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is a larger-scale microtron which uses two electromagnets instead of one. Both electromagnets supply a homogeneous magnetic field in a half-circle formed region, and the particles path between both magnets is thus straight. One advantage of this is that the accelerator cavity can be larger, enabling
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In a microtron, due to the electrons' increasing momentum, the particle paths are different for each pass. The time needed for that is proportional to the pass number. The slow electrons need one electric field oscillation, the faster electrons need an integer multiple of this oscillation.
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The linac is placed near the edge of the gap between the dee-shaped magnets. The remainder of the gap is used for focusing devices. The electron is readmitted to the linac after each revolution. This procedure can be repeated until the increasing
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of the particle's path makes further acceleration impossible. The particle beam is then deflected into an experiment area or a further accelerator stage. The world's largest racetrack-microtron is the
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around 1944. The kinetic energy of the particles is increased by a constant amount per field change (one half or a whole revolution). Microtrons are designed to operate at constant field
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Dehn, M.; Aulenbacher, K.; Heine, R.; Kreidel, H. -J.; Ludwig-Mertin, U.; Jankowiak, A. (2011). "The MAMI C accelerator".
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This article is about a type of particle accelerator. For the character of that name in the
Micronauts toy line, see
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in which the accelerating field is not applied through large D-shaped electrodes, but through a
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Particles in a classic microtron get emitted from a source (blue), accelerated once per turn (
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Particles in a racetrack microtron, coming from an external source.
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Microtrons provide high-energy electron beams with a low
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199:Dokl. Akad. Nauk SSSR
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243:Soviet inventions
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