A5033894469- Dark Matter and Cosmic Phenomena
- Spectroscopy and Laser Applications
- Astrophysics and Cosmic Phenomena
- Atmospheric Ozone and Climate
- Neutrino Physics Research
- Fire dynamics and safety research
- Fire effects on ecosystems
- Gas Sensing Nanomaterials and Sensors
- Atmospheric aerosols and clouds
- Fire Detection and Safety Systems
- Thin-Film Transistor Technologies
- Calibration and Measurement Techniques
- Atmospheric and Environmental Gas Dynamics
- Liquid Crystal Research Advancements
- Planetary Science and Exploration
- Magnetic Properties and Applications
- Thermography and Photoacoustic Techniques
- Analytical Chemistry and Sensors
- Photonic and Optical Devices
- Acoustic Wave Resonator Technologies
- Atomic and Subatomic Physics Research
- Solar Radiation and Photovoltaics
- Infrared Target Detection Methodologies
- Ion-surface interactions and analysis
- Radio Astronomy Observations and Technology
Basque Centre for Climate Change
2023-2024
Donostia International Physics Center
2023-2024
Instituto de Instrumentación para Imagen Molecular
2023
Universitat Politècnica de València
2023
Universidad de Zaragoza
2023
Universitat de València
2023
Weizmann Institute of Science
2023
Universidade de Santiago de Compostela
2023
Instituto de Física Corpuscular
2023
Ben-Gurion University of the Negev
2023
A bstract The NEXT experiment aims at the sensitive search of neutrinoless double beta decay in 136 Xe, using high-pressure gas electroluminescent time projection chambers. NEXT-White detector is first radiopure demonstrator this technology, operated Laboratorio Subterráneo de Canfranc. Achieving an energy resolution 1% FWHM 2.6 MeV and further background rejection by means topology reconstructed tracks, has been exploited beyond its original goals order to perform a neu- trinoless search....
If neutrinoless double beta decay is discovered, the next natural step would be understanding lepton number violating physics responsible for it. Several alternatives exist beyond exchange of light neutrinos. Some these mechanisms can distinguished by measuring phase-space observables, namely opening angle $\cos\theta$ among two electrons, and electron energy spectra, $T_1$ $T_2$. In this work, we study statistical accuracy precision in kinematic observables a future xenon gas detector with...
We investigate the performance of Opticks, an NVIDIA OptiX API 7.5 GPU-accelerated photon propagation compared with a single-threaded Geant4 simulation. compare simulations using improved model NEXT-CRAB-0 gaseous time projection chamber. Performance results suggest that Opticks improves simulation speeds by between $58.47\pm{0.02}$ and $181.39\pm{0.28}$ times relative to CPU-only these vary different types GPU CPU. A detailed comparison shows number detected photons, along their...
Transverse susceptibility measurements are performed in cobalt polycrystalline films. Both χt(0) and χt(π/2) measured with Hdc fields up to 10Hk. Qualitative agreement Hoffmann's micromagnetic law for the is found. The structure constant S, obtained from fitting parameters, S ≈ 0.2 erg/cm2 (2 × 10−4 J/m2) sputtered films at room temperature thickness range: 30 80 nm. From a theoretical analysis it followed that this value corresponds mainly constituted by f.c.c. phase. Nous avons étudié les...
This work presents simplified models for strain and temperature measurement during orthogonal cutting process applying Ernst-Merchant theory considering a 2-D steady state heat conduction problem. In order to validate the thermal model experiments with high speed imaging Infrared were performed. The results of infrared measurements compared outputs model, average on shear plane distribution. Also video analysis technique was developed obtain in precise way classical analysis. Experiments...
The Japanese Experiment Module-Extreme Universe Space Observatory (JEM-EUSO) telescope will measure ultrahigh-energy cosmic ray properties by detecting the UV fluorescence light generated in interaction between rays and atmosphere. Therefore, information on state of clouds atmosphere is crucial for a proper interpretation data. For real-time observation field view, JEM-EUSO use an atmospheric monitoring system composed detection ranging infrared (IR) camera. In this paper, focus IR camera To...
