PT Journal
AU NEXT Collaboration (Monrabal, Fea
   Laing, A
   Alvarez, V
   Benlloch-Rodriguez, JM
   Carcel, S
   Carrion, JV
   Felkai, R
   Martinez, A
   Musti, M
   Querol, M
   Rodriguez, J
   Simon, A
   Torrent, J
   Botas, A
   Diaz, J
   Kekic, M
   Lopez-March, N
   Martinez-Lema, G
   Muñoz Vidal, J
   Nebot-Guinot, M
   Novella, P
   Palmeiro, B
   Perez, J
   Renner, J
   Romo-Luque, C
   Sorel, M
   Yahlali, N
TI The NEXT White (NEW) detector
SO Journal of Instrumentation
JI J. Instrum.
PY 2018
BP P12010 - 38pp
VL 13
DI 10.1088/1748-0221/13/12/P12010
LA English
DE Double-beta decay detectors; Particle tracking detectors; Scintillators; scintillation and light emission processes (solid gas and liquid scintillators); Time projection chambers
AB Conceived to host 5 kg of xenon at a pressure of 15 bar in the fiducial volume, the NEXT-White apparatus is currently the largest high pressure xenon gas TPC using electroluminescent amplification in the world. It is also a 1:2 scale model of the NEXT-100 detector for Xe-136 beta beta 0 nu decay searches, scheduled to start operations in 2019. Both detectors measure the energy of the event using a plane of photomultipliers located behind a transparent cathode. They can also reconstruct the trajectories of charged tracks in the dense gas of the TPC with the help of a plane of silicon photomultipliers located behind the anode. A sophisticated gas system, common to both detectors, allows the high gas purity needed to guarantee a long electron lifetime. NEXT-White has been operating since October 2016 at the Laboratorio Subterraneo de Canfranc (LSC), in Spain. This paper describes the detector and associated infrastructures, as well as the main aspects of its initial operation.
ER