Cyclotron
First Claim
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1. A non-superconductive cyclotron for accelerating a beam of particles in a magnetic flux, the accelerated particle beam having a pre-selected axial dimension, comprising:
- magnetic circuit means having at least three sectors, said sectors defining hills;
spaces separating said hills, said spaces defining valleys;
a first air gap in said hills, said first air gap having an axial dimension close to the preselected axial dimension of the accelerated particle beam with the magnetic flux being essentially concentrated in said first gap;
a second air gap in said valleys, said second air gap having a very large axial dimension relative to said first air gap so that the magnetic flux in said second air gap is substantially zero; and
a substantially circular single pair of annular windings substantially surrounding said hills and said valleys.
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Abstract
A non-superconductive cyclotron comprises a magnetic circuit comprising at least three sectors called "hills", wherein the air-gap is reduced to a size similar to that of the accelerated beam and wherein the magnetic flux is substantially concentrated. The hills are separated by spacings configured like sectors called "valleys" wherein the air-gap is a very large size so that the magnetic flux is essentially null. The magnetic circuit is further comprised of a single pair of coils which are substantially circular and surround the hills and valleys.
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Citations
10 Claims
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1. A non-superconductive cyclotron for accelerating a beam of particles in a magnetic flux, the accelerated particle beam having a pre-selected axial dimension, comprising:
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magnetic circuit means having at least three sectors, said sectors defining hills; spaces separating said hills, said spaces defining valleys; a first air gap in said hills, said first air gap having an axial dimension close to the preselected axial dimension of the accelerated particle beam with the magnetic flux being essentially concentrated in said first gap; a second air gap in said valleys, said second air gap having a very large axial dimension relative to said first air gap so that the magnetic flux in said second air gap is substantially zero; and a substantially circular single pair of annular windings substantially surrounding said hills and said valleys. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification