Gerhard Kraft, particle therapy inventor. Particle, or heavy ion, therapy is a form of radiotherapy that uses beams of high energy protons, neutrons,

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Gerhard Kraft, particle therapy inventor. Particle, or heavy ion, therapy is a form of radiotherapy that uses beams of high energy protons, neutrons, or positive ions to target cancerous tumours. The particles damage the DNA of the cancer cells, ultimately causing their death. Photographed at the GSI Helmholtz Centre for Heavy Ion Research, Darmstadt, Germany.

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