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

C. D.R. Azevedo, D. González-Díaz, S. F. Biagi, C. A.B. Oliveira, C. A.O. Henriques, J. Escada, F. Monrabal, J. J. Gómez-Cadenas, V. Álvarez, J. M. Benlloch-Rodríguez, F. I.G.M. Borges, A. Botas, S. Cárcel, J. V. Carrión, S. Cebrián, C. A.N. Conde, J. Díaz, M. Diesburg, R. Esteve, R. FelkaiL. M.P. Fernandes, P. Ferrario, A. L. Ferreira, E. D.C. Freitas, A. Goldschmidt, R. M. Gutiérrez, J. Hauptman, A. I. Hernandez, J. A.Hernando Morata, V. Herrero, B. J.P. Jones, L. Labarga, A. Laing, P. Lebrun, I. Liubarsky, N. Lopez-March, M. Losada, J. Martín-Albo, G. Martínez-Lema, A. Martínez, A. D. McDonald, C. M.B. Monteiro, F. J. Mora, L. M. Moutinho, J. Muñoz Vidal, M. Musti, M. Nebot-Guinot, P. Novella, D. Nygren, B. Palmeiro, A. Para, J. Pérez, M. Querol, J. Renner, L. Ripoll, J. Rodríguez, L. Rogers, F. P. Santos, J. M.F. dos Santos, L. Serra, D. Shuman, A. Simón, C. Sofka, M. Sorel, T. Stiegler, J. F. Toledo, J. Torrent, Z. Tsamalaidze, J. F.C.A. Veloso, R. Webb, J. T. White, N. Yahlali

Research output: Contribution to journalArticlepeer-review


We introduce a simulation framework for the transport of high and low energy electrons in xenon-based 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 CO2 and CF4 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.

Original languageEnglish (US)
Pages (from-to)157-172
Number of pages16
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
StatePublished - Jan 1 2018


  • Electron cooling
  • Gaseous electronics
  • High pressure
  • Microscopic simulation
  • Molecular additives
  • Molecular quenchers
  • Optical TPCs
  • Xenon scintillation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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