Moreno Stagi

Istituto Nazionale di Fisica Nucleare, Galileo Galilei Institute for Theoretical Physics

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Peter Coppo

Istituto Nazionale di Fisica Nucleare, Galileo Galilei Institute for Theoretical Physics

A. Diligenti

University of Pisa

Carmine Mastrandrea

SELEX Sistemi Integrati

V. Ciuti

University of Pisa

Leonardo Tommasi

Istituto Nazionale di Fisica Nucleare, Galileo Galilei Institute for Theoretical Physics

Luciano Calamai

Istituto Nazionale di Fisica Nucleare, Galileo Galilei Institute for Theoretical Physics

Jens Nieke

European Space Research and Technology Centre

Andrea Romoli

Istituto Nazionale di Fisica Nucleare, Galileo Galilei Institute for Theoretical Physics

Emanuela de Luca

Istituto Nazionale di Fisica Nucleare, Galileo Galilei Institute for Theoretical Physics

Stefano Pieraccini

Istituto Nazionale di Fisica Nucleare, Sezione di Pisa

Cooperative Institutions

Istituto Nazionale di Fisica Nucleare, Galileo Galilei Institute for Theoretical Physics

European Space Research and Technology Centre

SELEX Sistemi Integrati

University of Pisa

Space (Italy)

University of Florence

Leonardo (Italy)

European Space Agency

Agenzia Spaziale Italiana

Leonardo (United Kingdom)

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Energy barrier height variations of Pd—Si Schottky diodes induced by deuterium

IEEE Electron Device Letters (1983)

A. Diligenti Moreno Stagi V. Ciuti Marco Schiaffino

The depletion layer capacitance of palladium-silicon contacts at 0 V bias has been measured as a function of time during the exposure to the deuterium. The capacitance transient, from which the barrier height behavior can be readily deduced, has been compared with the transient obtained exposing the same diodes to the hydrogen. It has been found that the barrier height variation induced by the deuterium occurs in a time interval which is at least an order of magnitude shorter than the hydrogen induced one.

Depletion region

Transient (computer programming)

10.1109/edl.1983.25653

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Citations (2)

Design and Performance of the Lightning Imager for the Meteosat Third Generation

ESASP (2006)

Leonardo Tommasi Giammodesto Basile Andrea Romoli Moreno Stagi

In the frame of the MTG Pre-Phase A study, feasibility of an instrument to fulfill the goals of the Lightning Imagery Mission has been investigated. Architecture is based on a set of four optical heads, each dedicated to observation of a fraction of the Earth disk and including a telescope, a narrow band filter, a detector and its proximity electronics. In particular, detector is characterized by a novel pixel architecture that provides autonomous lightning identification and readout of the flash data with a very high rate, reducing throughput at a minimum. This allows the instrument to fulfill mission objectives in terms of spatial and temporal resolution, with the lowest mass and power allocation. Details on instrument concept, design and budgets, as well as performance evaluation for different operative scenarios (day/night) are provided.

Lightning

Frame rate

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Proton-induced degradation of charge transfer efficiency on FLEX CCD detectors: measurement and impact on instrument performances

International Conference on Space Optics — ICSO 2020 (2021)

François Bernard Matej Arko Thibaut Prod’homme Frédéric Lemmel Toncho Ivanov

The exposure of Charge-Coupled Devices (CCD) to high-energy particles in space leads to a degradation of their performances. One of the observed mechanisms is the creation of defects in the CCD silicon lattice by displacement damage, inducing a reduction of the Charge Transfer Efficiency (CTE), i.e. the ability of the device to efficiently transfer the photo-induced charge to the read-out output node. Hence a reduction of the imaging quality of the detector. We present here a comparison of the modelled and measured optical quality of the FLEX CCD exposed to a high energy proton flux. The optical quality was directly measured on an irradiated flight representative device. A physical model of the detector, including an accurate modelling of the charge trapping dynamic, is used to generate synthetic scenes affected by CTE degradation from which the optical quality is assessed and compared to the measurement. Eventually the correlation of the model and the measurement will allow to accurately assess the performances of a detector exposed to space radiation environment.

