@Article{NEXTCollaborationMartinez-Lema_etal2018, author="NEXT Collaboration (Martinez-Lema, G. et al and Palmeiro, B. and Botas, A. and Laing, A. and Renner, J. and Simon, A. and Alvarez, V. and Benlloch-Rodriguez, J. M. and Carcel, S. and Carrion, J. V. and Diaz, J. and Felkai, R. and Kekic, M. and Lopez-March, N. and Martinez, A. and Mu{\~{n}}oz Vidal, J. and Musti, M. and Nebot-Guinot, M. and Novella, P. and Perez, J. and Querol, M. and Rodriguez, J. and Romo-Lugue, C. and Sorel, M. and Torrent, J. and Yahlali, N.", title="Calibration of the NEXT-White detector using Kr-83m decays", journal="Journal of Instrumentation", year="2018", publisher="Iop Publishing Ltd", volume="13", pages="P10014 - 21pp", optkeywords="Charge transport; multiplication and electroluminescence in rare gases and liquids; Gaseous imaging and tracking detectors; Time projection Chambers (TPC); Double-beta decay detectors", abstract="The NEXT-White (NEW) detector is currently the largest radio-pure high-pressure xenon gas time projection chamber with electroluminescent readout in the world. It has been operating at Laboratorio Subterraneo de Canfranc (LSC) since October 2016. This paper describes the calibrations performed using Kr-83m decays during a long run taken from March to November 2017 (Run II). Krypton calibrations are used to correct for the finite drift-electron lifetime as well as for the dependence of the measured energy on the event transverse position which is caused by variations in solid angle coverage both for direct and reflected light and edge effects. After producing calibration maps to correct for both effects we measure an excellent energy resolution for 41.5 keV point-like deposits of (4.553 +/- 0.010 (stat.) +/- 0.324 (sys.)) {\%} FWHM in the full chamber and (3.804 +/- 0.013 (stat.) +/- 0.112 (sys.)) {\%} FWHM in a restricted fiducial volume. Using naive 1/root E scaling, these values translate into resolutions of (0.5916 +/- 0.0014 (stat.) +/- 0.0421 (sys.)) {\%} FWHM and (0.4943 +/- 0.0017 (stat.) +/- 0.0146 (sys.)) {\%} FWHM at the Q(beta beta) energy of xenon double beta decay (2458 keV), well within range of our target value of 1{\%}.", optnote="WOS:000447061800001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3754), last updated on Mon, 15 Jun 2020 09:35:35 +0000", issn="1748-0221", doi="10.1088/1748-0221/13/10/P10014", opturl="http://arxiv.org/abs/1804.01780", opturl="https://doi.org/10.1088/1748-0221/13/10/P10014", archivePrefix="arXiv", eprint="1804.01780", language="English" }