Generation of Medical X-ray and Terahertz Beams of Radiation Using   Table-Top Accelerators
  Theoretical and experimental studies of PXR and diffracted radiation of an oscillator in crystals combined with the development of VFEL generators with photonic crystals give a promising basis for creation of X-ray and THz sources using the same table-top accelerator. Multi-modal medical facility can be developed on the basis of one dedicated table-top electron accelerator of some tens of MeV energy. Such a system could find a lot of applications in medical practice and biomedical investigations. 
V.Baryshevsky, A.Gurinovich, E. Gurnevich, A.Lobko
physics.acc-ph physics.med-ph