Nicolas De Angelis
A5080651704- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Gamma-ray bursts and supernovae
- Astrophysics and Cosmic Phenomena
- Spacecraft Design and Technology
- Nuclear Physics and Applications
- CCD and CMOS Imaging Sensors
- Solar and Space Plasma Dynamics
- Radiation Therapy and Dosimetry
- Astro and Planetary Science
- Astrophysical Phenomena and Observations
- Geophysics and Gravity Measurements
- Pulsars and Gravitational Waves Research
- Radio Astronomy Observations and Technology
- Medical Imaging Techniques and Applications
- Infrared Target Detection Methodologies
- Spacecraft and Cryogenic Technologies
- Distributed and Parallel Computing Systems
- Microwave Imaging and Scattering Analysis
- X-ray Spectroscopy and Fluorescence Analysis
- Geological and Geophysical Studies
- Calibration and Measurement Techniques
- Radioactive Decay and Measurement Techniques
- Energy Harvesting in Wireless Networks
- Advanced Data Storage Technologies
University of Geneva
2019-2024
Institute for Space Astrophysics and Planetology
2024
National Institute for Astrophysics
2024
National Centre for Nuclear Research
2022-2023
Chinese Academy of Sciences
2023
Max Planck Institute for Extraterrestrial Physics
2023
NCCR Chemical Biology - Visualisation and Control of Biological Processes Using Chemistry
2022
Authorised Association Consortium
2019
Palacký University Olomouc
2019
Czech Academy of Sciences, Institute of Physics
2019
Despite over 50 years of research, many open questions remain about the origin and nature GRBs. Polarization measurements prompt emission these extreme phenomena have long been thought to be key answering a range questions. The POLAR detector was designed produce first set detailed reliable polarization in an energy approximately 50-500 keV. During late 2016 early 2017, detected total 55 Analysis results 5 GRBs reported past. were found consistent with low or unpolarized flux. However,...
Since their first discovery in the late 1960s, gamma-ray bursts have attracted an exponentially growing interest from international community due to central role most highly debated open questions of modern research astronomy, astrophysics, cosmology, and fundamental physics. These range intimate nuclear composition high-density material within core ultra-dense neuron stars, stellar evolution via collapse massive production propagation gravitational waves, as well exploration early universe...
The advent of both multi-messenger and time-domain astrophysics over the last decade has seen a large interest in development small-scale, cheap, robust gamma-ray detectors. This been further encouraged by availability CubeSat platforms. Of particular are detectors capable producing spectral localization measurements X transients to allow for accurate follow-up at different wavelengths. A vast number instruments developed such purposes years use combination scintillators Silicon...
Abstract The combination of plastic scintillators with Silicon Photo-Multipliers (SiPMs) is widely used for detecting radiation in high-energy astrophysics, particle physics, neutrino or medical physics. An example application this kind detectors are Compton polarimeters such as POLAR-2 [1,2,3] LEAP [4,5,6] which a low-Z material needed the effect to be dominant down low energy possible. Such aim measure depositions organic produce small amounts optical light because deposited and...
Despite several decades of multi-wavelength and multi-messenger spectral observations, Gamma-Ray Bursts (GRBs) remain one the big mysteries modern astrophysics. Polarization measurements are essential to gain a more clear complete picture emission processes at work in these extremely powerful transient events. In this regard, first generation dedicated gamma-ray polarimeters, POLAR GAP, were launched into space last decade. After 6 months operation, mission detected 55 GRBs, among which 14...
Abstract POLAR-2 is a dedicated gamma-ray polarimeter currently foreseen to be launched towards the China Space Station around 2027. The design of detector based on legacy its predecessor mission POLAR which was in 2016. aims measure polarization Gamma-ray Burst prompt emission within 30–800 keV energy range. Thanks high sensitivity polarization, as well large effective area, will provide most precise measurements this type date. Such are key improve our understanding astrophysical processes...
The High Energy Modular Array (HEMA) is one of three instruments that compose the STROBE-X mission concept. HEMA a large-area, high-throughput non-imaging pointed instrument based on Large Area Detector developed as part LOFT It designed for spectral timing measurements broad range sources and provides transformative increase in sensitivity to X-rays energy 2--30 keV compared previous instruments, with an effective area 3.4 m$^{2}$ at 8.5 resolution better than 300 eV 6 its nominal field regard.
The POLAR-2 Gamma-Ray Burst (GRB) Polarimetry mission is a follow-up to the successful POLAR mission. collected six months of data in 2016-2017 on board Tiangong-2 Chinese Space laboratory. From polarization study 14 GRBs, measured an overall low and hint for unexpected complexity time evolution during GRBs. Energy-dependent measurements GRB will be presented by N. de Angelis GA21-09 (August 2nd). These results demonstrate need with significantly improved accuracy. Moreover, recent discovery...
