Design and development of the free electron laser based Delhi light source at IUAC, Delhi

The demand for the photon beams with high brightness and short pulse length is growing in. To address the requirements, a project to develop a compact Light Source based on the principle of Free Electron Laser at IUAC has been taken up. In the first phase of the project, prebunched electron beam of energy ∼ 8 MeV will be produced by a normal conducting photocathode RF gun and coherent THz radiation will be produced by a short undulator magnet. In the second phase, a superconducting RF gun will be developed to increase the average power of the THz radiation. In the last phase, the energy of the electron beam will be increased up to 40 MeV by two sets of superconducting niobium resonators and the coherent IR radiation will be produced by long undulator magnets.The same beam will be used to produce X-rays by Inverse Compton Scattering. Presently, efforts are on to develop the Phase-I of the project. This paper will present the details and the status of the facility