J.L. Pérez–Aparicio
A5105883434- Neutrino Physics Research
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Structural Health Monitoring Techniques
- Atomic and Subatomic Physics Research
- Advanced Thermoelectric Materials and Devices
- Particle physics theoretical and experimental studies
- Ultrasonics and Acoustic Wave Propagation
- Thermoelastic and Magnetoelastic Phenomena
- Composite Structure Analysis and Optimization
- Mechanical Behavior of Composites
- Thermal properties of materials
- Magnetic Properties and Applications
- Vibration Control and Rheological Fluids
- Elasticity and Wave Propagation
- Hydrology and Sediment Transport Processes
- Numerical methods in engineering
- Vibration and Dynamic Analysis
- Masonry and Concrete Structural Analysis
- Thermography and Photoacoustic Techniques
- Non-Destructive Testing Techniques
- Soil erosion and sediment transport
- Structural Response to Dynamic Loads
- Nuclear Physics and Applications
Universitat Politècnica de València
2012-2023
Hospital de Basurto
2022
Universitat Jaume I
2018
Universitat de València
2008
Universidad de Granada
2006
Instituto Politécnico Nacional
2004
Comillas Pontifical University
1999
Muroran Institute of Technology
1993-1995
Stanford University
1990-1993
Stanford Synchrotron Radiation Lightsource
1993
In this Technical Design Report (TDR) we describe the NEXT-100 detector that will search for neutrinoless double beta decay (ββ0ν) in 136XE at Laboratorio Subterráneo de Canfranc (LSC), Spain. The document formalizes design presented our Conceptual (CDR): an electroluminescence time projection chamber, with separate readout planes calorimetry and tracking, located, respectively, behind cathode anode. is designed to hold a maximum of about 150 kg xenon 15 bar, or 100 10 bar. This option...
NEXT is an experiment dedicated to neutrinoless double beta decay searches in xenon. The detector a TPC, holding 100 kg of high-pressure xenon enriched the 136 Xe isotope. It under construction Laboratorio Subterráneo de Canfranc Spain, and it will begin operations 2015. concept provides energy resolutionbetter than 1% FWHM topological signal that can be used reduce background. Furthermore, technology extrapolated 1 ton-scale experiment.
The NEXT experiment aims to observe the neutrinoless double beta decay of 136Xe in a high-pressure xenon gas TPC using electroluminescence (EL) amplify signal from ionization. One main advantages this technology is possibility reconstruct topology events with energies close Q ββ . This paper presents first demonstration that provides extra handles reject background data obtained NEXT-DEMO prototype. Single electrons resulting interactions 22Na 1275 keV gammas and electronpositron pairs...
A progressive failure model that was developed earlier for tensile loading is extended laminated composites under uniaxial compressive loading. This capable of predicting the extent damage at any load level, stiffness loss, stress- strain behavior and residual strength laminates. The composed stress analysis, analysis a degradation damaged lamina. Comparison with three sets experimental data shows good correlation obtained between theoretical prediction ultimate strength. predicted...
NEXT-DEMO is a high-pressure xenon gas TPC which acts as technological test-bed and demonstrator for the NEXT-100 neutrinoless double beta decay experiment. In its current configuration apparatus fully implements design concept. This an asymmetric TPC, with energy plane made of photomultipliers tracking silicon (SiPM) coated TPB. The detector in this new has been used to reconstruct characteristic signature electrons dense gas, demonstrating ability identify MIP ``blob'' regions. Moreover,...
We propose an EASY (Electroluminescent ApparatuS of high Yield) and SOFT (Separated Optimized FuncTion) time-projection chamber for the NEXT experiment, that will search neutrinoless double beta decay (bb0nu) in Xe-136. Our experiment must be competitive with new generation bb0nu searches already operation or construction. This requires a detector very good energy resolution (<1%), low background con- tamination (1E-4 counts/(keV \bullet kg y)) large target mass. In addition, it needs to...
