Conceptual design for a high intensity (5 mA) industrial cyclotron


The author proposes a preliminary design for a 40 MeV fixed energy proton cyclotron with a maximum intensity of 5 mA. Special emphasis is put on a simple and reliable design, and on low operating costs. The proposed cyclotron has four separated sectors and is basically similar to the SIN injector II. However, for this energy acceptable betatron frequencies are obtained up to the maximum intensity with 36 degrees rather than 26 degrees sector angle. Two 45 degrees dees provide an average energy gain of 1 MeV/turn, with two flat-topping cavities. The main acceleration frequency is 30 MHz (flat-topping at 90 MHz), allowing the use of inexpensive RF power amplifiers. The electrostatic deflector includes a low-interception septum, made of carbon fiber wires. The beam is injected from a high brightness, miniature ECR source, located at the center and biased at 100 kV.Anglai

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This paper was published in DIAL UCLouvain.

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