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An ion-optical design of an isocentric proton and carbon-ion gantry with a compact curved superconducting final bending magnet is presented. In contrast to other existing designs, "hybrid" beam transport systems containing a single superconducting element - the last bending magnet are proposed. All other elements are based on conventional warm technology. Ion-optical properties of such hybrid systems are investigated in case of transporting non-symmetric (i.e. different emittance patterns in the horizontal and vertical plane) beams. Different conditions for transporting the non-symmetric beams are analyzed aiming at finding the most compact gantry versions. The final gantry layouts are presented including a 2D parallel scanning. Matching of the non symmetric beams to rotating ion optical gantry systems is done by the most modern matching technique - a rotator. Design of the rotators that match the ion-optical properties of the final gantry designs is presented as well. The ion-optical and scanning properties of the final gantry designs as well as the ion-optical properties of the rotators are described, discussed and illustrated by computer simulations performed by WinAGILE.
About the author
Ing. Jozef Bokor, PhD. has graduated from the Slovak University of Technology in Bratislava, Faculty of Electrical Engineering and Information Technology in 2012. He has obtained a PhD-degree in Physical Engineering in 2016.
