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View article: LISA test-mass charging
LISA test-mass charging Open
Context . The Laser Interferometer Space Antenna (LISA) will probe the subhertz spectrum of gravitational-wave emission from the Universe. The space environment causes charge accumulation on its free-falling test masses (TMs) through galac…
View article: In-flight radiometric calibration of the Metis UV H I Ly-<i>α</i> channel and comparison with UVCS data
In-flight radiometric calibration of the Metis UV H I Ly-<i>α</i> channel and comparison with UVCS data Open
Context. We present the results of the in-flight radiometric calibration performed for the ultraviolet (UV) H I Ly- α channel of the Metis coronagraph on board Solar Orbiter. Aims. The radiometric calibration is a fundamental procedure req…
View article: Hydrogenated Amorphous Silicon Charge-Selective Contact Devices on a Polyimide Flexible Substrate for Dosimetry and Beam Flux Measurements
Hydrogenated Amorphous Silicon Charge-Selective Contact Devices on a Polyimide Flexible Substrate for Dosimetry and Beam Flux Measurements Open
Hydrogenated amorphous silicon (a-Si:H) devices on flexible substrates are currently being studied for application in dosimetry and beam flux measurements. The necessity of in vivo dosimetry requires thin devices with maximal transparency …
View article: Proton irradiation on Hydrogenated Amorphous Silicon flexible devices
Proton irradiation on Hydrogenated Amorphous Silicon flexible devices Open
Radiation damage tests in hydrogenated amorphous silicon (a-Si:H) flexible flux and dose-measuring devices have been performed with a 3 MeV proton beam, to evaluate combined displacement and total ionizing dose damage. The tested devices h…
View article: LISA test-mass charging. Particle flux modeling, Monte Carlo simulations and induced effects on the sensitivity of the observatory
LISA test-mass charging. Particle flux modeling, Monte Carlo simulations and induced effects on the sensitivity of the observatory Open
Context. The LISA space observatory will explore the sub-Hz spectrum of gravitational wave emission from the Universe. The space environment, where will be immersed in, is responsible for charge accumulation on its free falling test masses…
View article: deadtrees.earth - An Open-Access and Interactive Database for Centimeter-Scale Aerial Imagery to Uncover Global Tree Mortality Dynamics
deadtrees.earth - An Open-Access and Interactive Database for Centimeter-Scale Aerial Imagery to Uncover Global Tree Mortality Dynamics Open
Excessive tree mortality is a global concern and remains poorly understood as it is a complex phenomenon. We lack global and temporally continuous coverage on tree mortality data. Ground-based observations on tree mortality, e.g ., derived…
View article: Metis Observation of the Onset of Fully Developed Turbulence in the Solar Corona
Metis Observation of the Onset of Fully Developed Turbulence in the Solar Corona Open
This Letter reports the first observation of the onset of fully developed turbulence in the solar corona. Long time series of white-light coronal images, acquired by Metis aboard Solar Orbiter at 2 minutes cadence and spanning about 10 hr,…
View article: Mobility Gaps of Hydrogenated Amorphous Silicon Related to Hydrogen Concentration and Its Influence on Electrical Performance
Mobility Gaps of Hydrogenated Amorphous Silicon Related to Hydrogen Concentration and Its Influence on Electrical Performance Open
This paper presents a comprehensive study of hydrogenated amorphous silicon (a-Si)-based detectors, utilizing electrical characterization, Raman spectroscopy, photoemission, and inverse photoemission techniques. The unique properties of a-…
View article: Dosimetry of microbeam radiotherapy by flexible hydrogenated amorphous silicon detectors
Dosimetry of microbeam radiotherapy by flexible hydrogenated amorphous silicon detectors Open
Objective. Detectors that can provide accurate dosimetry for microbeam radiation therapy (MRT) must possess intrinsic radiation hardness, a high dynamic range, and a micron-scale spatial resolution. In this work we characterize hydrogenate…
View article: Monte Carlo simulations and machine learningmodels for cosmic-ray short-term variations andtest-mass charging on board LISA
