Construction of Magnetic Dichroism Beam Line in Trieste

The described synchrotron radiation beam line, based on a double monochromator with different incidence angles, has been devised to ally in a short length the working possibilities of both vacuum ultraviolet and soft X-ray monochromators as well as to preserve the degree of circular polarization of the radiation emitted by the source. The design philosophy and the predicted performances of the diffraction and the focusing systems are described and the heat load on the beam line optical elements is discussed. Some practical details concerning the beam line, now under construction, are presented.