Energy losses and efficiency of laser - electron X-ray generator for   medical applications
  A source of medical x-rays based on a 50 Mev storage ring and a quasi-continues picosecond laser is considered. It is shown that such generator produces useful X-ray flux with higher average power and higher efficiency than that of conventional X-ray tubes. The main energy losses are related to coherent synchrotron radiation. Taking this into account the required parameters of the storage ring and injector are determined. 
E.G.Bessonov, R.M. Feshchenko, M.V. Gorbunkov, A.V. Vinogradov   (P.N.Lebedev Physical Institute AS, Moscow, Russia), V.I. S...