Prof. Francesco Berrilli Profile

Prof. Francesco Berrilli

at Univ degli Studi di Roma Tor Vergata

SPIE Involvement:

Author

Area of Expertise:

Solar Astrophysics , Space Weather , Sun - Earth connection , Telescopes , Acquisition systems , Interferometers

Websites:

Personal Website | Company Website

Publications (20)

Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

IBIS2.0: The new Interferometric BIdimensional Spectrometer

Ilaria Ermolli, Roberto Cirami, Giorgio Calderone, Dario Del Moro, Paolo Romano, Giorgio Viavattene, Igor Coretti, Fabrizio Giorgi, Veronica Baldini, Paolo Di Marcantonio, Luca Giovannelli, Salvatore Luigi Guglielmino, Mariarita Murabito, Fernando Pedichini, Roberto Piazzesi, Matteo Aliverti, Edoardo Maria Alberto Redaelli, Francesco Berrilli, Francesca Zuccarello

Proceedings Volume 11447, 114470Z (2020) https://doi.org/10.1117/12.2576155

KEYWORDS: Spectroscopy, Interferometry, Temporal resolution, Telescopes, Solar telescopes, Solar processes, Optomechanical design, Control systems design

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

The multiple jet impingement heat rejecter prototype for the GREGOR Solar Telescope

Francesco Berrilli, Fabio Manni, Daniele Calchetti, Adalia Caroli, Dario Del Moro, Luca Giovannelli, Giovanni Mainella, Giorgio Viavattene, Arnaldo Florio

Proceedings Volume 11445, 114454X (2020) https://doi.org/10.1117/12.2562552

KEYWORDS: Control systems, Thermography, Liquids, Safety, Prototyping, Solar telescopes, Telescopes, Optical instrument design

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Heat rejecter (HR) is a critical component of large aperture solar telescopes. It has the double task of acting as a Field Stop, to select the solar region to be studied, and as a heat rejecter to reduce the thermal load in the subsequent optics and keep the temperature of all internal surfaces within a few degrees of the ambient temperature. This last request is necessary to avoid the onset of internal convective air plumes and the subsequent generation of internal seeing. Since the thermal flux at the primary focus of a 4-m class telescope, as the European Solar Telescope (EST), is expected to be of the order of several MW=m², even considering high HR reflectivity, the residual thermal load is conceivably high and a suitable Cooling Systems must be considered. Among the available cooling techniques, the most promising, and already applied in critical conditions such as for nuclear fusion reactor divertor, is the Multiple Jet Impingement (MJI) techniques. To fulfill the technological challenge of the HR for the next generation 4-m class European Solar Telescope (EST), a new prototype for the 1.5 meters GREGOR solar telescope has been developed as technological proof of concept. With the aim of testing this technique, a prototype of HR was realized to be mounted at the 1.5 meters GREGOR solar telescope at the at the Teide Observatory (Canary Islands, Spain). We present the HR thermal-hydraulic design based on the expected thermal load on the GREGOR primary focal plane (⋍ 1500W) and the constraints on the HR temperature. The MJI technology consists in a series of nozzles impinging the liquid coolant on the backside of the field stop hot wall. The high cooling capabilities of MJI relies on the high Reynolds numbers achievable, even with modest velocity flow. In this work we describe our efforts to design, fabricate and test the prototype of an HR to characterize the MJI technology. More in detail, we show the results of the hydraulic and thermal tests carried out in the opto-electronics laboratory of the Physics Department of the University of Rome Tor Vergata.

Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Tor Vergata Synoptic Solar Telescope: spectral characterization of potassium KI D1 MOFs

Daniele Calchetti, Giorgio Viavattene, Luciano Terranegra, Ermanno Pietropaolo, Maurizio Oliviero, Neil Murphy, Stuart Jefferies, Luca Giovannelli, Dario Del Moro, Francesco Berrilli

Proceedings Volume 11445, 114452T (2020) https://doi.org/10.1117/12.2562454

KEYWORDS: Telescopes, Solar processes, Solar telescopes, Micro optical fluidics, Doppler effect, Potassium, Magnetism, Sun, Optical filters, Absorption

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Proceedings Article | 27 July 2016 Paper

Paper

Analysis of the performances of 45 degrees tilted deformable mirrors for the EST MCAO

Marco Stangalini, Fernando Pedichini, Francesco Berrilli, Dario Del Moro, Ilaria Ermolli, Fabrizio Giorgi

Proceedings Volume 9909, 99097I (2016) https://doi.org/10.1117/12.2232421

KEYWORDS: Adaptive optics, Deformable mirrors, Polarization, Solar telescopes, Telescopes, Actuators, Spatial frequencies, Mirrors, Device simulation, Systems modeling

