104 citations · 846 across the 28 of their papers we have counts for
28 papers
Study of the loss of Xenon Scintillation in Xenon-Trimethylamine Mixtures
A. M. F. Trindade, J. Escada, A. F. V. Cortez +75
This work investigates the capability of TMA ((CH3)3N) molecules to shift the wavelength of Xe VUV emission (160-188 nm) to a longer, more manageable, wavelength (260-350 nm). Ligh…
Demonstration of Single Barium Ion Sensitivity for Neutrinoless Double Beta Decay using Single Molecule Fluorescence Imaging
A. D. McDonald, B. J. P. Jones, D. R. Nygren +71
A new method to tag the barium daughter in the double beta decay of Xe is reported. Using the technique of single molecule fluorescent imaging (SMFI), individual barium dic…
Helium-Xenon mixtures to improve topological signature in high pressure gas Xenon TPCs
R. Felkai, F. Monrabal, D. Gonzalez-Díaz +72
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 (…
Microscopic simulation of xenon-based optical TPCs in the presence of molecular additives
C. D. R. Azevedo, D. Gonzalez-Diaz, S. F. Biagi +67
We introduce a simulation framework for the transport of high and low energy electrons in xenon-based gaseous optical time projection chambers (OTPCs). The simulation relies on ele…
Radiopurity assessment of the energy readout for the NEXT double beta decay experiment
S. Cebrián, J. Pérez, I. Bandac +67
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 s…
Application and performance of an ML-EM algorithm in NEXT
NEXT Collaboration, A. Simón, C. Lerche +67
The goal of the NEXT experiment is the observation of neutrinoless double beta decay in Xe using a gaseous xenon TPC with electroluminescent amplification and specialized p…
Secondary scintillation yield of Xenon with sub-percent levels of CO2 additive: efficiently reducing electron diffusion in HPXe optical TPCs for rare-event detection
C. A. O. Henriques, E. D. C. Freitas, C. D. R. Azevedo +67
We have measured the electroluminescence (EL) yield of Xe-CO2 mixtures, with sub-percent CO2 concentrations. We demonstrate that the EL production is still high in these mixtures,…
Background rejection in NEXT using deep neural networks
NEXT Collaboration, J. Renner, A. Farbin +64
We investigate the potential of using deep learning techniques to reject background events in searches for neutrinoless double beta decay with high pressure xenon time projection c…
Sensitivity of NEXT-100 to neutrinoless double beta decay
NEXT Collaboration, J. Martín-Albo, J. Muñoz Vidal +60
NEXT-100 is an electroluminescent high-pressure xenon gas time projection chamber that will search for the neutrinoless double beta () decay of Xe-136. The detector possesse…
First proof of topological signature in the high pressure xenon gas TPC with electroluminescence amplification for the NEXT experiment
NEXT Collaboration, P. Ferrario, A. Laing +67
The NEXT experiment aims to observe the neutrinoless double beta decay of xenon in a high-pressure Xe136 gas TPC using electroluminescence (EL) to amplify the signal from ionizatio…
Radon and material radiopurity assessment for the NEXT double beta decay experiment
S. Cebrián, J. Pérez, I. Bandac +67
The Neutrino Experiment with a Xenon TPC (NEXT), intended to investigate the neutrinoless double beta decay using a high-pressure xenon gas TPC filled with Xe enriched in 136Xe at…
Accurate gamma and MeV-electron track reconstruction with an ultra-low diffusion Xenon/TMA TPC at 10 atmospheres
Diego Gonzalez-Diaz, V. Alvarez, F. I. G. Borges +80
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 t…
An improved measurement of electron-ion recombination in high-pressure xenon gas
NEXT Collaboration, L. Serra, M. Sorel +64
We report on results obtained with the NEXT-DEMO prototype of the NEXT-100 high-pressure xenon gas time projection chamber (TPC), exposed to an alpha decay calibration source. Comp…
Results of the material screening program of the NEXT experiment
T. Dafni, V. Alvarez, I. Bandac +67
The 'Neutrino Experiment with a Xenon TPC (NEXT)', intended to investigate neutrinoless double beta decay, requires extremely low background levels. An extensive material screening…
Radiopurity assessment of the tracking readout for the NEXT double beta decay experiment
S. Cebrián, J. Pérez, I. Bandac +68
The Neutrino Experiment with a Xenon Time-Projection Chamber (NEXT) is intended to investigate the neutrinoless double beta decay of 136Xe, which requires a severe suppression of p…
Ionization and scintillation of nuclear recoils in gaseous xenon
J. Renner, V. M. Gehman, A. Goldschmidt +75
Ionization and scintillation produced by nuclear recoils in gaseous xenon at approximately 14 bar have been simultaneously observed in an electroluminescent time projection chamber…
Characterisation of NEXT-DEMO using xenon K X-rays
NEXT Collaboration, D. Lorca, J. Martín-Albo +63
The NEXT experiment aims to observe the neutrinoless double beta decay of Xe in a high pressure gas TPC using electroluminescence (EL) to amplify the signal from ionization…
Description and commissioning of NEXT-MM prototype: first results from operation in a Xenon-Trimethylamine gas mixture
NEXT Collaboration, V. Álvarez, F. Aznar +82
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 larg…
Characterization of a medium size Xe/TMA TPC instrumented with microbulk Micromegas, using low-energy -rays
The NEXT collaboration, V. Alvarez, F. I. G. M. Borges +87
NEXT-MM is a general-purpose high pressure (10 bar, l active volume) Xenon-based TPC, read out in charge mode with an 8 cm 8 cm-segmented 700 cm plane (1152 ch…
Present status and future perspectives of the NEXT experiment
The NEXT Collaboration, J. J. Gómez-Cadenas, V. Álvarez +74
NEXT is an experiment dedicated to neutrinoless double beta decay searches in xenon. The detector is a TPC, holding 100 kg of high-pressure xenon enriched in the Xe isotope…
Operation and first results of the NEXT-DEMO prototype using a silicon photomultiplier tracking array
The NEXT Collaboration, V. Álvarez, F. I. G. Borges +75
NEXT-DEMO is a high-pressure xenon gas TPC which acts as a technological test-bed and demonstrator for the NEXT-100 neutrinoless double beta decay experiment. In its current config…
Near-Intrinsic Energy Resolution for 30 to 662 keV Gamma Rays in a High Pressure Xenon Electroluminescent TPC
NEXT Collaboration, V. Álvarez, F. I. G. M. Borges +75
We present the design, data and results from the NEXT prototype for Double Beta and Dark Matter (NEXT-DBDM) detector, a high-pressure gaseous natural xenon electroluminescent time…
In-situ calibration of a PMT inside a scintillation detector by means of primary scintillation detection
NEXT Collaboration, V. Álvarez, F. I. G. M. Borges +75
We have investigated the possibility of calibrating the PMTs of scintillation detectors, using the primary scintillation produced by X-rays to induce single photoelectron response…
Initial results of NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment
NEXT Collaboration, V. Álvarez, F. I. G. M. Borges +75
NEXT-DEMO is a large-scale prototype of the NEXT-100 detector, an electroluminescent time projection chamber that will search for the neutrinoless double beta decay of Xe-136 using…