Generating 10~40MeV high quality monoenergetic electron beams using a   5TW 60fs laser at Tsinghua University
  A unique facility for laser plasma physics and advanced accelerator research has been built recently at Tsinghua Universtiy. This system is based on Tsinghua Thomson scattering X-ray source (TTX), which combining an ultrafast TW laser with a synchronized 45MeV high brightness linac. In our recent laser wakefield acceleration experiments, we have obtained 10~40MeV high quality monoenergetic electron beams by running the laser at 5TW peak power. Under certain conditions, very low relative energy spread of a few percent can be achieved. Absolute charge calibration for three different scintillating screens has also been performed using the linac system. 
J. F. Hua, L. X. Yan, C. H. Pai, C. J. Zhang, F. Li, Y. Wan, Y. P. Wu,   X. L. Xu, Y. C. Du, W. H. Huang, H. B. Chen, C. X. ...
physics.acc-ph