Monte Carlo simulations and machine learningmodels for cosmic-ray short-term variations andtest-mass charging on board LISA Open
Energetic particles of galactic and solar origin charge the metal free-falling testmasses (TMs) of the interferometers for gravitational wave detection in space.The deposited charge couples with stray electric fields thus generating spuri-…
View article: Study of quantum electron diffraction for the LISA test-mass charging
Study of quantum electron diffraction for the LISA test-mass charging Open
The future Laser Interferometer Space Antenna (LISA) for gravitational wave detection in space and the precursor LISA Pathfinder missions rely on metal test masses (TMs) playing the role of free-falling geodesic-reference and interferomete…
View article: LISA and LISA-like mission test-mass charging for gamma-ray burst detection
LISA and LISA-like mission test-mass charging for gamma-ray burst detection Open
Cubic gold-platinum test-masses (TMs) play the role of free-falling geodesic reference and interferometer end mirrors of the future Laser Interferometer Space Antenna (LISA) observatory for low-frequency gravitational wave detection in spa…
View article: Observation of solar energetic particles with Metis on board Solar Orbiter on February 25, 2023
Observation of solar energetic particles with Metis on board Solar Orbiter on February 25, 2023 Open
Context. The Solar Orbiter Metis coronagraph captures images of the solar corona in both visible (VL) and ultraviolet (UV) light. Tracks ascribable to the passage of galactic and solar particles appear in the Metis images. An algorithm imp…
View article: Characterization of a flexible a‐Si:H detector for in vivo dosimetry in therapeutic x‐ray beams
Characterization of a flexible a‐Si:H detector for in vivo dosimetry in therapeutic x‐ray beams Open
Background The increasing use of complex and high dose‐rate treatments in radiation therapy necessitates advanced detectors to provide accurate dosimetry. Rather than relying on pre‐treatment quality assurance (QA) measurements alone, many…
View article: Characterization of Hydrogenated Amorphous Silicon Sensors on Polyimide Flexible Substrate
Characterization of Hydrogenated Amorphous Silicon Sensors on Polyimide Flexible Substrate Open
Hydrogenated amorphous silicon (a-Si:H) is a material having an intrinsically high radiation hardness that can be deposited on flexible substrates like Polyimide. For these properties a-Si:H can be used for the production of flexible senso…
View article: TCAD modelling of a-Si:H devices for particle detection applications
TCAD modelling of a-Si:H devices for particle detection applications Open
View article: Coronal Heating Rate in the Slow Solar Wind
Coronal Heating Rate in the Slow Solar Wind Open
This Letter reports the first observational estimate of the heating rate in the slowly expanding solar corona. The analysis exploits the simultaneous remote and local observations of the same coronal plasma volume, with the Solar Orbiter/M…
View article: A hydrogenated amorphous silicon detector for Space Weather applications
A hydrogenated amorphous silicon detector for Space Weather applications Open
The characteristics of a hydrogenated amorphous silicon (a-Si:H) detector are presented here for monitoring in space solar flares and the evolution of strong to extreme energetic proton events. The importance and the feasibility to extend …
View article: Particle monitoring capability of the Solar Orbiter Metis coronagraph through the increasing phase of solar cycle 25
Particle monitoring capability of the Solar Orbiter Metis coronagraph through the increasing phase of solar cycle 25 Open
Context. Galactic cosmic rays (GCRs) and solar particles with energies greater than tens of MeV penetrate spacecraft and instruments hosted aboard space missions. The Solar Orbiter Metis coronagraph is aimed at observing the solar corona i…
View article: Particle monitoring capability of the Solar Orbiter Metis coronagraph through the increasing phase of solar cycle 25
Particle monitoring capability of the Solar Orbiter Metis coronagraph through the increasing phase of solar cycle 25 Open
Context. Galactic cosmic rays (GCRs) and solar particles with energies greater than tens of MeV penetrate spacecraft and instruments hosted aboard space missions. The Solar Orbiter Metis coronagraph is aimed at observing the solar corona i…
