TY  - JOUR
AU  - NEXT Collaboration (Alvarez, V. et al
AU  - Carcel, S.
AU  - Cervera-Villanueva, A.
AU  - Diaz, J.
AU  - Ferrario, P.
AU  - Gil, A.
AU  - Gomez-Cadenas, J. J.
AU  - Laing, A.
AU  - Liubarsky, I.
AU  - Lorca, D.
AU  - Martin-Albo, J.
AU  - Martinez, A.
AU  - Monrabal, F.
AU  - Muñoz Vidal, J.
AU  - Nebot-Guinot, M.
AU  - Rodriguez, J.
AU  - Serra, L.
AU  - Simon, A.
AU  - Sorel, M.
AU  - Yahlali, N.
PY  - 2013
DA  - 2013//
TI  - Initial results of NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment
T2  - J. Instrum.
JO  - Journal of Instrumentation
SP  - P04002 - 25pp
VL  - 8
PB  - Iop Publishing Ltd
KW  - Double-beta decay detectors
KW  - Time projection chambers
KW  - Pattern recognition
KW  - cluster finding
KW  - calibration and fitting methods
AB  - NEXT-DEMO is a large-scale prototype of the NEXT-100 detector, an electroluminescent time projection chamber that will search for the neutrinoless double beta decay of Xe-136 using 100-150 kg of enriched xenon gas. NEXT-DEMO was built to prove the expected performance of NEXT-100, namely, energy resolution better than 1% FWHM at 2.5MeV and event topological reconstruction. In this paper we describe the prototype and its initial results. A resolution of 1.75% FWHM at 511 keV (which extrapolates to 0.8% FWHM at 2.5 MeV) was obtained at 10 bar pressure using a gamma-ray calibration source. Also, a basic study of the event topology along the longitudinal coordinate is presented, proving that it is possible to identify the distinct dE/dx of electron tracks in high-pressure xenon using an electroluminescence TPC.
SN  - 1748-0221
UR  - http://arxiv.org/abs/1211.4838
UR  - https://doi.org/10.1088/1748-0221/8/04/P04002
DO  - 10.1088/1748-0221/8/04/P04002
LA  - English
N1  - WOS:000317462400009
ID  - NEXTCollaborationAlvarez_etal2013
ER  -