Microscopic simulation of xenon-based optical TPCs in the presence of molecular additives

Abstract

We introduce a simulation framework for the transport of high and low energy electrons in xenon-based gaseous optical time projection chambers (OTPCs). The simulation relies on elementary cross sections (electron-atom and electron-molecule) and incorporates, in order to compute the gas scintillation, the reaction/quenching rates (atom-atom and atom-molecule) of the first 41 excited states of xenon and the relevant associated excimers, together with their radiative cascade. The results compare positively with observations made in pure xenon and its mixtures with CO${}_2$ and CF${}_4$ in a range of pressures from 0.1 to 10~bar. This work sheds some light on the elementary processes responsible for the primary and secondary xenon-scintillation mechanisms in the presence of additives, that are of interest to the OTPC technology.

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Cited by in corpus (16)

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• Interfacing Geant4, Garfield++ and Degrad for the Simulation of Gaseous Detectors
• Helium-Xenon mixtures to improve topological signature in high pressure gas Xenon TPCs
• Neutral Bremsstrahlung emission in xenon unveiled
• Neutrino-hydrogen interactions with a high-pressure time projection chamber
• Electroluminescence TPCs at the thermal diffusion limit
• Spectroscopic analysis of the argon scintillation with a wavelength sensitive particle detector
• Observation of low-lying isomeric states in ${}^{136}$Cs: a new avenue for dark matter and solar neutrino detection in xenon detectors
• Time and band-resolved scintillation in time projection chambers based on gaseous xenon
• Study of the loss of Xenon Scintillation in Xenon-Trimethylamine Mixtures
• A new amplification structure for time projection chambers based on electroluminescence
• Observation of strong wavelength-shifting in the argon-tetrafluoromethane system
• First time-resolved measurement of infrared scintillation light in gaseous xenon
• FAT-GEMs: (Field Assisted) Transparent Gaseous-Electroluminescence Multipliers
• Double Beta Decay Experiments at Canfranc Underground Laboratory
• A new imaging technology based on Compton X-ray scattering