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Description and commissioning of NEXT-MM prototype: first results from operation in a Xenon-Trimethylamine gas mixture

A technical description of NEXT-MM and its commissioning and first performance is reported. Having an active volume of ~ 35 cm drift × 28 cm diameter, it constitutes the largest Micromegas-read TPC operated in Xenon ever constructed, made by a sectorial arrangement of the 4 largest single wafers manufactured with the Microbulk technique to date. It is equipped with a suitably pixelized readout and with a sufficiently large sensitive volume ( ~ 23 l) so as to contain long ( ~ 20 cm) electron tracks. First results obtained at 1 bar for Xenon and Trymethylamine (Xe-(2%)TMA) mixture are presented. The TPC can accurately reconstruct extended background tracks. An encouraging full-width half-maximum of 11.6 % was obtained for ~ 29 keV gammas without resorting to any data post-processing

The NEXT Collaboration acknowledges funding support from the following agencies and institutions: the Spanish Ministerio de Economía y Competitividad under grants CONSOLIDERIngenio 2010 CSD2008-0037 (CUP), Consolider-Ingenio 2010 CSD2007- 00042 (CPAN), and under contracts ref. FPA2008-03456, FPA2009-13697-C04-04; FCT(Lisbon) and FEDER under grant PTDC/FIS/103860/2008; the European Commission under the European Research Council T-REX Starting Grant ref. ERC-2009-StG-240054 of the IDEAS program of the 7th EU Framework Program; Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under contract no. DE-AC02-05CH11231. Part of these grants are funded by the European Regional Development Fund (ERDF/FEDER). J. Renner (LBNL) acknowledges the support of a US DOE NNSA Stewardship Science Graduate Fellowship under contract no. DE-FC52-08NA28752

Institute of Physics (IOP)

Author: Álvarez Puerta, Vicente
Aznar, F.
Borges, Filipa I.G.M.
Calvet, D.
Cárcel García, Sara
Castel, J.
Cebrián, Susana
Cervera Villanueva, Anselmo
Conde, Carlos A.N
Dafni, Theopisti
Dias, T.H.V.T
Díaz Medina, José
Druillole, F.
Egorov, M.
Freitas, Elisabete D.C.
Gehman, Victor M.
Gil Ortiz, Alejandro
Giomataris, I.
Goldschmidt, Azriel
Gómez, H.
Gómez Cadenas, Juan
González-Díaz, Diego
Gutiérrez, Rafael María
Hauptman, John M.
Hernando Morata, J.A.
Herrera, D.C.
Iguaz, F.J.
Irastorza, Igor Garcia
Jinete, M.A.
Labarga, Luis A.
Laing, Andrew
Le Coguie, A.
Liubarsky, Igor
Lopes, J.A.M.
Lorca Galindo, David
Losada, Marta
Luzón, Gloria
Marí, A.
Martín-Albo Simón, Justo
Martínez Pérez, Alberto
Martínez Lema, Gonzalo
Miller, Tom P.
Moiseenko, A.
Mols, J.P.
Monrabal Capilla, Francesc
Monteiro, Cristina M.B.
Mora, Francisco José
Moutinho, L.M.
Muñoz Vidal, J.
Natal da Luz, H.
Navarro, G.
Nebot Guinot, Miquel
Nygren, David R.
Oliveira, Carlos A.B.
Palma, R.
Pérez, Javier Martin
Pérez Aparicio, J.L.
Renner, Joshua
Ripoll Masferrer, Lluís
Rodríguez, Ángel Y.
Rodríguez Samaniego, Javier
Santos, Filomena P.
dos Santos, Joaquim M.F.
Seguí, Laura
Serra Díaz-Cano, Luis
Shuman, Derek B.
Simón Estévez, Ander
Sofka, C.
Sorel, Michel
Toledo, J.F.
Tomás, A.
Torrent Collell, Jordi
Tsamalaidze, Zviadi
Veloso, João F.C.A.
Villar, José Ángel
Webb, R.C.
White, James T.
Yahlali Haddou, Nadia
Date: 2020 February 15
Abstract: A technical description of NEXT-MM and its commissioning and first performance is reported. Having an active volume of ~ 35 cm drift × 28 cm diameter, it constitutes the largest Micromegas-read TPC operated in Xenon ever constructed, made by a sectorial arrangement of the 4 largest single wafers manufactured with the Microbulk technique to date. It is equipped with a suitably pixelized readout and with a sufficiently large sensitive volume ( ~ 23 l) so as to contain long ( ~ 20 cm) electron tracks. First results obtained at 1 bar for Xenon and Trymethylamine (Xe-(2%)TMA) mixture are presented. The TPC can accurately reconstruct extended background tracks. An encouraging full-width half-maximum of 11.6 % was obtained for ~ 29 keV gammas without resorting to any data post-processing
The NEXT Collaboration acknowledges funding support from the following agencies and institutions: the Spanish Ministerio de Economía y Competitividad under grants CONSOLIDERIngenio 2010 CSD2008-0037 (CUP), Consolider-Ingenio 2010 CSD2007- 00042 (CPAN), and under contracts ref. FPA2008-03456, FPA2009-13697-C04-04; FCT(Lisbon) and FEDER under grant PTDC/FIS/103860/2008; the European Commission under the European Research Council T-REX Starting Grant ref. ERC-2009-StG-240054 of the IDEAS program of the 7th EU Framework Program; Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under contract no. DE-AC02-05CH11231. Part of these grants are funded by the European Regional Development Fund (ERDF/FEDER). J. Renner (LBNL) acknowledges the support of a US DOE NNSA Stewardship Science Graduate Fellowship under contract no. DE-FC52-08NA28752
Document access: http://hdl.handle.net/2072/372196
Language: eng
Publisher: Institute of Physics (IOP)
Rights: Tots els drets reservats
Subject: Enginyeria -- Instruments
Engineering instruments
Detectors de radiació
Nuclear counters
Title: Description and commissioning of NEXT-MM prototype: first results from operation in a Xenon-Trimethylamine gas mixture
Type: info:eu-repo/semantics/article
Repository: Recercat

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