F. López
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View article: CRYSP: a Total-Body PET based on cryogenic cesium iodide crystals
CRYSP: a Total-Body PET based on cryogenic cesium iodide crystals Open
Total Body PET (TBPET) scanners have recently demonstrated the ability to significantly reduce both acquisition time and the administered radioactive dose, thanks to their increased sensitivity. However, their widespread adoption is limite…
View article: Performance of an Optical TPC Geant4 Simulation with Opticks GPU-Accelerated Photon Propagation
Performance of an Optical TPC Geant4 Simulation with Opticks GPU-Accelerated Photon Propagation Open
We investigate the performance of Opticks, a NVIDIA OptiX API 7.5 GPU-accelerated photon propagation tool compared with a single-threaded Geant4 simulation. We compare the simulations using an improved model of the NEXT-CRAB-0 gaseous time…
View article: Reconstructing neutrinoless double beta decay event kinematics in a xenon gas detector with vertex tagging
Reconstructing neutrinoless double beta decay event kinematics in a xenon gas detector with vertex tagging Open
If neutrinoless double beta decay is discovered, the next natural step would be understanding the lepton number violating physics responsible for it. Several alternatives exist beyond the exchange of light neutrinos. Some of these mechanis…
View article: Design, characterization and installation of the NEXT-100 cathode and electroluminescence regions
Design, characterization and installation of the NEXT-100 cathode and electroluminescence regions Open
NEXT-100 is currently being constructed at the Laboratorio Subterráneo de Canfranc in the Spanish Pyrenees and will search for neutrinoless double beta decay using a high-pressure gaseous time projection chamber (TPC) with 100 kg of xenon.…
View article: Design, characterization and installation of the NEXT-100 cathode and electroluminescence regions
Design, characterization and installation of the NEXT-100 cathode and electroluminescence regions Open
NEXT-100 is currently being constructed at the Laboratorio Subterráneo de Canfranc in the Spanish Pyrenees and will search for neutrinoless double beta decay using a high-pressure gaseous time projection chamber (TPC) with 100 kg of xenon.…
View article: Demonstration of Event Position Reconstruction based on Diffusion in the NEXT-White Detector
Demonstration of Event Position Reconstruction based on Diffusion in the NEXT-White Detector Open
Noble element time projection chambers are a leading technology for rare event detection in physics, such as for dark matter and neutrinoless double beta decay searches. Time projection chambers typically assign event position in the drift…
View article: NEXT-CRAB-0: a high pressure gaseous xenon time projection chamber with a direct VUV camera based readout
NEXT-CRAB-0: a high pressure gaseous xenon time projection chamber with a direct VUV camera based readout Open
The search for neutrinoless double beta decay (0 νββ ) remains one of the most compelling experimental avenues for the discovery in the neutrino sector. Electroluminescent gas-phase time projection chambers are well suited to 0 νββ searche…
View article: A compact dication source for Ba<sup>2+</sup> tagging and heavy metal ion sensor development
A compact dication source for Ba<sup>2+</sup> tagging and heavy metal ion sensor development Open
We present a tunable metal ion beam that delivers controllable ion currents in the picoamp range for testing of dry-phase ion sensors. Ion beams are formed by sequential atomic evaporation and single or multiple electron impact ionization,…
View article: Demonstration of neutrinoless double beta decay searches in gaseous xenon with NEXT
Demonstration of neutrinoless double beta decay searches in gaseous xenon with NEXT Open
The NEXT experiment aims at the sensitive search of the neutrinoless double beta decay in $^{136}$Xe, using high-pressure gas electroluminescent time projection chambers. The NEXT-White detector is the first radiopure demonstrator of this …
View article: Optimized Design and Implementation of Digital Lock-In for Planetary Exploration Sensors
Optimized Design and Implementation of Digital Lock-In for Planetary Exploration Sensors Open
Exploring life conditions on the near-Earth planets and satellites before carrying out human missions is an important task for space agencies. For that purpose, scientific space missions usually include instruments to measure climatologica…
View article: Bi-Spectral Infrared Algorithm for Cloud Coverage over Oceans by the JEM-EUSO Mission Program
Bi-Spectral Infrared Algorithm for Cloud Coverage over Oceans by the JEM-EUSO Mission Program Open
The need to monitor specific areas for different applications requires high spatial and temporal resolution. This need has led to the proliferation of ad hoc systems on board nanosatellites, drones, etc. These systems require low cost, low…
View article: Sea-Land delineation
Sea-Land delineation Open
Example of the Sentinel-1 processing using snappy, that allows for coastline delineation with SAR.
