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Browsing by Author "Álvarez Puerta, Vicente"

Now showing items 1-20 of 23

A programmable, multichannel power supply for SiPMs with temperature compensation loop and Ethernet interface

Querol-Segura, Marc; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco; Esteve Bosch, Raul; Álvarez-Puerta, Vicente; Herrero Bosch, Vicente (IOP Publishing, 2016-12-15)

Among the different techniques available, the SiPM power supply described in this paper uses output voltage and sensor temperature feedback. A high-resolution ADC digitizes both the output voltage and an analog signal ...
Accurate gamma and MeV-electron track reconstruction with an ultra-low diffusion Xenon/TMA TPC at 10 atm

Gonzalez Diaz, Diego; Álvarez Puerta, Vicente; Borges, F. I. G.; Camargo, M.; Carcel, S.; Cebrian, S.; Cervera, A.; Conde, C. A. N.; Dafni, T.; Esteve Bosch, Raul; Fernandes, L. M. P.; Mora Mas, Francisco José; Pérez Aparicio, José Luis; Rodríguez Samaniego, Javier; Toledo Alarcón, José Francisco (Elsevier, 2015-12-21)

We report the performance of a 10 atm Xenon/trimethylamine time projection chamber (TPC) for the detection of X-rays (30 keV) and gamma-rays (0.511-1.275 MeV) in conjunction with the accurate tracking of the associated ...
Demonstration of background rejection using deep convolutional neural networks in the NEXT experiment

Kekic, M.; Adams, C.; Woodruff, K.; Renner, J.; Church, E.; Del Tutto, M.; Hernando Morata, J. A.; Gomez-Cadenas, J. J.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Azevedo, C. D. R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodriguez, J. M.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2021-01-28)

[EN] Convolutional neural networks (CNNs) are widely used state-of-the-art computer vision tools that are becoming increasingly popular in high-energy physics. In this paper, we attempt to understand the potential of CNNs ...
Demonstration of Single-Barium-Ion Sensitivity for Neutrinoless Double-Beta Decay Using Single-Molecule Fluorescence Imaging

McDonald, A.D.; Jones, B.J.P.; Nygren, D.R.; Adams, C.; Álvarez-Puerta, Vicente; Azevedo, C.D.R.; Benlloch-Rodríguez, J.M.; Borges, F.I.G.M.; Botas, A.; Cárcel García, Sara; Carrión Burguete, José Vicente; Cebrian, S.; Conde, C.A.N.; Diaz, J.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Toledo Alarcón, José Francisco (American Physical Society, 2018-03-26)

[EN] A new method to tag the barium daughter in the double-beta decay of Xe-136 is reported. Using the technique of single molecule fluorescent imaging (SMFI), individual barium dication (Ba++) resolution at a transparent ...
Demonstration of the event identification capabilities of the NEXT-White detector

Ferrario, Paola; Benlloch-Rodríguez, J.M.; Díaz López, G.; Hernando Morata, J.A.; Kekic, M.; Renner, J.; Usón, A.; Gómez-Cadenas, J.J.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Azevedo, C.D.R.; Bailey, K.; Ballester Merelo, Francisco José; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2019-10-04)

[EN] In experiments searching for neutrinoless double-beta decay, the possibility of identifying the two emitted electrons is a powerful tool in rejecting background events and therefore improving the overall sensitivity ...
Dependence of polytetrafluoroethylene reflectance on thickness at visible and ultraviolet wavelengths in air

Ghosh, S.; Haefner, J.; Martín-Albo, J.; Guenette, R.; Li, X.; Loya Villalpando, A.A.; Burch, C.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Azevedo, C.D.R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodríguez, J.M.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (IOP Publishing, 2020-11-23)

[EN] Polytetrafluoroethylene (PTFE) is an excellent diffuse reflector widely used in light collection systems for particle physics experiments. However, the reflectance of PTFE is a function of its thickness. In this work, ...
Electroluminescence TPCs at the thermal diffusion limit

Henriques, C. A. O.; Monteiro, C. M. B.; Gonzalez-Diaz, D.; Azevedo, C. D. R.; Freitas, E. D. C.; Mano, R. D. P.; Jorge, M. R.; Fernandes, A. F. M.; Gomez-Cadenas, J. J.; Fernandes, L. M. P.; Álvarez-Puerta, Vicente; Ballester Merelo, Francisco José; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2019-01-03)

