Study of the loss of xenon scintillation in xenon-trimethylamine mixtures

A. M.F. Trindade, J. Escada, A. F.V. Cortez, F. I.G.M. Borges, F. P. Santos, C. Adams, V. Álvarez, L. Arazi, C. D.R. Azevedo, F. Ballester, J. M. Benlloch-Rodríguez, A. Botas, S. Cárcel, J. V. Carríon, 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, J. J. Gómez-Cadenas, D. González-Díaz, R. Guenette, R. M. Gutiérrez, K. Hafidi, J. Hauptman, C. A.O. Henriques, A. I. Hernandez, J. A.Hernando Morata, V. Herrero, S. Johnston, B. J.P. Jones, L. Labarga, A. Laing, P. Lebrun, I. Liubarsky, N. López-March, M. Losada, J. Martín-Albo, G. Martínez-Lema, A. Martínez, A. D. McDonald, F. Monrabal, C. M.B. Monteiro, F. J. Mora, L. M. Moutinho, J. Muñoz Vidal, M. Musti, M. Nebot-Guinot, P. Novella, D. R. Nygren, B. Palmeiro, A. Para, J. Pérez, M. Querol, J. Renner, J. Repond, S. Riordan, L. Ripoll, J. Rodríguez, L. Rogers, J. M.F. dos Santos, 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


This work investigates the capability of TMA ((CH3)3N) molecules to shift the wavelength of Xe VUV emission (160–188 nm) to a longer, more manageable, wavelength (260–350 nm). Light emitted from a Xe lamp was passed through a gas chamber filled with Xe-TMA mixtures at 800 Torr and detected with a photomultiplier tube. Using bandpass filters in the proper transmission ranges, no reemitted light was observed experimentally. Considering the detection limit of the experimental system, if reemission by TMA molecules occurs, it is below 0.3% of the scintillation absorbed in the 160–188 nm range. An absorption coefficient value for xenon VUV light by TMA of 0.43 ± 0.03 cm−1 Torr−1 was also obtained. These results can be especially important for experiments considering TMA as a molecular additive to Xe in large volume optical time projection chambers.

Original languageEnglish (US)
Pages (from-to)22-28
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
StatePublished - Oct 11 2018


  • Gaseous radiation detectors
  • Molecular additives
  • Noble gas mixtures
  • VUV absorption

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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