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SPIE Journal Paper | 11 December 2015 Open Access

Open Access

ADAHELI+: exploring the fast, dynamic Sun in the x-ray, optical, and near-infrared

Francesco Berrilli, Paolo Soffitta, Marco Velli, Paolo Sabatini, Alberto Bigazzi, Ronaldo Bellazzini, Luis Ramon Bellot Rubio, Alessandro Brez, Vincenzo Carbone, Gianna Cauzzi, Fabio Cavallini, Giuseppe Consolini, Fabio Curti, Dario Del Moro, Anna Di Giorgio, Ilaria Ermolli, Sergio Fabiani, Marianne Faurobert, Alex Feller, Klaus Galsgaard, Szymon Gburek, Fabio Giannattasio, Luca Giovannelli, Johann Hirzberger, Stuart Jefferies, Maria Madjarska, Fabio Manni, Alessandro Mazzoni, Fabio Muleri, Valentina Penza, Giovanni Peres, Roberto Piazzesi, Francesca Pieralli, Ermanno Pietropaolo, Valentín Martinez Pillet, Michele Pinchera, Fabio Reale, Paolo Romano, Andrea Romoli, Marco Romoli, Alda Rubini, Pawel Rudawy, Paolo Sandri, Stefano Scardigli, Gloria Spandre, Sami Solanki, Marco Stangalini, Antonio Vecchio, Francesca Zuccarello

JATIS, Vol. 1, Issue 04, 044006, (December 2015) https://doi.org/10.1117/12.10.1117/1.JATIS.1.4.044006

KEYWORDS: Solar processes, Magnetism, X-rays, Sun, Polarimetry, Mirrors, X-ray optics, Satellites, Telescopes, Space telescopes

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SPIE Journal Paper | 2 December 2014

Improvements on adaptive optics control approaches: experimental tests of wavefront correction forecasting

Dario Del Moro, Roberto Piazzesi, Marco Stangalini, Luca Giovannelli, Francesco Berrilli

JATIS, Vol. 1, Issue 01, 019002, (December 2014) https://doi.org/10.1117/12.10.1117/1.JATIS.1.1.019002

KEYWORDS: Adaptive optics, Wavefronts, Control systems, Adaptive control, Telescopes, Actuators, Systems modeling, Signal attenuation, Solar telescopes, Autoregressive models

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Proceedings Article | 22 August 2014 Paper

Paper

The effects of AO systems on polarized light

M. Stangalini, L. Giovannelli, D. Del Moro, F. Berrilli, R. Piazzesi

Proceedings Volume 9148, 91486P (2014) https://doi.org/10.1117/12.2056470

KEYWORDS: Adaptive optics, Polarization, Mirrors, Deformable mirrors, Magnetism, Linear polarizers, Solar telescopes, Calibration, CCD image sensors, Beam splitters

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Proceedings Article | 28 July 2014 Paper

Paper

Optical cavity characterization of the Tor Vergata Fabry-Pérot interferometer

Luca Giovannelli, Francesco Berrilli, Dario Del Moro, Vincenzo Greco, Roberto Piazzesi, Andrea Sordini, Marco Stangalini

Proceedings Volume 9147, 914782 (2014) https://doi.org/10.1117/12.2056477

KEYWORDS: Interferometers, Prototyping, Sensors, Optical resonators, Solar processes, Fabry–Perot interferometry, Humidity, Photovoltaics, Astronomy, Magnetism

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Proceedings Article | 24 September 2012 Paper

Paper

Testing of the "Tor Vergata" Fabry-Pérot interferometer prototype

Luca Giovannelli, Francesco Berrilli, Martina Cocciolo, Dario Del Moro, Alberto Egidi, Roberto Piazzesi, Marco Stangalini

Proceedings Volume 8446, 84463Q (2012) https://doi.org/10.1117/12.926349

KEYWORDS: Prototyping, Interferometers, Software development, Space telescopes, Sensors, Solar processes, Transparency, Spectral resolution, Surface finishing, Actuators

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Proceedings Article | 17 September 2012 Paper

Paper

Performance of an Ar-DME imaging photoelectric polarimeter

S. Fabiani, R. Bellazzini, F. Berrilli, A. Brez, E. Costa, M. Minuti, F. Muleri, M. Pinchera, A. Rubini, P. Soffitta, G. Spandre

Proceedings Volume 8443, 84431C (2012) https://doi.org/10.1117/12.925374

KEYWORDS: Polarimetry, Modulation, Absorption, Sensors, X-rays, Polarization, Prototyping, Hard x-rays, Beryllium, X-ray optics

