MOMENT METHOD BEAM DYNAMICS CODE DEVELOPMENT: EXTENDED FOR RADIO FREQUENCY QUADRUPOLE SIMULATIONS

A Radio Frequency Quadrupole (RFQ) enables acceleration of a continuous low-velocity hadron beam, combining velocity independent electric focusing and adiabatic bunching, resulting in high-current compact bunches with nearly 100% capture and transmission efficiency. Fast and accurate beam dynamics simulations are of paramount importance during the design, commissioning and operation of an RFQ. This article presents the implementation of an RFQ beam line element (BLE) into V-Code, a moment method beam dynamics simulation code with precision and efficiency advantages when calculating average or rms beam dimensions, projected emittances or total energy. Both the BLE implementation methods and a successful simulation of an exemplary section of the MYRRHA RFQ are discussed in this article.