credit: | Science Photo Library / Brookes, Andrew / National Physical Laboratory |
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