Explanipedia

PlomBOX: a low cost bioassay for the sensitive detection of lead in drinking water Open

A. Dias, María Fernanda Álvarez, Yamila B. Gándola, A. Deisting, Ezequiel J. Alba-Posse , et al. · 2025

Simulation of PeV atmospheric showers for SWGO Open

A. Chiavassa, L. Conti, F. Nardi, Tommaso Guercio, Riccardo Lui , et al. · 2023

The recent discovery of PeV gamma-ray emission especially from the LHAASO observatory, located in the Northern hemisphere, boosted the relevance of observing the Southern sky at such \nenergies. SWGO (SouthernWide-Field Gamma-Ray Observato…

The Mercedes water Cherenkov detector: a multi-PMT shallow tank design proposal for ground-based gamma-ray observatories Open

U. Barres de Almeida, P. Assis, Luis Miguel Domingues Mendes, Guilherme F. Franco, B. S. González , et al. · 2023

We present the concept of a shallow, single-layer, multi-PMT water Cherenkov detector (WCD) unit for ground-based gamma-ray astronomy. The design was developed as part of the R&D activities for SWGO, as a candidate WCD unit solution for th…

$S_b$ for gamma/hadron separation in SWGO Open

L. Nellen, Indira D. Vergara Quispe, Patricia María Hansen, Analisa Mariazzi, Diego D. Melo , et al. · 2023

The Southern Wide-field Gamma-ray Observatory (SWGO) is an international collaboration working on a ground-based gamma-ray observatory that will be located in the southern hemisphere.\nA crucial step in the analysis is to identify the show…

Estimating the potential of SWGO to measure the composition-dependent behaviour of the CR anisotropy Open

Rodrigo Guedes Lang, P. Abreu, A. Albert, Ruben Jose Alfaro, Alexander Alfonso , et al. · 2023

Current cosmic ray anisotropy experiments have shown a significant swing in both the direction and the amplitude of the dipole at energies around tens of TeV. Due to the charged nature of these particles, and the presence of magnetic field…

An update on site search activities for SWGO Open

M. Santander, P. Abreu, A. Albert, Ruben Jose Alfaro, Alexander Alfonso , et al. · 2023

The Southern Wide-field Gamma-ray Observatory (SWGO) is a project by scientists and engineers from 14 countries and 78 institutions to design and build the first wide-field, ground-based gamma-ray observatory in the Southern Hemisphere, wi…

Dark Matter searches in Dwarf Galaxies with the Southern Wide-field Gamma-ray Observatory Open

Micael Andrade, P. Abreu, A. Albert, Ruben Jose Alfaro, Alexander Alfonso , et al. · 2023

Dark matter is thought to make up most of the matter density of the Universe, yet its true nature remains uncertain. Among dark matter theories, Weakly Interacting Massive Particles (WIMPs) are a prominent candidate for dark matter because…

Status of the SWGO air shower reconstruction using a template-based likelihood method Open

Franziska Leitl, P. Abreu, A. Albert, Ruben Jose Alfaro, Alexander Alfonso , et al. · 2023

The Southern Wide-field Gamma-ray Observatory (SWGO) is a proposed facility for ground-based gamma-ray astronomy. It will consist of an array of water Cherenkov detectors to detect astrophysical gamma-rays mainly in the range of hundreds o…

Manufacture Details of a SWGO Double-Layer Tank Design - Water Cherenkov Detector Prototype Open

Jose A. Bellido, P. Abreu, A. Albert, Ruben Jose Alfaro, Alexander Alfonso , et al. · 2023

Water-Cherenkov detectors (WCD) have been manufactured in Australia by the company AQUAMATE as part of the R&D activities for SWGO. They consist of a steel tank frame with a bladder on its interior satisfying the SWGO double-layer tank des…

Wavelength-shifting light traps for SWGO and other applications Open

Marine Pihet, P. Abreu, A. Albert, Ruben Jose Alfaro, Alexander Alfonso , et al. · 2023

