The objective of this task is to find answers and to test techniques essential for the design of the seeding and high-gain harmonic-generation (HGHG) mechanisms of the new VUV-X-ray FELs in Europe. The issues are important for the aim of increasing the stability, coherence and wavelength region of these FELs. Both theoretical investigations and tests with prototypes of new hardware will be performed. Special attention will be made to make use of available infrastructure in these tests.
The first half annual meeting was held together with DS3 in Paris May 2005.