Degradation

Charge-coupled device

10.1117/12.2599957

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Sea and Land Surface Temperature Radiometer detection assembly design and performance

Journal of Applied Remote Sensing (2014)

Peter Coppo Carmine Mastrandrea Moreno Stagi Luciano Calamai Jens Nieke

The Sea and Land Surface Temperature Radiometers (SLSTRs) are high-accuracy radiometers selected for the Copernicus mission Sentinel-3 space component to provide sea surface temperature (SST) data continuity with respect to previous (Advanced) Along Track Scanning Radiometers [(A)ATSRs] for climatology. Many satellites are foreseen over a 20-year period, each with a 7.5-year lifetime. Sentinel-3A will be launched in 2015 and Sentinel-3B at least six months later, implying that two identical satellites will be maintained in the same orbit with a 180-deg phase delay. Each SLSTR has an improved design with respect to AATSR affording wider near-nadir and oblique view swaths (1400 and 740 km) for SST/land surface temperature global coverage at a 1-km spatial resolution (at SSP) with a daily revisit time (with two satellites), appropriate for both climate and meteorology. Cloud screening and other products are obtained with 0.5 km spatial resolution [at sub-satellite point (SSP)] in visible and short wave infrared (SWIR) bands, while two additional channels are included to monitor high temperature events such as forest fires. The two swaths are obtained with two conical scans and telescopes combined optically at a common focus, representing the input of a cooled focal plane assembly, where nine channels are separated with dichroic and are focalized on detectors with appropriate optical relays. IR and SWIR optics/detectors are cooled to 85 K by an active mechanical cryo-cooler with vibration compensation, while the VIS ones are maintained at a stable temperature. The opto-mechanical design and the expected electro-optical performance of the focal plane assembly are described and the model predictions at system level are compared with experimental data acquired in the vacuum chamber in flight representative thermal conditions or in the laboratory.

Nadir

Radiometry

10.1117/1.jrs.8.084979

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Citations (18)

PdSi Schottky diodes as hydrogen sensing devices: Capacitance-voltage characteristics

Solid State Communications (1983)

A. Diligenti Moreno Stagi V. Ciuti

10.1016/0038-1098(83)90893-1

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Citations (29)

The sea and land surface temperature radiometer (SLSTR) detection assembly design and performance

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2013)

Peter Coppo Carmine Mastrandrea Moreno Stagi Luciano Calamai Marco Barilli

The SLSTRs are high accuracy radiometers selected for the GMES mission Sentinel-3 space component to provide SST data continuity respect to previous (A)ATSRs for climatology. Many satellites, each with 7.5-year lifetime, over a 20- year period are foreseen. Sentinel-3A will be launched in 2014 and Sentinel-3B at least 6 months later implying that two identical satellites will be maintained in the same orbit with 180° phase delay. Each SLSTR has an improved design respect to AATSR affording large near nadir and oblique view swaths (1400 and 740 km) for SST/LST global coverage at 1 km spatial resolution with a daily revisit time (with two satellites), appropriate for climate and meteorology. Clouds screening and other products are obtained with 0.5 Km spatial resolution in visible and SWIR bands while two additional channels are included to monitor high temperature events, such as forest fires. The two swaths are obtained with two conical scans and telescopes combined optically at a common focus, representing the input of a cooled Focal Plane Assembly, where nine channels are separated with dichroic and focalized on detectors with appropriate optical relays. IR and SWIR optics/detectors are cooled to 85 K by an active mechanical cryo-cooler with vibration compensation, while the VIS ones are maintained at a stable temperature. The opto-mechanical design and the expected electro-optical performance of the Focal Plane Assembly are described and the models predictions at system level are compared with experimental data acquired in the vacuum chamber in flight representative thermal conditions or in laboratory.

Nadir

Radiometry

Dichroic glass

Earth observation

10.1117/12.2029432

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Citations (18)

Integrated focal plane star sensor

G. Borghi M. Carboncini Moreno Stagi

Star (game theory)

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Design and performance of the lightning imager for the Meteosat third generation

International Conference on Space Optics — ICSO 2020 (2017)

Leonardo Tommasi Giuseppe Basile Andrea Romoli Moreno Stagi

Lightning

Frame rate

10.1117/12.2308053

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Citations (1)

Development And Test Of An Integrated Focal Plane Star Sensor For Cryogenic Environment Operation

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (1987)

A. Buccheri G. Borghi Moreno Stagi Bruno Tiribilli

An integrated focal plane star sensor based on a four-quadrant detector was designed and developed for operation from ambient down to cryogenic temperature. One of the first applications of this system will be the fine pointing of the Infrared Space Observer (ISO) telescope, therefore the performance was optimized for operations around 2K. The sensor is constituted of a small sensitive head, operating at cryogenic temperature with very low power consumption, and of a processing electronics working in the typical temperature range for space electronics. A breadboard was reliazed and successfully tested both at ambient temperature (with reduced accuracy) and at 20K. The accuracy referred to the ISO optical system, was measured to be better than 1 arcsec.

Breadboard

Cryogenics

Operating temperature

Space environment

10.1117/12.941527

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Rad-hard ASIC for photodetector signal processing

ESASP (2002)

F. Brandani S. Puccini Moreno Stagi Stefano Chicca

Application-specific integrated circuit

SIGNAL (programming language)

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