DUMP OF THE BEAM AT LINEAR ACCELERATORS

Linear or circular accelerator systems are used to have very high energetic beams at the order of GeV or TeV. With the electromagnetic field applied to the Superconducting or normal conducting accelerating cavities allow the electron beam to gain energy, while the electron beam also loses some of its energies throughout the accelerating system. To trap the electron beam that lost its energy and to measure the beam current an instrument that is called Faraday Cup is placed under the ground in the accelerator system hall. In this study, electron beam parameters that are optimized by utilizing Astra Code are used to determine Faraday Cup's sizes and material properties [1]. Astra Code is used to track particles along the beamline and also transverse directions for all phase space. For whole accelerator system, Faraday Cup design is simulated and desired simulation measurement studies are configured in four location along the beamline. These four locations are at the exit of the photocathode gun, right after the buncher, entrance of the undulator, and after the undulator. At these locations, energy distribution of the beam versus beamline, radiation dose of the beam, and beam currents through the beam directions are studied and simulated in more detailed way by using FLUKA code [2]. Depending on the beam energy, Faraday Cup's sizes are changing to able to trap particles.