Micromegas micro-TPC for direct Dark Matter search with MIMAC
F. Mayet (1), O. Guillaudin (1), C. Grignon (1), C. Koumeir (1), D., Santos (1), P. Colas (2), I. Giomataris (2) ((1) LPSC Grenoble, (2) CEA, Saclay)

TL;DR
The paper presents the MIMAC project, a multi-chamber micromegas micro-TPC detector designed for direct Dark Matter detection, including recent experimental results on helium quenching and track reconstruction capabilities.
Contribution
It introduces a novel multi-chamber micromegas micro-TPC detector for Dark Matter search and reports initial experimental measurements and track reconstruction simulations.
Findings
First measurement of Helium quenching factor at 1 keV recoil
Successful track reconstruction of alpha particles from Radon impurities
Demonstration of detector's potential for Dark Matter detection
Abstract
The MIMAC project is a multi-chamber detector for Dark Matter search, aiming at measuring both track and ionization with a matrix of micromegas micro-TPC filled with He3 and CF4. Recent experimental results on the first measurements of the Helium quenching factor at low energy (1 keV recoil) are presented, together with the first simulation of the track reconstruction. Recontruction of track of alpha from Radon impurities is shown as a first proof of concept.
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