PT Journal
AU Oliveira, CAB
   Sorel, M
   Martin-Albo, J
   Gomez-Cadenas, JJ
   Ferreira, AL
   Veloso, JFCA
TI Energy resolution studies for NEXT
SO Journal of Instrumentation
JI J. Instrum.
PY 2011
BP P05007 - 13pp
VL 6
DI 10.1088/1748-0221/6/05/P05007
LA English
DE Scintillators; scintillation and light emission processes (solid; gas and liquid scintillators); Detector modelling and simulations II (electric fields; charge transport; multiplication and induction; pulse formation; electron emission etc); Large detector systems for particle and astroparticle physics; Time projection chambers
AB This work aims to present the current state of simulations of electroluminescence (EL) produced in gas-based detectors with special interest for NEXT – Neutrino Experiment with a Xenon TPC. NEXT is a neutrinoless double beta decay experiment, thus needs outstanding energy resolution which can be achieved by using electroluminescence. The process of light production is reviewed and properties such as EL yield and associated fluctuations, excitation and electroluminescence efficiencies, and energy resolution, are calculated. An EL production region with a 5 mm width gap between two infinite parallel planes is considered, where a uniform electric field is produced. The pressure and temperature considered are 10 bar and 293 K, respectively. The results show that, even for low values of VUV photon detection efficiency, good energy resolution can be achieved: below 0.4% (FWHM) at Q(beta beta) = 2.458 MeV.
ER