Chris Barty shares some of the work that is being done at at Lawrence Livermore National Laboratory surrounding the development of a new generation of gamma-ray sources called "MEGa-rays." (June 27, 2011)

Tsumoru Shintake talks about the XFEL/SPring-8 machine and the mechanisms it uses such as a single-crystal thermionic-cathode electron gun and an in-vacuum undulatory. (March 7, 2011)