New inflector for axial injection in cyclotron

A new type of inflector for the system of axial injection of the cyclotron is presented. Similar to the commonly used spiral and hyperbolic inflectors, the reference particle in the new inflector moves on an electrostatic equipotential surface. The peculiarity is that the particle trajectory is a plane curve, despite the curling affect of a cyclotron magnetic field. The distribution of the inflector electric potential and the shape of the electrodes are expressed by exact analytical formulas. Due to the simple trajectory and analytical frame, the presented inflector may be simpler to use (and may be in its manufacturing) than the spiral inflector. The inflector is more compact as compared with the hyperbolic inflector.