Giuseppe Di Persio
A5035432191- Particle Detector Development and Performance
- Astrophysical Phenomena and Observations
- Calibration and Measurement Techniques
- Astrophysics and Cosmic Phenomena
- Gamma-ray bursts and supernovae
- Radiation Detection and Scintillator Technologies
- Spacecraft Design and Technology
- CCD and CMOS Imaging Sensors
- Nuclear Physics and Applications
- Solar and Space Plasma Dynamics
- Pulsars and Gravitational Waves Research
- Astronomical Observations and Instrumentation
- Planetary Science and Exploration
- Astro and Planetary Science
- Particle Accelerators and Free-Electron Lasers
- Geophysics and Gravity Measurements
- Distributed and Parallel Computing Systems
- X-ray Spectroscopy and Fluorescence Analysis
- Parallel Computing and Optimization Techniques
- Infrared Target Detection Methodologies
- Advanced X-ray and CT Imaging
- Radiation Effects in Electronics
- Geomagnetism and Paleomagnetism Studies
- Particle accelerators and beam dynamics
- Medical Imaging Techniques and Applications
Institute for Space Astrophysics and Planetology
2016-2024
National Institute for Astrophysics
2008-2024
Istituto Nazionale di Fisica Nucleare, Sezione di Torino
2021
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2006
Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano
1992-2004
Launched on 2021 December 9, the Imaging X-ray Polarimetry Explorer (IXPE) is a NASA Small Mission in collaboration with Italian Space Agency (ASI). The mission will open new window of investigation—imaging x-ray polarimetry. observatory features three identical telescopes, each consisting mirror module assembly polarization-sensitive imaging detector at focus. A coilable boom, deployed orbit, provides necessary 4-m focal length. utilizes three-axis-stabilized spacecraft, which services such...
While X-ray Spectroscopy, Timing and Imaging have improved verymuch since 1962, when the first astronomical non-solar source was discovered, especially with launch of Newton/X-ray Multi-Mirror Mission, Rossi/X-ray Explorer Chandra/Advanced Astrophysics Facility, progress polarimetry has been meager. This is in part due to lack sensitive polarization detectors, fate approved missions because celestial sources appeared less polarized than expected. Only one positive measurement available until...
Due to be launched in late 2021, the Imaging X-Ray Polarimetry Explorer (IXPE) is a NASA Small mission designed perform polarization measurements 2-8 keV band, complemented with imaging, spectroscopy and timing capabilities. At heart of focal plane set three polarization-sensitive Gas Pixel Detectors (GPD), each based on custom ASIC acting as charge-collecting anode. In this paper we shall review design, manufacturing, test IXPE focal-plane detectors, particular emphasis connection between...
The NASA/ASI Imaging X-ray Polarimetry Explorer, which will be launched in 2021, the first instrument to perform spatially resolved polarimetry on several astronomical sources 2-8 keV energy band. These measurements are made possible owing use of a gas pixel detector (GPD) at focus three telescopes. GPD allows simultaneous interaction point, energy, arrival time, and polarization angle detected photons. increase sensitivity, achieved 40 years ago, for imaging spectroscopy with Einstein...
We report on the development of a new higly efficient polarimeter, based photoelectric effect in gas, for 2-10 keV energy range, particularly interesting band x-ray astronomy. derive polarization information by reconstructing direction photoelectron emission with pixel gas detector. Attention is focused algorithms used data analysis order to maximize sensitivity instrument. Monte Carlo simulation also discussed details.
Scheduled to launch in late 2021, the Imaging X-ray Polarimetry Explorer (IXPE) is a NASA Small Mission collaboration with Italian Space Agency (ASI). The mission will open new window of investigation - imaging polarimetry. observatory features 3 identical telescopes each consisting mirror module assembly polarization-sensitive detector at focus. A coilable boom, deployed on orbit, provides necessary 4-m focal length. utilizes 3-axis-stabilized spacecraft which services such as power,...
IXPE (Imaging X-ray Polarimetry Explorer) is a NASA Small Explorer mission -- in partnership with the Italian Space Agency (ASI) dedicated to polarimetry 2--8 keV energy band. The telescope comprises three grazing incidence mirror modules coupled detector units hosting each one Gas Pixel Detector (GPD), gas that allows measuring polarization degree by using photoelectric effect. A wide and accurate ground calibration was carried out on Units (DUs) at INAF-IAPS, Italy, where facility set-up...
