Bertaina, M.M.BertainaCaruso, R.R.CarusoCATALANO, OSVALDOOSVALDOCATALANOCONTINO, GIOVANNIGIOVANNICONTINOFenu, F.F.FenuMignone, M.M.MignoneMulas, R.R.MulasJEM-EUSO Collaboration2020-06-012020-06-0120160168-9002http://hdl.handle.net/20.500.12386/25848The trigger system of JEM-EUSO is designed to meet specific challenging requirements. These include managing a large number of pixels ( 3·10^5) and using a very fast, low power consuming, and radiation hard electronics. It must achieve a high signal-to-noise performance and flexibility and cope with the limited down-link transmission rate from the International Space Station (ISS) to Earth. The general overview of the First Level Trigger for cosmic ray detection is reviewed; tests that validate its performance are discussed.STAMPAenArticle10.1016/j.nima.2015.10.0442-s2.0-84965108725000375408700088https://www.sciencedirect.com/science/article/pii/S0168900215012565?via%3Dihub2016NIMPA.824..253BFIS/05 - ASTRONOMIA E ASTROFISICA