Author/Authors :
Barbeau، نويسنده , , P.S and Collar، نويسنده , , J and Miyamoto، نويسنده , , J and Shipsey، نويسنده , , I، نويسنده ,
Abstract :
We report the first measurements of electron transparency, ion transparency and ion feedback of a mass produced 3M GEM. Our results indicate that a mass produced GEM and a CERN GEM have similar values of these three quantities.
