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ALBA is a 3GeV third generation Synchrotron Radiation (SR) Facility currently under construction in Cerdanyola del Vall's, Barcelona, Spain. The Storage Ring is to deliver as high as possible photon flux densities on the samples. To this end the Storage Ring has been designed to have an electron beam emittance of ca. 4.5 nm.rad and, in spite of a relatively small perimeter, a significant number of straight sections in which to house Insertion Devices (IDs). The injector complex consists of a 100 MeV LINAC and a small emittance (ca. 9 nm.rad), full energy, 3 GeV, Booster. It is intended to operate the accelerator complex in a top-up mode from the very beginning of its operation. The project started in earnest in 2004 and its completion with seven beam-lines (BLs) in its initial phase, is expected by 2009, so that routine user operation can start in 2010. [ABSTRACT FROM AUTHOR]

We present a model to estimate the synchrotron radio emission generated in microquasar (MQ) jets due to secondary pairs created via decay of charged pions produced in proton-proton collisions between stellar wind ions and jet relativistic protons. The synchrotron radiation produced by secondary electrons/positrons is computed using consistently derived particle energy distributions. Energy losses due to synchrotron and inverse Compton (IC) processes, and adiabatic expansion, are taken into account. The space parameter for the model is explored and the corresponding spectral energy distributions (SEDs) are presented. We conclude that secondary leptonic emission represents a significant though hardly dominant contribution to the total radio emission in MQs, with observational consequences that can be used to test some still unknown processes occurring in these objects as well as the nature of the matter outflowing in their jets. [ABSTRACT FROM AUTHOR]