Free electron laser – A fourth-generation synchrotron light source [video]
I still don't understand why we need such a thing. Every single interaction that is involved with protein folding or any chemical or molecular process can be calculated "ab initio" via QED (Quantum Electro Dynamics). So why not just build big computers and be done with it? If there is any macroscopic effect that can be exploited, we still can prove that the theory works and won't need a super powerful FEL for it.