View article: Sea-Land delineation
Sea-Land delineation Open
Example of the Sentinel-1 processing using snappy, that allows for coastline delineation with SAR.
View article: Thermal characterization of thermoplastic composites under high temperature and fire by infrared imaging
Thermal characterization of thermoplastic composites under high temperature and fire by infrared imaging Open
In the last decades, composite materials, particularly thermosetting carbon fiber reinforced polymers, have become the main structural material for the aerospace industry. Recently, interest has grown in thermoplastic composites, since the…
View article: Mapping of temperature and CO2 column density in a standard flame by multispectral imaging
Mapping of temperature and CO2 column density in a standard flame by multispectral imaging Open
Temperature measurement in flames is a challenging problem. Recently, hyperspectral imaging has demonstrated to be able to provide accurate temperature maps in a standard flame. However, hyperspectral imagers are expensive instruments, and…
View article: Analyzing short term spatial and temporal dynamics of water presence at a basin-scale in Mexico using SAR data
Analyzing short term spatial and temporal dynamics of water presence at a basin-scale in Mexico using SAR data Open
The dynamic nature of continental water body covers is a main indicator of the status of this ecological capital and its trends on the land surface. With synthetic aperture radar (SAR), various water coverage processes can be identified us…
View article: Methods to Retrieve the Cloud-Top Height in the Frame of the JEM-EUSO Mission
Methods to Retrieve the Cloud-Top Height in the Frame of the JEM-EUSO Mission Open
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 the interaction between cosmic rays and the atmo…
View article: Space evaluation of optical modulators for microwave photonic on-board applications
Space evaluation of optical modulators for microwave photonic on-board applications Open
Since several years, perspectives and assets offered by photonic technologies compared with their traditional RF counterparts (mass and volume reduction, transparency to RF frequency, RF isolation), make them particularly attractive for sp…
View article: Measurement of temperature and gas concentration in a flame using a FTIR imager
Measurement of temperature and gas concentration in a flame using a FTIR imager Open
\nNowadays, determining the temperature of flames is a challenging measurement in industry. The EMPIR project 14IND04 EMPRESS, in its WP4, address these temperature measurements. The Infrared Lab at the Physics Department of Universidad Ca…
View article: Comparing different methods to retrieve cloud top height from Meteosat satellite data
Comparing different methods to retrieve cloud top height from Meteosat satellite data Open
Cloud parameters such as the Cloud Top Height (CTH), Cloud Top Temperature (CTT), emissivity, particle size and optical depth have always been matter of interest for the atmospheric community. Particularly the CTH provides information lead…
View article: Retrieval of optically thin cloud emissivity from brightness temperatures provided by IR Camera of JEM-EUSO Mission
Retrieval of optically thin cloud emissivity from brightness temperatures provided by IR Camera of JEM-EUSO Mission Open
\nClouds interact with the radiation propagating through the atmosphere absorbing, reflecting and transmitting part of the energy. This interaction may lead to misinterpretation of data retrieved from the radiation observed by JEM-EUSO UV …
View article: Cloud phase identification based on brightness temperatures provided by the bi-spectral IR Camera of JEM-EUSO Mission
Cloud phase identification based on brightness temperatures provided by the bi-spectral IR Camera of JEM-EUSO Mission Open
\nCloud information is extremely important to correctly interpret the JEM-EUSO telescope data since UV radiation coming from the Extensive Air Shower can be partially absorbed or reflected by clouds. In order to observe the atmosphere and …