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cyclotron

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.04 sec.
cyclotron: see particle accelerator particle accelerator, apparatus used in nuclear physics to produce beams of energetic charged particles and to direct them against various targets. Such machines, popularly called atom smashers, are needed to observe objects as small as the atomic nucleus in studies
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cyclotron

Particle accelerator that accelerates charged atomic or subatomic particles in a constant magnetic field. It consists of two hollow semicircular electrodes, called dees, in a large evacuated cylindrical box. An alternating electric field between the dees continuously accelerates the particles from one dee to the other, while the magnetic field guides them in a circular path. As the speed of the particles increases, so does the radius of their path, and the particles spiral outward. In this manner, a cyclotron can accelerate protons to energies of up to 25 million electron volts.
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The concrete was used as shielding material for a small cyclotron in a PET imaging facility that is now under construction in Nagano City.
Fujita Utilizes Low Activation Concrete for Construction of PET ... by JCNN News Summaries
You have to be within striking distance of a cyclotron," says Quake, but these machines are fairly well distributed across the United States.
Microreactor produces radioactive probe in a jiffy by Cunningham, A. / Science News
Leuschner, Indiana University Cyclotron Facility 5:15-5:30 Performance of a New Ultracold Neutron Source at Los Alamos National Lab A.
Precision measurements with slow neutrons: April 5-7, 2004 by Journal of Research of the National Institute of Standards and Technology
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