Design of a 10 MeV beamline at the Upgraded Injector Test Facility for e-beam irradiation

Electron beam irradiation with energy less than or close to 10 MeV is suitable and sustainable for the wastewater treatment. The Upgraded Injector Test Facility (UITF) at Jefferson lab is a CW superconducting linear accelerator capable of providing an electron beam of energy up to 10 MeV. To investigate degradation of the organic compound pollutants, a wastewater treatment beamline at UITF has been designed by using the code GPT (General Particle Tracer). The electron beam is assumed to have 8 MeV electron energy and the transverse radius of sigma around 0.8 to 0.9 cm. It has been found that the rms (by second central moment) energy spread induced by the accelerating cavity is less than 74.5 keV in the simulations. The space charge effect doesn’t affect the beam quality for 100 nA beam current.