148815 20250722154010.0 sideral 92279 ART-2015-92279 eng González-Díaz, D. Universidad de Zaragoza Accurate gamma and MeV-electron track reconstruction with an ultra-low diffusion Xenon/TMA TPC at 10 atm 2015 Access copy available to the general public Unrestricted We report the performance of a 10 atm Xenon/trimethylamine time projection chamber (TPC) for the detection of X-rays (30 keV) and ¿-rays (0.511-1.275 MeV) in conjunction with the accurate tracking of the associated electrons. When operated at such a high pressure and in ~1%-admixtures, trimethylamine (TMA) endows Xenon with an extremely low electron diffusion (1.3±0.13mm-s (longitudinal), 0.95±0.20mm-s (transverse) along 1 m drift) besides forming a convenient ''Penning-Fluorescent'' mixture. The TPC, that houses 1.1 kg of gas in its fiducial volume, operated continuously for 100 live-days in charge amplification mode. The readout was performed through the recently introduced microbulk Micromegas technology and the AFTER chip, providing a 3D voxelization of 8mm×8mm×1.2mm for approximately 10 cm/MeV-long electron tracks. Resolution in energy (e) at full width half maximum (R) inside the fiducial volume ranged from R=14.6% (30 keV) to R=4.6%(1.275MeV). This work was developed as part of the R&D program of the NEXT collaboration for future detector upgrades in the search of the neutrino-less double beta decay (ßß0¿) in 136Xe, specifically those based on novel gas mixtures. Therefore we ultimately focus on the calorimetric and topological properties of the reconstructed MeV-electron tracks. In particular, the obtained energy resolution has been decomposed in its various contributions and improvements towards achieving the R=1.4%v1MeV/e levels obtained in small sensors are discussed. info:eu-repo/grantAgreement/EC/FP7/240054/EU/Novel Developments in Time Projection Chambers (TPCs) for Rare Event Searches in Underground Astroparticle EXperiments/TREX info:eu-repo/grantAgreement/EC/FP7/339787/EU/Towards the NEXT generation of bb0nu experimets/NEXT info:eu-repo/grantAgreement/ES/MICINN/CPAN-CSD2007-00042 info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenio-2010/CSD2008-00037 info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2008-03456 info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2009-13697 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 1.2 2015 NUCLEAR SCIENCE & TECHNOLOGY 9 / 32 = 0.281 2015 Q2 T1 SPECTROSCOPY 28 / 43 = 0.651 2015 Q3 T2 INSTRUMENTS & INSTRUMENTATION 31 / 56 = 0.554 2015 Q3 T2 PHYSICS, PARTICLES & FIELDS 24 / 28 = 0.857 2015 Q4 T3 0.965 2015 Instrumentation 2015 Q1 Nuclear and High Energy Physics 2015 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Álvarez, V. Borges, F.I.G. Camargo, M. Cárcel, S. Cebrián, S. Universidad de Zaragoza (orcid)0000-0002-6948-5101 Cervera, A. Conde, C.A.N. Dafni, T. Universidad de Zaragoza (orcid)0000-0002-8921-910X Díaz, J. Esteve, R. Fernandes, L.M.P. Ferrario, P. Ferreira, A.L. Freitas, E.D.C. Gehman, V.M. Goldschmidt, A. Gómez-Cadenas, J.J. Gutiérrez, R.M. Hauptman, J. Hernando Morata, J.A. Herrera, D.C. (orcid)0000-0002-2908-4442 García-Irastorza, I. Universidad de Zaragoza (orcid)0000-0003-1163-1687 Labarga, L. Laing, A. Liubarsky, I. Lopez-March, N. Lorca, D. Losada, M. Luzón, G. Universidad de Zaragoza (orcid)0000-0002-5352-1884 Marí, A. Martín-Albo, J. Martínez-Lema, G. Martínez, A. Miller, T. Monrabal, F. Monserrate, M. Monteiro, C.M.B. Mora, F.J. Moutinho, L.M. Muñoz Vidal, J. Nebot-Guinot, M. Nygren, D. Oliveira, C.A.B. Pérez, J. Pérez Aparicio, J.L. Querol, M. Renner, J. Ripoll, L. Rodríguez, J. Santos, F.P. Dos Santos, J.M.F. Serra, L. Shuman, D. Simón, A. Sofka, C. Sorel, M. Toledo, J.F. Torrent, J. Tsamalaidze, Z. Veloso, J.F.C.A. Villar, J.A. Universidad de Zaragoza (orcid)0000-0003-0228-7589 Webb, R. White, J.T. Yahlali, N. Azevedo, C. Aznar, F. (orcid)0000-0003-3629-0540 Calvet, D. Castel, J. Universidad de Zaragoza (orcid)0000-0003-3532-7540 Ferrer-Ribas, E. García, J.A. Universidad de Zaragoza (orcid)0000-0002-7399-7353 Giomataris, I. Gómez, H. (orcid)0000-0002-1770-8940 Iguaz, F.J. Universidad de Zaragoza (orcid)0000-0001-6327-9369 Lagraba, A. Universidad de Zaragoza Le Coguie, A. Mols, J.P. Sahin, Ö. Rodríguez, A. Ruiz-Choliz, E. Universidad de Zaragoza (orcid)0000-0002-2417-7121 Segui, L. (orcid)0000-0002-6422-7904 Tomás, A. (orcid)0000-0002-5225-3953 Veenhof, R. 2004 X Universidad de Zaragoza Dpto. Física Teórica Proy. investigación HCA 2004 390 Universidad de Zaragoza Dpto. Física Teórica Área Física Atóm.Molec.y Nucl. 804 (2015), 8-24 Nucl. instrum. methods phys. res., Sect. A Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 0168-9002 3150359 http://zaguan.unizar.es/record/148815/files/texto_completo.pdf Versión publicada 2140473 http://zaguan.unizar.es/record/148815/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:148815 articulos driver 2025-07-22-15:35:39 ARTICLE