Electron stopping power showcases its potential

Dealing with nuclear waste, mastering cancer radiotherapy or withstanding cosmic radiation in space could easily be mistaken for very different issues, sharing only their importance for the future of humanity. Yet, there is one process, called electron stopping, that if better understood could help solve all these problems. An EU project made fundamental progress in this regard.

As ions go through solids, liquids and gases, a process of neutralisation and energy loss takes place. This process is called electron stopping, and it’s fundamental to better understanding the properties of matter, which certainly explains why it has been extensively studied for over a century and is now largely understood… At least when it comes to systems close to equilibrium.

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