[EN] The NEXT experiment aims at searching for the hypothetical neutrinoless double-beta decay from the 136Xe isotope using a high-purity xenon TPC. Efficient discrimination of the events through pattern recognition of the ...
Electron drift properties in high pressure gaseous xenon

Simon, A.; Felkai, R.; Martinez-Lema, G.; Monrabal, F.; Gonzalez-Diaz, D.; Sorel, M.; Hernando Morata, J. A.; Gomez-Cadenas, J. J.; Adams, C.; Álvarez-Puerta, Vicente; Ballester Merelo, Francisco José; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Toledo Alarcón, José Francisco (IOP Publishing, 2018-07)

[EN] Gaseous time projection chambers (TPC) are a very attractive detector technology for particle tracking. Characterization of both drift velocity and di¿usion is of great importance to correctly assess their tracking ...
First proof of topological signature in the high pressure xenon gas TPC with electroluminescence amplification for the NEXT experiment

Ferrario, P.; Laing, A.; Lopez-March, N.; Gomez-Cadenas, J. J.; Álvarez-Puerta, Vicente; Azevedo, C. D. R.; Borges, F.I.G.; Carcel, S.; Cebrian, S.; Cervera, A.; C.A.N. Conde; Dafni, T.; Diaz, J.; Diesburg, M.; Esteve Bosch, Raul; Mora Mas, Francisco José; Pérez-Aparicio, José L.; Querol, M.; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2016-01-19)

[EN] The NEXT experiment aims to observe the neutrinoless double beta decay of 136Xe in a high-pressure xenon gas TPC using electroluminescence (EL) to amplify the signal from ionization. One of the main advantages of this ...
Low-diffusion Xe-He gas mixtures for rare-event detection: electroluminescence yield

Fernandes, A.F.M.; Henriques, C.A.O.; Mano, R.D.P.; González-Díaz, D.; Azevedo, C.D.R.; Silva, P.A.O.C.; Gómez-Cadenas, J.J.; Freitas, E.D.C.; Fernandes, L.M.P.; Monteiro, C.M.B.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Bailey, K.; Ballester Merelo, Francisco José; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2020-04-06)

[EN] High pressure xenon Time Projection Chambers (TPC) based on secondary scintillation (electroluminescence) signal amplification are being proposed for rare event detection such as directional dark matter, double electron ...
Microscopic simulation of xenon-based optical TPCs in the presence of molecular additives

Azevedo, C.D.R.; Gonzalez-Diaz, D.; Biagi, S. F.; Oliveira, C. A. B.; Henriques, C. A. O.; Escada, J.; Monrabal, F.; Gomez-Cadenas, J. J.; Álvarez-Puerta, Vicente; Alvarez, V.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Querol-Segura, Marc; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Elsevier, 2018)

[EN] We introduce a simulation framework for the transport of high and low energy electrons in xenon-based optical time projection chambers (OTPCs). The simulation relies on elementary cross sections (electron-atom and ...
Mitigation of backgrounds from cosmogenic Xe-137 in xenon gas experiments using He-3 neutron capture

Rogers, L.; Jones, B. J. P.; Laing, A.; Pingulkar, S.; Smithers, B.; Woodruff, K.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I. J.; Azevedo, C. D. R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodríguez, J. M.; Borges, F. I. G. M.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (IOP Publishing, 2020-07)

[EN] Xe-136 is used as the target medium for many experiments searching for 0 nu beta beta. Despite underground operation, cosmic muons that reach the laboratory can produce spallation neutrons causing activation of detector ...
NEXT-100 Technical Design Report (TDR). Executive summary

Álvarez Puerta, Vicente; Borges, F.I.G.M.; Cárcel García, Sara; Carmona, J. M.; Castel, J.; Catalá Civera, José Manuel; Cebrián, S.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Marí Romero, Antonio Francisco; Monzó Ferrer, José María; Mora Mas, Francisco José; Palma Guerrero, Roberto; Pérez Aparicio, José Luis; Toledo Alarcón, José Francisco (Institute of Physics: Hybrid Open Access, 2012-06)

[EN] In this Technical Design Report (TDR) we describe the NEXT-100 detector that will search for neutrinoless double beta decay (ßß0v) in 136XE at the Laboratorio Subterráneo de Canfranc (LSC), in Spain. The document ...
Radio Frequency and DC High Voltage Breakdown of High Pressure Helium, Argon, and Xenon