View article: Coronal Heating Rate in the Slow Solar Wind
Coronal Heating Rate in the Slow Solar Wind Open
This Letter reports the first observational estimate of the heating rate in the slowly expanding solar corona. The analysis exploits the simultaneous remote and local observations of the same coronal plasma volume with the Solar Orbiter/Me…
View article: In-flight radiometric calibration of the Metis Visible Light channel using stars and comparison with STEREO-A/COR2 data
In-flight radiometric calibration of the Metis Visible Light channel using stars and comparison with STEREO-A/COR2 data Open
Context. We present the results for the in-flight radiometric calibration performed for the Visible Light (VL) channel of the Metis coronagraph on board Solar Orbiter. Aims. The radiometric calibration is a fundamental step in building the…
View article: Hydrogenated amorphous silicon high flux x-ray detectors for synchrotron microbeam radiation therapy
Hydrogenated amorphous silicon high flux x-ray detectors for synchrotron microbeam radiation therapy Open
Objective . Microbeam radiation therapy (MRT) is an alternative emerging radiotherapy treatment modality which has demonstrated effective radioresistant tumour control while sparing surrounding healthy tissue in preclinical trials. This ap…
View article: In-flight validation of the Metis visible-light polarimeter coronagraph on board Solar Orbiter
In-flight validation of the Metis visible-light polarimeter coronagraph on board Solar Orbiter Open
Context. The Metis coronagraph is one of the remote sensing instruments of the ESA-NASA Solar Orbiter mission. The goal for the instrument is to enable the study of the solar atmosphere and solar wind by simultaneously acquiring images of …
View article: The role of low-energy electrons in the charging process of LISA test masses
The role of low-energy electrons in the charging process of LISA test masses Open
The estimate of the total electron yield is fundamental for our understanding of the test-mass charging associated with cosmic rays in the Laser Interferometer Space Antenna (LISA) Pathfinder mission and in the forthcoming gravitational wa…
View article: A Hydrogenated amorphous silicon detector for Space Weather Applications
A Hydrogenated amorphous silicon detector for Space Weather Applications Open
The characteristics of a hydrogenated amorphous silicon (a-Si:H) detector are presented here for monitoring in space solar flares and the evolution of large energetic proton events up to hundreds of MeV. The a-Si:H presents an excellent ra…
View article: A Hydrogenated amorphous silicon detector for Space Weather Applications
A Hydrogenated amorphous silicon detector for Space Weather Applications Open
The characteristics of a hydrogenated amorphous silicon (a-Si:H) detector are presented here for monitoring in space solar flares and the evolution of large energetic proton events up to hundreds of MeV. The a-Si:H presents an excellent ra…
View article: The role of low-energy electrons in the charging process of LISA test masses
The role of low-energy electrons in the charging process of LISA test masses Open
The space environment encountered by operating spacecraft is populated by a continuous flux of charged particles that penetrate into electronic devices inducing phantom commands and loss of control, eventually leading to satellite failure.…
View article: Observation of a Magnetic Switchback in the Solar Corona
Observation of a Magnetic Switchback in the Solar Corona Open
Switchbacks are sudden, large radial deflections of the solar wind magnetic field, widely revealed in interplanetary space by the Parker Solar Probe. The switchbacks’ formation mechanism and sources are still unresolved, although candidate…
View article: Bridging the gap between Monte Carlo simulations and measurements of the LISA Pathfinder test-mass charging for LISA
Bridging the gap between Monte Carlo simulations and measurements of the LISA Pathfinder test-mass charging for LISA Open
Context. Cubic gold-platinum free-falling test masses (TMs) constitute the mirrors of future LISA and LISA-like interferometers for low-frequency gravitational wave detection in space. High-energy particles of Galactic and solar origin cha…