NEXT-DEMO is a large-scale prototype of the NEXT-100 detector, an electroluminescent time projection chamber that will search for neutrinoless double beta decay \XE using 100–150 kg enriched xenon gas. was built to prove expected performance NEXT-100, namely, energy resolution better than 1% FWHM at 2.5 MeV and event topological reconstruction. In this paper we describe its initial results. A 1.75% 511 keV (which extrapolates 0.8% MeV) obtained 10 bar pressure gamma-ray calibration source....
The Neutrino Experiment with a Xenon TPC (NEXT) is intended to investigate the neutrinoless double beta decay of 136Xe, which requires severe suppression potential backgrounds. An extensive screening and material selection process underway for NEXT since control radiopurity levels materials be used in experimental set-up must rare event searches. First measurements based on Glow Discharge Mass Spectrometry gamma-ray spectroscopy using ultra-low background germanium detectors at Laboratorio...
We report the performance of a 10 atm Xenon/trimethylamine time projection chamber (TPC) for detection X-rays (30 keV) and γ-rays (0.511–1.275 MeV) in conjunction with accurate tracking associated electrons. When operated at such high pressure ~1%-admixtures, trimethylamine (TMA) endows Xenon an extremely low electron diffusion (1.3±0.13mm-σ (longitudinal), 0.95±0.20mm-σ (transverse) along 1 m drift) besides forming convenient 'Penning-Fluorescent' mixture. The TPC, that houses 1.1 kg gas...
The Neutrino Experiment with a Xenon Time-Projection Chamber (NEXT) is intended to investigate the neutrinoless double beta decay of 136Xe, which requires severe suppression potential backgrounds; therefore, an extensive screening and selection process underway control radiopurity levels materials be used in experimental set-up NEXT. detector design combines measurement topological signature event for background discrimination energy resolution optimization. Separate tracking readout planes...
Abstract This work is concerned with the design of hip prostheses using advanced fiber reinforced composite materials. The major focus study to evaluate how stiffness and strength can be affected by variations in ply orientation stacking sequence for a selected manufacturing method. investigation involved both analytical experimental work. An model was developed which consists stress analysis failure analysis. A finite element program during course analyzing stresses, strains, deformations...
Magnetostriction is a phenomenon observed in all ferromagnetic materials. It couples elastic, electric, magnetic and some situations also thermal fields of great industrial interest for use sensors, actuators, adaptive or functional structures, robotics, transducers MEMS.
NEXT-MM is a general-purpose high pressure (10 bar, $\sim25$ l active volume) Xenon-based TPC, read out in charge mode with an 8 cm $\times$8 cm-segmented 700 cm$^2$ plane (1152 ch) of the latest microbulk-Micromegas technology. It has been recently commissioned at University Zaragoza as part R&D NEXT $0\nu\beta\beta$ experiment, although experiment's first stage currently being built based on SiPM/PMT-readout concept relying electroluminescence. Around 2 million events were collected during...
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 scintillation properties at 10 bar pressure. For purpose, use source alpha particles NEXT-DEMO time projection chamber, large scale prototype NEXT-100 neutrinoless double beta decay experiment, three different drift electric field configurations. We measure electron velocity longitudinal diffusion, compare our results to...
The NEXT experiment aims to observe the neutrinoless double beta decay of $^{136}$Xe in a high pressure gas TPC using electroluminescence (EL) amplify signal from ionization. Understanding response detector is imperative achieving consistent and well understood energy measurement. abundance xenon k-shell x-ray emission during data taking has been identified as multitool for characterisation fundamental parameters equalisation detector. NEXT-DEMO prototype ~1.5 kg volume filled with natural...
This work focused on the analysis of laminated composite structures with a thick cross section. investigation involved both analytical and experimental work. An efficient finite element was proposed for analyzing structures. The major feature that each in can ac commodate several layers having different ply orientations. A three-dimensional ele ment program developed during calculating stresses, strains, deformations bends. In order to verify numerical calculations, experiments were also...