May 24 – 28, 2021
America/Vancouver timezone

Electroluminescence measurements in He, CF4 and iso-butane mixtures for directional dark matter searches with the CYGNO Time Projection Chamber

May 26, 2021, 8:24 AM
18m
Parallel session talk Sensors: Gaseous Detectors Sensors: Gaseous Detectors

Speaker

Dr Fernando Amaro (LIBPhys - Coimbra University)

Description

CYGNO (a CYGNus TPC with Optical readout) fits into the wider CYGNUS proto-collaboration, developing a ton scale Galactic Nuclear Recoil Observatory with directional sensitivity for Dark Matter searches below the Neutrino Floor and Solar Neutrino Physics. Located at Gran Sasso National Laboratory (Italy), CYGNO will operate a TPC readout by a Micro Pattern Gaseous Detector ensuring charge multiplication and electroluminescence (EL) production. The visible component of the EL is collected by a sub-mm position resolution scientific camera, enabling particle identification and track reconstruction capability, crucial to measure nuclear recoils direction.
In this work the EL produced in a Gas Electron Multiplier is read by a Large Area Avalanche Photodiode. EL yield, charge gain and energy resolution in He, CF4 and iso-butane mixtures are measured with low energy X-rays. The inclusion of iso-butane, with its high H content, will allow to reduce the observable WIMP mass threshold.

TIPP2020 abstract resubmission? No, this is an entirely new submission.
Funding information "INITIUM" , ERC Consolidator Grant Proposal n. 818744

Primary authors

Dr Fernando Amaro (LIBPhys - Coimbra University) Cygno Collaboration

Presentation materials