FIELD: physics.
SUBSTANCE: present invention relates to acceleration engineering and specifically to isotope production systems, including a cyclotron. In the present invention, the cyclotron includes a magnet yoke that has a body that surrounds an acceleration chamber. The cyclotron also includes a magnet assembly to produce magnetic fields to direct charged particles along a desired path. The magnet assembly is located in the acceleration chamber. The magnetic fields propagate through the acceleration chamber and within the magnet yoke, wherein a portion of the magnetic fields escapes outside of the magnet yoke as stray fields. The cyclotron also includes a vacuum pump that is connected to the yoke body. The vacuum pump is configured to create a vacuum in the acceleration chamber.
EFFECT: magnet yoke is has dimensions such that the vacuum pump does not experience magnetic fields in excess of 75 Gs.
22 cl, 10 dwg
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