For a He:CF4 optical TPC, an extra electrode below the last GEM doubles the light yield, and 1.6% SF6 enables negative-ion drift with diffusion as low as 45 µm/√cm.
Directional Dark Matter Searches with Carbon Nanotubes
1 Pith paper cite this work, alongside 4 external citations. Polarity classification is still indexing.
1
Pith paper citing it
4
external citations · Pith
abstract
A new solution to the problem of dark matter directional detection might come from the use of large arrays of aligned carbon nanotubes. We calculate the expected rate of carbon ions channeled in single-wall nanotubes once extracted by the scattering with a massive dark matter particle. Depending on its initial kinematic conditions, the ejected Carbon ion may be channeled in the nanotube array or stop in the bulk. The orientation of the array with respect to the direction of motion of the Sun has an appreciable effect on the channeling probability. This provides the required anisotropic response for a directional detector.
fields
physics.ins-det 1years
2025 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Optimisation of amplification and gas mixture for directional Dark Matter searches with the CYGNO/INITIUM project
For a He:CF4 optical TPC, an extra electrode below the last GEM doubles the light yield, and 1.6% SF6 enables negative-ion drift with diffusion as low as 45 µm/√cm.