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

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Abstract

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.

Lingua originaleInglese
pagine (da-a)22-28
Numero di pagine7
RivistaNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume905
DOI
Stato di pubblicazionePubblicato - 11 ott 2018
Pubblicato esternamente

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