Wavelength-shifting (WLS) materials contain molecules that absorb light and reemit at longer wavelengths. They can be used for light detection because they provide a large effective area for low cost and they are able to efficiently trap a…

Low-cost Oceanographic Buoy for Evaluating the Mechanical Resistance of a Water Cherenkov Detector to be deployed on a high-altitude Natural Lake in Peru. Open

Sonia Diana Quispe Mamani, A. Alcántara, Rolando Moises Perca Gonzales, Christian Roland Levita Pari, Pablo Raul Yanyachi , et al. · 2023

The SWGO Collaboration is evaluating the possibility of deploying Water Cherenkov Detectors (WCD) in a high-altitude natural lake. For that, the first challenge is to build a bladder strong enough that could be used as a WCD inside a natur…

QUBIC Experiment Toward the First Light Open

G. D’Alessandro, E. S. Battistelli, P. de Bernardis, M. De Petris, M.M. Gamboa Lerena , et al. · 2022

QUBIC II: Spectral polarimetry with bolometric interferometry Open

L. Mousset, M.M. Gamboa Lerena, E. S. Battistelli, P. de Bernardis, P. Chanial , et al. · 2022

Bolometric interferometry is a novel technique that has the ability to perform spectral imaging. A bolometric interferometer observes the sky in a wide frequency band and can reconstruct sky maps in several sub-bands within the physical ba…

QUBIC IV: Performance of TES bolometers and readout electronics Open

M. Piat, G. Stankowiak, E. S. Battistelli, P. de Bernardis, G. D’Alessandro , et al. · 2022

A prototype version of the Q & U bolometric interferometer for cosmology (QUBIC) underwent a campaign of testing in the laboratory at Astroparticle Physics and Cosmology laboratory in Paris (APC). The detection chain is currently made of 2…

QUBIC VIII: Optical design and performance Open

C. O’Sullivan, M. De Petris, G. Amico, E. S. Battistelli, P. de Bernardis , et al. · 2022

The Q and U Bolometric Interferometer for Cosmology (QUBIC) is a ground-based experiment that aims to detect B-mode polarization anisotropies [1] in the CMB at angular scales around the ℓ ≃100 recombination peak. Systematic errors make gro…

The QICK (Quantum Instrumentation Control Kit): Readout and control for qubits and detectors Open

Leandro Stefanazzi, Kenneth Treptow, Neal Wilcer, Chris Stoughton, Collin Bradford , et al. · 2022

We introduce a Xilinx RF System-on-Chip (RFSoC)-based qubit controller (called the Quantum Instrumentation Control Kit, or QICK for short), which supports the direct synthesis of control pulses with carrier frequencies of up to 6 GHz. The …

QUBIC VI: Cryogenic half wave plate rotator, design and performance Open

G. D’Alessandro, L. Mele, F. Columbro, G. Amico, E. S. Battistelli , et al. · 2022

Setting an upper limit or detection of B-mode polarization imprinted by gravitational waves from Inflation is one goal of modern large angular scale cosmic microwave background (CMB) experiments around the world. A great effort is being ma…

QUBIC III: Laboratory characterization Open

S. Torchinsky, J.–Ch. Hamilton, M. Piat, E. S. Battistelli, P. de Bernardis , et al. · 2022

We report on an extensive test campaign of a prototype version of the QUBIC (Q & U Bolometric Interferometer for Cosmology) instrument, carried out at Astroparticle Physics and Cosmology (APC) in Paris. Exploiting the novel concept called …

The QICK (Quantum Instrumentation Control Kit): Readout and control for qubits and detectors Open

Leandro Stefanazzi, Ken Treptow, Neal Wilcer, Chris Stoughton, Salvatore Montella , et al. · 2021

We introduce a Xilinx RFSoC-based qubit controller (called the Quantum Instrumentation Control Kit, or QICK for short) which supports the direct synthesis of control pulses with carrier frequencies of up to 6 GHz. The QICK can control mult…

