The \(R\&D\) of a gas detector prototype for high precision tracking of low energy nuclear recoils over large volume is presented in this paper.
The scintillation light accompanying the electronic avalanches in a triple GEM structure is detected by a CMOS-based camera. The sensor provides very high granularity along with a very low noise and high sensitivity. Space resolution of the order of tens of \(\mu\)m were measured on the GEM plane (\({\it x,y}\)).
The Negative Ion Drift method to reconstruct the depth of track within the sensitive volume was studied. Recent tests on beam demonstrated the feasibility of the NID method with a small amount of SF$_6$ even at nearly ambient pressure.
The use of a concurrent light readout by means of a suitable photomultiplier provides the necessary timing informations. A time resolution of the order of 5 ns was measured
Volume 314 -
The European Physical Society Conference on High Energy Physics (EPS-HEP2017) -
Dark Matter (Parallel Session). Coveners: Enrique Araujo; Caterina Doglioni; Alfredo Urbano. Scientific Secretary: Caterina Braggio.
CYGNUS: development of a high resolution TPC for rare events
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Pre-published on:
October 24, 2017
Published on:
March 20, 2018
Abstract
DOI: https://doi.org/10.22323/1.314.0077
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.