RISPOLI, ROSANNAROSANNARISPOLIDE ANGELIS, ElisabettaElisabettaDE ANGELIS2024-06-252024-06-252016http://hdl.handle.net/20.500.12386/35240In the frame of UV rejection capability for Neutral Particle Instrument (ELENA) a shutter system has been used with two identical nanometric slits membranes acting as UV grating. A dedicated campaign and test plan has been prepared to investigate the effect of the ELENA shutter membranes distance to reject UV Ly-alfa performanceELETTRONICOenResearch reportFIS/05 - ASTRONOMIA E ASTROFISICAERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation