Background optimization for a new spherical gas detector for very light WIMP detection

Not scheduled
15m
Beurs van Berlage

Beurs van Berlage

Poster Experiments: 2d) Dark Matter Detectors

Speaker

Mr ALI DASTGHEIBI FARD (CNRS/IN2P3/LSM (FR))

Description

The Spherical gaseous detector (or Spherical
Proportional Counter, SPC) is a novel type of particle detector, with a
broad range of applications. Its main features include a very low
capacitance, then a potential low energy threshold independent of the
volume, a good energy resolution, robustness and a single detection
readout channel. Applications range from radon emanation gas
monitoring, neutron flux and gamma counting and spectroscopy to dark
matter searches, in particular low mass WIMP's and
coherent neutrino scattering measurement. Laboratories interested in
these various applications share expertise within the NEWS (New
Experiments With Sphere) network. SEDINE, a low background spherical
detector installed at underground laboratory (LSM) is currently being
operated and aims at measuring events at very low energy threshold,
around 100 eV. We will present the energy calibration with $^{37}$Ar,
the obtained energy resolution with different gas mixtures at different
pressures, background reduction using pulse shape analysis, measurement
of detector background and its interpretation, and show anticipated
sensitivities for dark matter search with SEDINE.

Primary author

Mr ALI DASTGHEIBI FARD (CNRS/IN2P3/LSM (FR))

Co-authors

Dr GILLES GERBIER (CEA/IRFU/SPP (FR)) Dr IOANNIS GIOMATARIS (CEA/IRFU/SEDI (FR))

Presentation Materials

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