Microtron
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A microtron is a cyclotron in which the kinetic energy of electrons is increased by a constant amount (e. g. their rest mass of 511 keV) per field change (one half or a whole revolution). They are designed to operate at constant field frequency and magnetic field strength despite notable relativistic effects at higher energies. Thus, power consumption can be much reduced.
[edit] Racetrack microtron
A racetrack microtron does not have the electric field of the classic cyclotron between its dees. Instead, there is a linear accelerator near the edge of the gap between the dees. The remainder of the gap is used for focussing devices. The electron is readmitted to the linear accelerator after each revolution. This procedure can be repeated until the increasing radius of the particle's path makes further acceleration impossible. The particle beam is then deflected into an experiment area or a further accelerator stage. [1]
[edit] Refererences
- ^ (German) MAMI-Prospectus, p. 13ff
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