Pulsar Wind Nebula wind nebulae are the result of interaction between relativistic charged particles emitted by pulsars and their surrounding interstellar medium. Using AGILE satellite, Pellizzoni et al. (p. 663 , published online 31 December) detected extended gamma-ray emission 100 megaelectron volts 3 gigaelectron from 10,000-year-old Vela pulsar nebula. This detection sets constraints on particle pulsars, its energetic content, interactions with It also suggests that could form a subset...
The Imaging X-ray Polarimetry Explorer is a mission dedicated to the measurement of polarization from tens astrophysical sources belonging different classes. Expected be launched at end 2021, payload comprises three mirrors and focal plane imaging polarimeters, latter being designed built in Italy. While calibration always an essential phase development high-energy space missions, for IXPE it has been particularly extensive both calibrate response polarization, which peculiar IXPE, achieve...
The Mini-Calorimeter (MCAL) instrument on-board the AGILE satellite is a non-imaging gamma-ray scintillation detector sensitive in 300keV-100MeV energy range with total on-axis geometrical area of 1400cm^2. Gamma-Ray Bursts (GRBs) are one main scientific targets mission and MCAL design as an independent self-triggering makes it valuable all-sky monitor for GRBs. Furthermore very few operative instruments microsecond timing capabilities MeV range. In this paper results GRB detections after...
The Imaging X-ray Polarimetry Explorer (IXPE) will add polarization to the properties (time, energy, and position) observed in x-ray astronomy. A NASA Astrophysics Small (SMEX) partnership with Italian Space Agency (ASI), IXPE measure 2–8-keV of a few dozen sources during first 2 years following its 2021 launch. Observatory includes three identical telescopes, each comprising 4-m-focal-length (grazingincidence) mirror module assembly (MMA) polarization-sensitive (imaging) detector unit (DU),...
The Imaging X-ray Polarimetry Explorer (IXPE) will expand the information space for study of cosmic sources, by adding polarization to properties (time, energy, and position) observed in x-ray astronomy. Selected 2017 January as a NASA Astrophysics Small (SMEX) mission, IXPE be launched into an equatorial orbit 2021. observatory includes three identical telescopes, each comprising 4-m-focal-length (grazing-incidence) mirror module assembly (MMA) polarization-sensitive (imaging) detector unit...
FRB 180916 is a most intriguing source at 150 Mpc distance capable of producing repeating fast radio bursts with periodic 16.35 day temporal pattern. We report on the X-ray and $\gamma$-ray observations obtained by AGILE Swift. focused recurrent 5-day time intervals active bursting present results Feb. 3 - 8; 25; Mar. 5 10; 22 28, 2020 during multiwavelength campaign involving high-energy observations. also searched for coincidences millisecond timescales between all known MeV events...
A Micropattern detector in the focus of a grazing incidence telescope is nowadays most powerful tool to perform sensitive and reliable measurement linear polarization celestial X-ray sources. The actual implementation such completely new device results from trade-off various factors can provide break-through increase sensitivity with respect traditional instrumental approaches. depends on effective area optics modulation factor efficiency detector. latter strongly filling gas through...
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 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.
We report on a new instrument that brings high efficiency to x-ray polarimetry, which is the last unexplored field of astronomy. It derives polarization information from tracks photoelectrons imaged by finely subdivided gas pixel detector. The device can also do simultaneously good imaging, moderate spectroscopy and fast, rate timing down 150 eV. Moreover, being truly 2D, it non dispersive does not require rotation. great immprovement sensitivity will allow direct exploration most dramatic...
IXPE (Imaging X-ray Polarimetry Explorer) is a NASA SMEX in partnership with ASI. The focal plane Detector Units (DUs) and the Service Unit (DSU) were developed by Italian research Institutes INAF-IAPS INFN manufactured OHB-I. will investigate polarimetry 2-8 keV energy band. payload comprises three identical telescopes, each composed of mirror detector unit an polarimeter based on Gas Pixel (GPD). A stray-light collimator (SLC) mounted top DU to shield GPD from background X-rays not coming...
XEUS is a large area telescope aiming to rise X-ray Astronomy the level of Optical in terms collecting areas. It will be based on two satellites, locked formation flight, one with optics, focal plane. The present design plane foresees, as an auxiliary instrument, inclusion Polarimeter Micropattern Chamber. We show how such device capable solve open problems many classes High Energy Astrophysics objects and use sources laboratory for substantial progress Fundamental Physics.