SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Electron accelerator used in the sterilisation of medical waste. A bag of such waste (red) has been placed in a cavity on a wheel. The bag will be exposed to the electron beam in the heart of the accelerator when the wheel is turned. This system ensures that workers have sufficient shielding from the electrons. Electrons are subatomic charged particles which can be made to move if an electric or magnetic field is applied to them. Fast-moving electrons are used in sterilisation because they disrupt the genetic material found in all organisms. Photographed in the Moscow Radiological Institute (MIRAD), Russia.
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