Fire resistance tests are commonplace in industry. The aerospace sector is particularly active this area, since the behaviour of advanced materials, such as composites, when a fire not fully understood yet. Two main obstacles inherent difficulty direct surface measurements harsh environment (especially on exposed side specimens) and lack spatial resolution usual measuring devices, namely thermocouples (TCs). This paper presents way to overcome these problems by using an infrared (IR) camera...
Thermally evaporated polycrystalline lead selenide was used to make detector arrays on high-resistivity Si substrates, for use as infrared photodetectors in the range. The were made using standard photolithographic methods and a process fully compatible with technologies microelectronics industry. After activation at high temperature an atmosphere, excellent uniformity room-temperature peak detectivities up obtained. spectral response 273 K of detectors went , responsivity . These have been...
Infrared (IR) imaging is a standard technique for the detection of forest fires but its use to measure physical parameters faces difficulties due their spatial and spectral complexity. Multi-spectral images in Medium IR make possible classify scene different fire regions, thus enabling region-specific processing providing values instantaneous radiated power total energy. Comparison with energy release determined from fuel consumption results an estimation radiative fraction 14 = 3 %. It...
The effect of different duration's rabbit semen storage at 18ºC (2, 24, 48, 72, and 96 hours) on fertility prolificacy has been studied in one experiment, where a total 1447 artificial inseminations have carried out using new commercial extender, MA 24. results indicate similar (84.14%, 83.56% 79.73%) when increasing the time conservation 24 48 hours). Difference statistically significant were observed 72 hours (67.59%) fell dramatically after (39.23%). number bom kits per litter follows...
Abstract The search for neutrinoless double beta decay (0 νββ ) remains one of the most compelling experimental avenues discovery in neutrino sector. Electroluminescent gas-phase time projection chambers are well suited to 0 searches due their intrinsically precise energy resolution and topological event identification capabilities. Scalability ton- multi-ton masses requires readout large-area electroluminescent regions with fine spatial resolution, low radiogenic backgrounds, a scalable...
Abstract Noble element time projection chambers are a leading technology for rare event detection in physics, such as dark matter and neutrinoless double beta decay searches. Time typically assign position the drift direction using relative timing of prompt scintillation delayed charge collection signals, allowing reconstruction an absolute direction. In this paper, alternate methods assigning distance via quantification electron diffusion pure high pressure xenon gas chamber explored. Data...
Molecular simulation is becoming a very powerful tool for studying dynamic phenomena in materials. The yields information about interaction at length and time scales unattainable by experimental measurements unpredictable continuum theories. This especially meaningful when referring to bonding between polymer metal substrate. A important characteristic of polymers that their physical properties do not rely on the detailed chemical structure molecular chains but only flexibility, accordingly...
Abstract: During the plastic deformation of metals, part mechanical energy is retained in material as deformations and rest converted to heat. A temperature increment a measure heat generated tested specimen. This can be detected by measuring infrared (IR) radiation emitted specimen surface. study describes an attempt improve experimental procedure using IR thermography function strain studied materials. Tests were carried out under quasi‐static dynamic load conditions (using universal...
An Atmospheric Monitoring System (AMS) is mandatory and a key element of space-based mission which aims to detect Ultra-High Energy Cosmic Rays (UHECR). JEM-EUSO has dedicated atmospheric monitoring system that plays fundamental role in our understanding the conditions Field View (FoV) telescope. Our AMS consists an infrared camera LIDAR device are being fully designed with space qualification fulfil scientific requirements this mission. This will provide information cloud cover FoV...
The dynamic nature of continental water body covers is a main indicator the status this ecological capital and its trends on land surface. With synthetic aperture radar (SAR), various coverage processes can be identified using satellite data. This study proposes use basin-level analysis with SAR images at medium spatial resolution to perform regional spatial-temporal for detecting presence. It develops methodology improve separation bodies from other by texture analysis, support-vector...
In this work, a methodology based on the combined use of multilayer perceptron model fed using selected spectral information is presented to invert radiative transfer equation (RTE) and recover spatial temperature profile inside an axisymmetric flame. The provided by measurement infrared CO 2 emission band in 3–5 μm region. A guided feature selection was carried out joint criterion principal component analysis priori physical knowledge problem. After applying selection, subset 17 wavenumbers...