Simulations for the FERMI@ELETTRA proposal to generate 40- and 10-nm coherent radiation using the HGHG scheme

We present the results of simulations for a free-electron laser system designed and based on upgraded parameters for the 1.0-GeV LINAC, that in its present form is located at the third-generation synchrotron radiation facility ELETTRA in Trieste, Italy. The calculation is carried out for two of the three beam lines of the project. For the first beam line, the system is based on the HGHG scheme to generate 40-nm coherent radiation by a 200-nm seed laser. For the second beam line we consider cascading the HGHG scheme twice to generate 10-nm radiation.