FREE ELECTRON LASER DRIVEN BY A HIGH-ENERGY HIGH-CURRENT ENERGY-RECOVERY LINAC

The proposed electron-hadron collider LHeC, based on an energy recovery linac, employs an electron beam of 20mA current at an energy of tens of GeV. This electron beam could also be used to drive a free electron laser (FEL) operating at sub-Angstrom wave lengths. Here we demonstrate that such FEL would have the potential toprovideordersofmagnitude higher peak power, peak brilliance and average brilliance, than anyother FEL,either existing or proposed