Speaker
Description
New Experiments With Spheres-Gas (NEWS-G) direct dark matter search experiment is using spherical proportional counters filled with light noble gases, enabling sensitivity to very low-mass dark matter parameter space. It is equipped with a high-voltage 11-anode sensor “ACHINOS”, to detect electrons from ionizing radiation from only two combined channels currently. Independent readout of the 11 anodes would enable directional sensitivity in the NEWS-G detector, a key capability for discriminating dark matter signals from solar neutrino backgrounds. To detect signals from each anode of the ACHINOS, a new low-noise charge-sensitive preamplifier has been developed at the University of Alberta and tested with a small-scale NEWS-G detector in the Piro Lab. The analysis and processing of the signal have been performed with a new modular data analysis framework, which will be presented. Preliminary results show an improved event selection and promise for future multi-anode readout scalability. These results also provide quantitative feedback for hardware refinement and establish analysis tools needed for scalable, multi-channel spherical proportional counter readout.
| Keyword-1 | Dark Matter Experiement |
|---|---|
| Keyword-2 | Charge-sensitive preamplifier |
| Keyword-3 | Signal and waveform analysis |