Preliminary simulations of SISSI infrared beamline at Elettra 2.0 diffraction limited storage ring

The broadband nature of IRSR, together with the superior flux and higher brilliance are the key points of IR beamline scientific programs in 3rd generation SR rings. However, it is also well-established that the extraction of IRSR radiation from a bending magnet in the next-generation Diffraction Limited Storage Rings is a challenging task. The Elettra 3rd generation storage ring in Trieste (Italy) is implementing its upgrade program to Elettra 2.0 DLSR, the design of which offers the possibility of a suitable extraction port for IR light, with comparable extraction angles with respect to the present SISSI beamline. In this contribution we will present the results of the preliminary simulations run in Synchrotron Radiation Workshop on the expected performances of SISSI in Elettra 2.0. Considering the spatial constrains and the magnetic layout, also introduced here, two options for the IRSR source will be considered and benchmarked with the current SISSI beamline.