In this seminar we will discuss the main features of the ACTAR - active target demonstrator, recently installed at LNS. After a long test phase performed in december 2018 by using a large variety of tandem beams and gases, we are currently collecting new data on nuclear reactions and scattering at low energies in inverse kinematics. Some very preliminary results will be discussed, together with the main points of new proposals to be performed in the next future making use of cyclotron beams at LNS.