GDAS atmospheric models in astroparticle shower simulations Open

Jennifer Grisales-Casadiegos, C. Sarmiento‐Cano, Luis A. Núñez, Vicente Agosín, Angelines Alberto Morillas , et al. · 2021

Atmospheric conditions affect the development of cascades of secondary particles produced by primary cosmic rays. Global Data Assimilation System, implementing atmospheric models based on meteorological measurements and numerical weather p…

Forbush decrease on September 6-13, 2017 observed by the Tanca water-Cherenkov detector Open

Renan de Aguiar, A. C. Fauth, Vicente Agosín, Angelines Alberto Morillas, César Álvarez Ochoa , et al. · 2021

Solar activity was intense in September 2017 and its effects were observed in different detectors placed at the Earth's surface. Three halo Coronal Mass Ejections (CME) hit the planet and caused magnetic storms. The effects of the CMEs on …

Observations of the cosmic ray detector at the Argentine Marambio base in the Antarctic Peninsula Open

Noelia Ayelén Santos, S. Dasso, Adriana M. Gulisano, O. Areso, Matías Pereira , et al. · 2021

In March 2019 a Space Weather Laboratory was deployed at Marambio base in the Antarctic Peninsula. The main instrument installed was a cosmic ray detector based on water Cherenkov radiation. This detector is the first permanent Antarctic n…

Detection chain and electronic readout of the QUBIC instrument Open

G. Stankowiak, Michel Piat, E. S. Battistelli, G D'alessandro, Paolo de Bernardis , et al. · 2020

The Q and U Bolometric Interferometer for Cosmology (QUBIC) Technical Demonstrator (TD) aiming to shows the feasibility of the combination of interferometry and bolometric detection. The electronic readout system is based on an array of 12…

QUBIC II: Spectro-Polarimetry with Bolometric Interferometry Open

L. Mousset, Gamboa Lerena, E. S. Battistelli, P. de Bernardis, P. Chanial , et al. · 2020

Bolometric interferometry is a novel technique that has the ability to perform spectral imaging. A bolometric interferometer observes the sky in a wide frequency band and can reconstruct sky maps in several sub-bands within the physical ba…

QUBIC VI: cryogenic half wave plate rotator, design and performances Open

G. D’Alessandro, L. Mele, F. Columbro, Giovanni D’Amico, E. S. Battistelli , et al. · 2020

Inflation Gravity Waves B-Modes polarization detection is the ultimate goal of modern large angular scale cosmic microwave background (CMB) experiments around the world. A big effort is undergoing with the deployment of many ground-based, …

The QUBIC instrument for CMB polarization measurements Open

L. Mele, P. A. R. Ade, J G Alberro, A. Almela, G. Amico , et al. · 2020

Measurements of cosmic microwave background (CMB) polarization may reveal the presence of a background of gravitational waves produced during cosmic inflation, providing thus a test of inflationary models. The Q&U Bolometric Interferometer…

QUBIC: Using NbSi TESs with a Bolometric Interferometer to Characterize the Polarization of the CMB Open

M. Piat, B. Bélier, L. Bergé, N. Bleurvacq, C. Chapron , et al. · 2020

QUBIC: The Q & U Bolometric Interferometer for Cosmology Open

E. S. Battistelli, P. A. R. Ade, J.G. Alberro, A. Almela, G. Amico , et al. · 2020

Estudio de la señal de salida y diseño de la red de polarización de tubos fotomultiplicadores Open

Horacio Arnaldi · 2019

Se realiza un análisis de los factores intervinientes en la formación de la señal de los tubos fotomultiplicadores. Estos dispositivos son detectores de luz extremadamente sensibles, muy utilizados en aplicaciones de conteo de fotones. Se …

Study of the output signal and design of the polarization network of photomultiplier tubes Open

Horacio Arnaldi · 2019

An analysis of the factors involved in the signal formation of the photomultiplier tubes is performed. These devices are extremely sensitive light detectors, widely used in photon counting applications. The study and design of the polariza…

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