Ítem
|
Álvarez Puerta, Vicente
Borges, Filipa I.G.M Cárcel García, Sara Cebrián, Susana Cervera Villanueva, Anselmo Conde, Carlos A.N Dafni, Theopisti Díaz Medina, José Egorov, M. Esteve, Raúl Evtoukhovitch, P. Fernandes, L.M.P. Ferrario, Paola Ferreira, Antonio Luis Freitas, Elisabete D.C. Gehman, Victor M. Gil Ortiz, Alejandro Goldschmidt, Azriel Gómez, H. Gómez Cadenas, Juan José González-Díaz, Diego Gutiérrez, Rafael María Hauptman, John M. Hernando Morata, J.A. Herrera, D.C. Irastorza, Igor Garcia Jinete, M.A. Labarga, Luis A. Laing, Andrew Liubarsky, Igor Lopes, J.A.M. Lorca Galindo, David Losada, Marta Luzón, Gloria Marí, A. Martín-Albo Simón, Justo Miller, Tom P. Moiseenko, A. 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 Vázquez, D. Veloso, João F.C.A. Webb, R.C. White, James T. Yahlali Haddou, Nadia |
|
| 15 febrer 2020 | |
|
High-pressure xenon gas is an attractive detection medium for a variety of applications in fundamental and applied physics. In this paper we study the ionization and scintillation detection properties of xenon gas at 10 bar pressure. For this purpose, we use a source of alpha particles in the NEXT-DEMO time projection chamber, the large scale prototype of the NEXT-100 neutrinoless double beta decay experiment, in three different drift electric field configurations. We measure the ionization electron drift velocity and longitudinal diffusion, and compare our results to expectations based on available electron scattering cross sections on pure xenon. In addition, two types of measurements addressing the connection between the ionization and scintillation yields are performed. On the one hand we observe, for the first time in xenon gas, large event-by-event correlated fluctuations between the ionization and scintillation signals, similar to that already observed in liquid xenon. On the other hand, we study the field dependence of the average scintillation and ionization yields. Both types of measurements may shed light on the mechanism of electron-ion recombination in xenon gas for highly-ionizing particles. Finally, by comparing the response of alpha particles and electrons in NEXT-DEMO, we find no evidence for quenching of the primary scintillation light produced by alpha particles in the xenon gas This work was supported by the following agencies and institutions: the Spanish Ministerio de Economía y Competitividad under grants CONSOLIDER-Ingenio 2010 CSD2008-0037 (CUP) and FPA2009-13697-C04-04; the Portuguese FCT and FEDER through the program COMPETE, projects PTDC/FIS/103860/2008 and PTDC/FIS/112272/2009; and the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02- 05CH11231. J. Renner (LBNL) acknowledges the support of a US DOE NNSA Stewardship Science Graduate Fellowship under contract no. DE-FC52-08NA28752 |
|
| http://hdl.handle.net/2072/372229 | |
| eng | |
| Institute of Physics (IOP) | |
| Tots els drets reservats | |
|
Ionització
Ionization Comptadors de centelleig Scintillation (physics) Excitació nuclear Nuclear excitation Detectors de radiació Nuclear counters |
|
| Ionization and scintillation response of high-pressure xenon gas to alpha particles | |
| info:eu-repo/semantics/article | |
| Recercat |
