@Article{NEXTCollaborationLorca_etal2014,
author="NEXT Collaboration (Lorca, D. et al
and Martin-Albo, J.
and Laing, A.
and Ferrario, P.
and Gomez-Cadenas, J. J.
and Alvarez, V.
and Carcel, S.
and Cervera-Villanueva, A.
and Diaz, J.
and Liubarsky, I.
and Martinez, A.
and Monrabal, F.
and Monserrate, M.
and Mu{\~{n}}oz Vidal, J.
and Nebot-Guinot, M.
and Rodriguez, J.
and Serra, L.
and Simon, A.
and Sorel, M.
and Yahlali, N.",
title="Characterisation of NEXT-DEMO using xenon K-alpha X-rays",
journal="Journal of Instrumentation",
year="2014",
publisher="Iop Publishing Ltd",
volume="9",
pages="P10007 - 20pp",
optkeywords="Charge transport; multiplication and electroluminescence in rare gases and liquids; Double-beta decay detectors; Time projection chambers",
abstract="The NEXT experiment aims to observe the neutrinoless double beta decay of Xe-136 in a high-pressure xenon gas TPC using electroluminescence (EL) to amplify the signal from ionization. Understanding the response of the detector is imperative in achieving a consistent and well understood energy measurement. The abundance of xenon K-shell X-ray emission during data taking has been identified as a multitool for the characterisation of the fundamental parameters of the gas as well as the equalisation of the response of the detector. The NEXT-DEMO prototype is a similar to 1.5 kg volume TPC filled with natural xenon. It employs an array of 19 PMTs as an energy plane and of 256 SiPMs as a tracking plane with the TPC light tube and SiPM surfaces being coated with tetraphenyl butadiene (TPB) which acts as a wavelength shifter for the VUV scintillation light produced by xenon. This paper presents the measurement of the properties of the drift of electrons in the TPC, the effects of the EL production region, and the extraction of position dependent correction constants using K-alpha X-ray deposits. These constants were used to equalise the response of the detector to deposits left by gammas from Na-22.",
optnote="WOS:000345858500050",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2055), last updated on Mon, 15 Jun 2020 09:35:16 +0000",
issn="1748-0221",
doi="10.1088/1748-0221/9/10/P10007",
opturl="http://arxiv.org/abs/1407.3966",
opturl="https://doi.org/10.1088/1748-0221/9/10/P10007",
archivePrefix="arXiv",
eprint="1407.3966",
language="English"
}