A5090335775- Laser-Plasma Interactions and Diagnostics
- Fusion materials and technologies
- Ion-surface interactions and analysis
- Particle accelerators and beam dynamics
- Nuclear Physics and Applications
- Electromagnetic Launch and Propulsion Technology
- High-Velocity Impact and Material Behavior
- Graphite, nuclear technology, radiation studies
- Superconducting Materials and Applications
- Astrophysics and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Nuclear Materials and Properties
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Polymer Nanocomposite Synthesis and Irradiation
- Spectroscopy Techniques in Biomedical and Chemical Research
- Inorganic Chemistry and Materials
- Medical and Biological Ozone Research
- Laser-induced spectroscopy and plasma
- Inflammatory Bowel Disease
- Luminescence Properties of Advanced Materials
- Gamma-ray bursts and supernovae
- Pancreatitis Pathology and Treatment
- Metal and Thin Film Mechanics
- Bee Products Chemical Analysis
GSI Helmholtz Centre for Heavy Ion Research
2018-2024
European Organization for Nuclear Research
2021-2024
Technical University of Darmstadt
2015-2022
Dublin City University
2017
Abstract Relativistic electron-positron plasmas are ubiquitous in extreme astrophysical environments such as black-hole and neutron-star magnetospheres, where accretion-powered jets pulsar winds expected to be enriched with pairs. Their role the dynamics of is many cases believed fundamental, but their behavior differs significantly from typical electron-ion due matter-antimatter symmetry charged components. So far, our experimental inability produce large yields positrons quasi-neutral...
Second degree burns require dressings to heal. The ideal dressing should keep a moist environment, have low cost, be elastic and bactericidal effect. potential of PVA‐NaCMC (sodium carboxymethyl cellulose) gels combine the mechanical swelling properties PVA with flexibility high water uptake NaCMC antimicrobial characteristics propolis is investigated. freeze‐thawed were characterized by FTIR DSC. Their behavior, their response, delivery active compounds also determined. main findings...
Objetivo: Analisar como diferentes padrões alimentares influenciam as fases de crise e remissão da doença Crohn. Revisão bibliográfica: A Doença Crohn (DC) é uma condição inflamatória crônica que afeta o trato gastrointestinal, caracterizando-se por remissão. Nesse sentido, a alimentação exerce papel essencial no manejo dessa doença, impactando diretamente microbiota intestinal resposta inflamatória. Durante crises, dieta equilibrada pode ajudar mitigar sintomas evitar agravamento...
<title>Abstract</title> Relativistic electron-positron (e<sup>±</sup>)plasmas are ubiquitous in extreme astrophysical environments such as black holes and neutron star magnetospheres, where accretion-powered jets pulsar winds expected to be enriched with pair plasmas. Their behaviour is quite different from typical electron-ion plasmas due the matter-antimatter symmetry of charged components their role dynamics compact objects believed fundamental. So far, our experimental inability produce...
The introduction at CERN of new extremely energetic particle accelerators, such as the high-luminosity large hadron collider (HL-LHC) or proposed future circular (FCC), will increase energy stored in circulating beams by almost a factor two (from 360 to 680 MJ) and more than 20 (up 8500 MJ), respectively. In this scenario, it is paramount assess dynamic thermomechanical response materials presently used, being developed for use, beam intercepting devices (such collimators, targets, dumps,...
An experimental scheme is presented for generating low-divergence, ultradense, relativistic, electron-positron beams using 400 GeV/c protons available at facilities such as HiRadMat and AWAKE CERN. Preliminary Monte Carlo particle-in-cell simulations demonstrate the possibility of containing 1013–1014 pairs sufficiently high densities to drive collisionless beam-plasma instabilities, which are expected play an important role in magnetic field generation related radiation signatures...
An innovative and comprehensive experiment (named "Multimat") was successfully carried out at CERN HiRadMat facility on 18 different materials relevant for Collimators Beam Intercepting Devices. Material samples, tested under high intensity proton pulses of 440 GeV/c, exceeding the energy density expected in HL-LHC, ranged from very light carbon foams to tungsten heavy alloys, including novel composites as graphite/carbides metal/diamond without with thin-film coatings. Experimental data...
