Helium–Xenon mixtures to improve the topological signature in high pressure gas xenon TPCs

Within the framework of xenon-based double beta decay experiments, we propose the possibility to improve the background rejection of an electroluminescent Time Projection Chamber (EL TPC) by reducing the diffusion of the drifting electrons while keeping nearly intact the energy resolution of a pure...

Descripción completa

Detalles Bibliográficos
Autores: Felkai, R., Monrabal Capilla, Francesc, González-Díaz, Diego, Sorel, Michel, López-March, N., Gómez Cadenas, Juan José, Adams, C., Álvarez Puerta, Vicente, Arazi, L., Azevedo, C.D.R., Benlloch Rodríguez, J.M., Borges, Filipa I.G.M., Botas, A., Cárcel García, Sara, Carrión, J.V., Cebrián, Susana, Conde, Carlos A.N., Díaz Medina, José, Diesburg, M., Escada, J., Esteve, Raúl, Fernandes, L.M.P., Ferrario, Paola, Ferreira, Antonio Luis, Freitas, Elisabete D.C., Goldschmidt, Azriel, Guenette, R., Gutiérrez, Rafael María, Hafidi, K., Hauptman, John M., Henriques, C.A.O., Hernández, Andrés I., Hernando Morata, J.A., Herrero, Vicente, Johnston, S., Jones, Benjamin J.P., Labarga, Luis A., Laing, Andrew, Lebrun, P., Losada, Marta, Martín-Albo Simón, Justo, Martínez Lema, Gonzalo, Martínez Pérez, Alberto, McDonald, Alison D., Monteiro, Cristina M.B., Mora, Francisco José, Moutinho, L.M., Muñoz Vidal, J., Musti, M., Nebot Guinot, Miquel, Novella, P., Nygren, David R., Palmeiro, B., Para, A., Pérez, Javier Martin, Querol, M., Renner, Joshua, Repond, J., Riordan, S., Ripoll Masferrer, Lluís, Romo-Luque, C., Rodríguez Samaniego, Javier, Rogers, L., Santos, Filomena P., dos Santos, Joaquim M.F., Simón Estévez, Ander, Sofka, C., Stiegler, T., Toledo, J.F., Torrent Collell, Jordi, Tsamalaidze, Zviadi, Veloso, João F.C.A., Webb, R.C., White, James T., Yahlali Haddou, Nadia
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2018
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/17003
Acceso en línea:http://hdl.handle.net/10256/17003
Access Level:acceso abierto
Palabra clave:Electroluminescència
Electroluminescence
Enginyeria -- Instruments
Engineering instruments
Detectors de radiació
Nuclear counters
Descripción
Sumario:Within the framework of xenon-based double beta decay experiments, we propose the possibility to improve the background rejection of an electroluminescent Time Projection Chamber (EL TPC) by reducing the diffusion of the drifting electrons while keeping nearly intact the energy resolution of a pure xenon EL TPC. Based on state-of-the-art microscopic simulations, a substantial addition of helium, around 10 or 15 %, may reduce drastically the transverse diffusion down to 2.5 mm/m from the 10.5 mm/m of pure xenon. The longitudinal diffusion remains around 4 mm/m. Light production studies have been performed as well. They show that the relative variation in energy resolution introduced by such a change does not exceed a few percent, which leaves the energy resolution practically unchanged. The technical caveats of using photomultipliers close to an helium atmosphere are also discussed in detail

Similares en LA Referencia