Woodruff, K.; Baeza-Rubio, J.; Huerta, D.; Jones, B. J. P.; McDonald, A. D.; Norman, L.; Nygren, D. R.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I. J.; Azevedo, C. D. R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodriguez, J. M.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (IOP Publishing, 2020-04)

[EN] Motivated by the possibility of guiding daughter ions from double beta decay events to single-ion sensors for barium tagging, the NEXT collaboration is developing a program of R&D to test radio frequency (RF) carpets ...
Radiogenic backgrounds in the NEXT double beta decay experiment

Novella, P.; Palmeiro, B.; Sorel, M.; Usón, A.; Ferrario, P.; Gómez-Cadenas, J. J.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Azevedo, C.D.R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodríguez, J. M.; Borges, F. I. G. M.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2019-10-04)

[EN] Natural radioactivity represents one of the main backgrounds in the search for neutrinoless double beta decay. Within the NEXT physics program, the radioactivity- induced backgrounds are measured with the NEXT-White ...
Radiopurity assessment of the energy readout for the NEXT double beta decay experiment

Cebrian, S.; Perez, J.; Bandac, I.; Labarga, L.; Álvarez-Puerta, Vicente; Azevedo, C. D. R.; Benlloch-Rodriguez, J. M.; Borges, F. I. G. M.; Botas, A.; Carcel, S.; Carrión, J.V.; Conde, C. A. N.; Diaz, J.; Diesburg, M.; Escada, J.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Querol-Segura, Marc; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (IOP Publishing, 2017-08-21)

[EN] The "Neutrino Experiment with a Xenon Time-Projection Chamber" (NEXT) experiment intends to investigate the neutrinoless double beta decay of 136Xe, and therefore requires a severe suppression of potential backgrounds. ...
Results of the material screening program of the NEXT experiment

Dafni, T.; Álvarez-Puerta, Vicente; Bandac, I.; Bettini, A.; Borges, F. I. G. M.; Camargo, M.; Carcel, S.; Cebrian, S.; Cervera, A.; Conde, C. A. N.; Diaz, J.; Esteve Bosch, Raul; Fernandes, L. M. P.; Fernandez, M.; Ferrario, P.; Mora Mas, Francisco José; Pérez-Aparicio, José L.; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Elsevier, 2016)

[EN] The Neutrino Experiment with a Xenon TPC (NEXT), intended to investigate neutrinoless double beta decay, requires extremely low background levels. An extensive material screening and selection process to assess the ...
Secondary scintillation yield of xenon with sub-percent levels of CO2 additive for rare-event detection

HENRIQUES, C.A.; Freitas, E.D.C.; Azevedo, C.D.R.; González-Díaz, D.; Mano, R.D.P.; Jorge, M.R.; Fernandes, L.M.P.; Monteiro, C.M.B.; Gómez-Cadenas, J.J.; Álvarez-Puerta, Vicente; Benlloch-Rodríguez, J.M.; Borges, F.I.G.M.; Botas, A.; Cárcel García, Sara; Carrión Burguete, José Vicente; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Querol-Segura, Marc; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Elsevier, 2017-10-10)

[EN] Xe-CO2 mixtures are important alternatives to pure xenon in Time Projection Chambers (TPC) based on secondary scintillation (electroluminescence) signal amplification with applications in the important field of rare ...
Sensitivity of NEXT-100 to neutrinoless double beta decay

Martín-Albo, J.; Muñoz Vidal, J.; Ferrario, P.; Nebot-Guinot, M.; Gomez-Cadenas, J. J.; Álvarez-Puerta, Vicente; Azevedo, C.D.R.; Borges, F.I.G.; Carcel, S.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Querol, M.; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2016-05-26)

[EN] NEXT-100 is an electroluminescent high-pressure xenon gas time projection chamber that will search for the neutrinoless double beta (0¿ßß) decay of 136Xe. The detector possesses two features of great value for 0¿ßß ...
Sensitivity of the NEXT experiment to 124-Xe double electron capture

Martinez-Lema, G.; Martinez-Vara, M.; Sorel, M.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Azevedo, C. D. R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodriguez, J. M.; Borges, F. I. G. M.; Byrnes, N.; Carcel, S.; Carrión, J. V.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2021-02-24)

[EN] Double electron capture by proton-rich nuclei is a second-order nuclear process analogous to double beta decay. Despite their similarities, the decay signature is quite di erent, potentially providing a new channel ...