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cyclotron |
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cyclotron [sī′klətron] Etymology: Gk, kyklos + electron, amber a device used to accelerate charged particles or ions. The particles bombard targets where they create radioactive species, which can be used as radiopharmaceuticals or to make neutrons for radiotherapy. cyclotron (sī´kl n a device for accelerating charged particles to high energies by means of an alternating electrical field between electrodes placed in a constant magnetic field. cyclotron Radiation therapy A device used to accelerate charged particles–eg, protons to higher energy levels, in which a magnetic field causes the particles to orbit, which are accelerated by an oscillating electric field. Cf
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| Radioactive elements are generated by particle accelerators known as cyclotrons. Micro-SPECT: Unlike PET, micro-SPECT systems use radiopharmaceuticals that have longer half-lives and do not require the need for cyclotrons to generate a marker. To compete with cyclotrons, however, the new accelerators need larger lasers. |
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