The X/$\gamma$ ray polarimetry of the Crab pulsar/nebula is believed to hold crucial information on their emission models. In past, several missions have shown evidence polarized from Crab. significance these measurements remains however limited. New are therefore required. POLAR a wide Field View Compton-scattering polarimeter (sensitive in 50-500 keV) onboard Chinese spacelab Tiangong-2 which took data September 2016 April 2017. Although not designed perform polarization pulsars, we...
The Large Area Detector (LAD) is the high-throughput, spectral-timing instrument onboard eXTP mission, a flagship mission of Chinese Academy Sciences and China National Space Administration, with large European participation coordinated by Italy Spain. currently performing its phase B study, target launch at end-2027. scientific payload includes four instruments (SFA, PFA, LAD WFM) offering unprecedented simultaneous wide-band X-ray timing polarimetry sensitivity. based on design originally...
The CUbesat Solar Polarimeter (CUSP) project is a future CubeSat mission orbiting the Earth aimed to measure linear polarization of solar flares in hard X-ray band, by means Compton scattering polarimeter. CUSP will allow us study magnetic reconnection and particle acceleration flaring structures our star. framework Italian Space Agency Alcor Program, which aims develop new missions. approved for Phase B that last 12 months, starting mid-2024. We report on current status as outcome A.
The development and calibration of a measurement system designed for assessing the performance avalanche photodiodes (APDs) used in Compton scattering polarimeter CUSP project is discussed this work. able to characterize APD gain GAPD energy resolution across wide range temperatures T (from −20 °C +60 °C) bias voltages Vbias 260 V 410 V). primary goal was experimentally determine dependence on order establish strategy stabilizing by compensating fluctuations, acting Vbias. results...
The SST-1M project, run by a Consortium of institutes from Czech Republic, Poland and Switzerland, has been proposed as solution for implementing the small-size telescope array southern site Cherenkov Telescope Array. technology is pathfinder efficient production cost-effective imaging air telescopes. We report on main system features recent upgrades, performances validation operation campaign carried out in 2018.
The SST-1M is a 4-m diameter mirror Davies-Cotton gamma-ray telescope. It has been designed to cover the energy range above 500 GeV and be part of an array telescopes separated by 150-200 m. Its innovative camera featuring large area hexagonal silicon photo-multipliers as photon detectors fully digital trigger readout system. Here, strategy methods for its calibration are presented, together with obtained results. In particular, off on-site strategies demonstrated on first prototype....
The last decade has increasingly seen the use of silicon photomultipliers (SiPMs) instead photomultiplier tubes (PMTs). This is due to various advantages former on latter like its smaller size, lower operating voltage, higher detection efficiency, insensitivity magnetic fields and mechanical robustness launch vibrations. All these features make SiPMs ideal for space based experiments where detectors require be compact, lightweight capable surviving conditions. A downside with this novel type...
The enhanced x-ray timing and polarimetry (eXTP) mission is a large innovative observatory in the field of astronomy, designed to study properties matter under extreme conditions density, gravity, magnetic fields. It developed by an international consortium led Institute High Energy Physics (IHEP) Chinese Academy Sciences (CAS) currently completing phase-B with launch foreseen 2027. Two four instruments onboard eXTP will be provided European consortium: area detector (LAD) wide monitor...
Abstract POLAR-2 is a space-borne polarimeter, built to investigate the polarization of Gamma-Ray Bursts and help elucidate their mechanisms. The instrument targeted for launch in 2024 or 2025 aboard China Space Station being developed by collaboration between institutes from Switzerland, Germany, Poland China. will orbit at an altitude approximately 300 km with inclination 42o be subjected background radiation cosmic rays solar events. It therefore pertinent better understand performance...
POLAR-2 is a space-borne polarimeter, built to investigate the polarization of Gamma-Ray Bursts and help elucidate their mechanisms. The instrument targeted for launch in 2024 or 2025 aboard China Space Station being developed by collaboration between institutes from Switzerland, Germany, Poland China. will orbit at altitudes 340km 450km with an inclination 42∘ be subjected background radiation cosmic rays solar events. It therefore pertinent better understand performance sensitive devices...
Since their first discovery in the late 1960s, Gamma-ray bursts have attracted an exponentially growing interest from international community due to central role most highly debated open questions of modern research astronomy, astrophysics, cosmology, and fundamental physics. These range intimate nuclear composition high density material within core ultra-dense neuron stars, stellar evolution via collapse massive production propagation gravitational waves, as well exploration early Universe...
POLAR-2 is a dedicated gamma-ray polarimeter currently foreseen to be launched towards the China Space Station around 2027. The design of detector based on legacy its predecessor mission POLAR which was in 2016. aims measure polarization Gamma-ray Burst prompt emission within 30-800 keV energy range. Thanks high sensitivity polarization, as well large effective area, will provide most precise measurements this type date. Such are key improve our understanding astrophysical processes...