@Article{Alvarez_etal2019,
author="Alvarez, V.
and Herrero-Bosch, V.
and Esteve, R.
and Laing, A.
and Rodriguez, J.
and Querol, M.
and Monrabal, F.
and Toledo, J. F.
and Gomez-Cadenas, J. J.",
title="The electronics of the energy plane of the NEXT-White detector",
journal="Nuclear Instruments {\&} Methods in Physics Research A",
year="2019",
publisher="Elsevier Science Bv",
volume="917",
pages="68--76",
optkeywords="Calorimetry; Front-end electronics; Digital baseline restoration",
abstract="This paper describes the electronics of NEXT-White (NEW) detector PMT plane, a high pressure xenon TPC with electroluminescent amplification (HPXe-EL) currently operating at the Laboratorio Subterraneo de Canfranc (LSC) in Huesca, Spain. In NEXT-White the energy of the event is measured by a plane of photomultipliers (PMTs) located behind a transparent cathode. The PMTs are Hamamatsu R11410-10 chosen due to their low radioactivity. The electronics have been designed and implemented to fulfill strict requirements: an overall energy resolution below 1{\%} and a radiopurity budget of 20 mBq unit(-1) in the chain of Bi-214. All the components and materials have been carefully screened to assure a low radioactivity level and at the same time meet the required front-end electronics specifications. In order to reduce low frequency noise effects and enhance detector safety a grounded cathode connection has been used for the PMTs. This implies an AC-coupled readout and baseline variations in the PMT signals. A detailed description of the electronics and a novel approach based on a digital baseline restoration to obtain a linear response and handle AC coupling effects is presented. The final PMT channel design has been characterized with linearity better than 0.4{\%} and noise below 0.4 mV.",
optnote="WOS:000455016500010",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3868), last updated on Thu, 17 Jan 2019 19:21:22 +0000",
issn="0168-9002",
doi="10.1016/j.nima.2018.11.126",
opturl="http://arxiv.org/abs/1805.08636",
opturl="https://doi.org/10.1016/j.nima.2018.11.126",
archivePrefix="arXiv",
eprint="1805.08636",
language="English"
}