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Electron drift properties in high pressure gaseous xenon
Journal article   Peer reviewed

Electron drift properties in high pressure gaseous xenon

A. Simon, R. Felkai, G. Martinez-Lema, F. Monrabal, D. Gonzalez-Diaz, M. Sorel, J. A. Hernando Morata, J. J. Gomez-Cadenas, C. Adams, V. Alvarez, …
Journal of instrumentation, Vol.13(7), pp.P07013-P07013
07/18/2018
DOI: 10.1088/1748-0221/13/07/P07013

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Abstract

Gaseous time projection chambers (TPC) are a very attractive detector technology for particle tracking. Characterization of both drift velocity and diffusion is of great importance to correctly assess their tracking capabilities. NEXT-White is a High Pressure Xenon gas TPC with electroluminescent amplification, a 1:2 scale model of the future NEXT-100 detector, which will be dedicated to neutrinoless double beta decay searches. NEXT-White has been operating at Canfranc Underground Laboratory (LSC) since December 2016. The drift parameters have been measured using Kr-83(m) for a range of reduced drift fields at two different pressure regimes, namely 7.2 bar and 9.1 bar. The results have been compared with Magboltz simulations. Agreement at the 5% level or better has been found for drift velocity, longitudinal diffusion and transverse diffusion.
Technology Instruments & Instrumentation Science & Technology

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