Speaker
Description
The New Experiments With Spheres-Gas (NEWS-G) uses a spherical proportional counter filled with a light noble gas mixture to directly detect light dark matter particles. The detector consists of a large sphere, equipped with a high-voltage 11-anode sensor, the “ACHINOS”, to detect electrons from ionizing radiation. The current electronics setup limits the readout to two channels, combining the 5 top anodes and the 6 bottom anodes as the north and south channels, respectively. Having the ability to separately detect electrons from the 11 (or more) anodes will provide the NEWS-G detector with directional sensitivity; this will be a significant asset for discriminating against the ultimate challenge posed by the solar neutrino background in dark matter searches. In this presentation, a new scalable electronics design for the readout of the 11-anode sensor currently being built at the University of Alberta will be presented. The testing of this new electronics layout on a small-scale NEWS-G detector in the Piro Lab will be discussed, as well as future plans for scalability beyond 11 channels.
| Keyword-1 | Dark Matter Experiment |
|---|---|
| Keyword-2 | Gaseous Detector |
| Keyword-3 | Electronic Readout |