Mr
Alasdair McLean
(University of Sheffield), Mr
Robert Renz Marcelo Gregorio
(University of Sheffield)
In the context of CYGNUS consortium R&D work towards large scale direction sensitive detectors for dark matter and nucleus-neutrino coherent scattering experiments, we present gain and functionality results on the use of new high gain MM-ThGEM charge amplification devices with negative ion SF$_6$, CF$_4$ and SF$_6$:CF$_4$:He mixtures towards atmospheric pressure. The device is designed for...