Author/Authors :
Miyamoto، نويسنده , , J and Shipsey، نويسنده , , I and Martoff، نويسنده , , C.J and Katz-Hyman، نويسنده , , M and Ayad، نويسنده , , R and Bonvincini، نويسنده , , G and Schreiner، نويسنده , , A، نويسنده ,
Abstract :
The first operation of GEM gas gain elements in negative ion gas mixtures is reported. Gains up to several thousand were obtained from single-stage GEMs in CS2 vapor at low pressure, and in mixtures of CS2 with Argon and Helium, some near 1 bar total pressure.
Keywords :
Negative ion TPC , WIMP , Dark matter , GEM , drift
