Method For Designing A Radio-Frequency Cavity, In Particular To Be Used In A Cyclotron, Radio-Frequency Cavity Realised Using Such A Method, And Cyclotron Using Such A Cavity

摘要

The invention relates to a method for designing a radio-frequency cavity, in particular to be used in a cyclotron, radio-frequency cavity (2) comprising a conductive enclosure or “liner” (3) connected by at least two essentially inductive elements or “stems” (4) to a capacitive electrode (2′), the method being characterised in that it comprises the following subsequent steps: A. subdividing the volume of said radio-frequency cavity (2) in a number of sub-cavities (10,20,30) corresponding to at least two stems (4), each sub-cavity comprising a respective (stem4); B. imposing a condition of magnetic orthonormality on the separation surfaces between said at least two sub-cavities (10,20,30); C. independently for each of said at least two sub-cavities (10,20,30), calculating the size and/or the position of the respective stem (4) with respect to the physical conditions at the boundaries. The invention further relates to a radio-frequency cavity realised using the method according to the invention, and a cyclotron using such a cavity.