An innovative and comprehensive experiment (named Multimat) was successfully carried out at CERN HiRadMat facility on 18 different materials relevant for Collimators Beam Intercepting Devices. Material samples, tested under high intensity proton pulses of 440 GeV/c, exceeding the energy density expected in HL-LHC, ranged from very light carbon foams to tungsten heavy alloys, including novel composites as graphite/carbides metal/diamond without with thin-film coatings. Experimental data were...
HRMT-60 experiment was performed at the CERN-HiRadMat facility in October 2022 to understand thermal shock response of conventional materials and novel support design operation future multi-MW accelerator beam windows secondary particle-production targets. This experiment, organized within framework RaDIATE collaboration, builds on previous HRMT-43 (BeGrid2) where a variety both non-irradiated previously proton-irradiated conditions were tested. The primary goal failure mechanisms, limits...
<title>Abstract</title> The material properties of asteroid samples exhibit a dynamic response under high-energy irradiation, which no experiments have yet been able to cover. However, studying the is relevant in several fields. For instance, proposed deflection techniques, all require behavior object be known very precisely model orbits accurately and predict transfer kinetic energy. In our experimental campaign at CERN's HiRadMat facility, we have, for first time, irradiated an...
Abstract In 2017, a proton-impact test on HL-LHC collimator materials was carried out in the HiRadMat facility at CERN. The experiment, called “ MultiMat ”, enabled testing of uncoated and coated material composites alloys, most cases developed CERN, for different beam collimation functionalities. Manufacturing these then passed to industry, leading series production use collimators installed LHC during Long Shutdown 2 (LS2). industrial versions bulk coating were tested 2021 MultiMat-2 ”...
Abstract The AMBER-experiment [2, 1], located in the North Experimental Area at CERN, is successor of NA58/COMPASS [11] experiment which ran from 2002-2022. AMBER will start its data taking 2023. served by M2 beamline, employing secondary and tertiary beams produced 400 GeV c -1 protons CERN Super Proton Synchrotron (SPS) impacting T6 target. For second phase their measurements, require high-intensity kaon [6, 7]. This requirement for implies a need accurate particle identification allowing...
Various graphite targets with a tantalum core were exposed to 440 GeV pulsed proton beams at the HiRadMat facility CERN. The dynamic response was investigated by monitoring surface velocity of samples laser Doppler vibrometry. study comprises different grades, such as polycrystalline, expanded and carbon-fiber reinforced graphite, low-density graphitic foams, all candidates for beam-intercepting devices in high-power accelerators. purpose is concentrate large energy deposition this...
Indium doped zinc oxide, ZnO(In), is a promising scintillation material for nanosecond-fast beam monitoring and counting heavy ions of MeV energy above. We investigated the ionoluminescence UV/Vis light transmission spectra that occur in ZnO(In) ceramic exposed to 4.8 MeV/u 48Ca 197Au up 5×1012 2×1011ions/cm2, respectively. Ionoluminescence were measured online as function fluence. characterized by an intensive single emission band at 387 nm due near-band-edge emission. observed loss...
Targets of isotropic graphite and hexagonal boron nitride were exposed to short pulses uranium ions with ∼1 GeV kinetic energy. The deposited power density ∼3 MW/cm³ generates thermal stress in the samples leading pressure waves. velocity respective motion target surface was measured by laser Doppler vibrometry. bending modes are identified as dominant components signal recorded a function time. With accumulated radiation damage, mode frequency shifts towards higher values. Based on this...
Relativistic electron-positron plasmas are ubiquitous in extreme astrophysical environments such as black holes and neutron star magnetospheres, where accretion-powered jets pulsar winds expected to be enriched with pair plasmas. Their behaviour is quite different from typical electron-ion due the matter-antimatter symmetry of charged components their role dynamics compact objects believed fundamental. So far, our experimental inability produce large yields positrons quasi-neutral beams has...