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Proceedings Article | 13 September 2012 Paper

Paper

Experimental test of turbulence prediction algorithms

Roberto Piazzesi, Marco Stangalini, Dario Del Moro, Francesco Berrilli

Proceedings Volume 8447, 844735 (2012) https://doi.org/10.1117/12.926329

KEYWORDS: Adaptive optics, Algorithm development, Wavefronts, Systems modeling, Turbulence, Process modeling, Control systems, Computer simulations, Solar processes, Telescopes

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Proceedings Article | 7 October 2011 Paper

Paper

The Fabry-Pérot interferometer prototype for the ADAHELI solar small mission

Francesco Berrilli, Martina Cocciolo, Luca Giovannelli, Dario Del Moro, Fabio Giannattasio, Roberto Piazzesi, Marco Stangalini, Alberto Egidi, Fabio Cavallini, Vincenzo Greco, Stefano Selci

Proceedings Volume 8148, 814807 (2011) https://doi.org/10.1117/12.893552

KEYWORDS: Interferometers, Prototyping, Fabry–Perot interferometers, Actuators, Space telescopes, Satellites, Telescopes, Sensors, Channel projecting optics, Transparency

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Proceedings Article | 7 October 2011 Paper

Paper

The intensity effect in magneto-optical filters

M. Oliviero, G. Severino, F. Berrilli, P. Moretti, S. Jefferies

Proceedings Volume 8148, 81480V (2011) https://doi.org/10.1117/12.893613

KEYWORDS: Micro optical fluidics, Potassium, Absorption, Optical filters, Magnetism, Temperature metrology, Bandpass filters, Laser systems engineering, Semiconductor lasers, Solar radiation

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Proceedings Article | 7 October 2011 Paper

Paper

DIMMI-2h a MOF-based instrument for Solar Satellite ADAHELI

M. Stangalini, P. Moretti, F. Berrilli, D. Del Moro, S. Jefferies, G. Severino, M. Oliviero

Proceedings Volume 8148, 81480U (2011) https://doi.org/10.1117/12.893579

KEYWORDS: Magnetism, Micro optical fluidics, Optical filters, Potassium, Solar processes, Atmospheric propagation, Satellites, Sodium, Glasses, Metals

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Proceedings Article | 17 September 2011 Paper

Paper

A comparative test of different compression methods applied to solar images

Dario Del Moro, Ermanno Pietropaolo, Fabio Giannattasio, Francesco Berrilli

Proceedings Volume 8136, 81360J (2011) https://doi.org/10.1117/12.893507

KEYWORDS: Image compression, JPEG2000, Image quality, Data compression, Image quality standards, Algorithm development, Image processing, Wavelets, Quantization, 3D image processing

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Proceedings Article | 11 August 2010 Paper

Paper

The telescope and the double Fabry-Perot interferometer for the ADAHELI solar space mission

V. Greco, F. Cavallini, F. Berrilli

Proceedings Volume 7731, 773142 (2010) https://doi.org/10.1117/12.856617

KEYWORDS: Telescopes, Mirrors, Space telescopes, Fabry–Perot interferometers, Collimation, Interferometers, Fabry–Perot interferometry, Spectral resolution, Magnetism, Sun

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Proceedings Article | 5 August 2010 Paper

Paper

The heat stop for the 4-m European Solar Telescope EST

F. Berrilli, A. Egidi, D. Del Moro, F. Manni, M. Cocciolo, A. Scotto, R. Volkmer, F. C. Bettonvil, M. Collados Vera, L. Cavaller Marquez, J. Sanchez Capuchino

Proceedings Volume 7733, 77332Z (2010) https://doi.org/10.1117/12.856596

KEYWORDS: Cooling systems, Reflectivity, Sun, Telescopes, Solar telescopes, CFD analysis, Coronagraphy, Mirrors, Thermal analysis, Finite element methods

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Proceedings Article | 29 July 2010 Paper

Paper

Multiple field-of-view MCAO for a Large Solar Telescope: LOST simulations

Marco Stangalini, Francesco Berrilli, Dario Del Moro, Roberto Piazzesi

Proceedings Volume 7736, 77364H (2010) https://doi.org/10.1117/12.856999

KEYWORDS: Wavefronts, Adaptive optics, Solar telescopes, Device simulation, Neural networks, Signal processing, Zernike polynomials, Wavefront sensors, Deformable mirrors, Wavefront reconstruction

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Proceedings Article | 22 July 2010 Paper

Paper

EST Telescope: primary mirror, support, and cooling system

R. Volkmer, F. Manni, M. Giannuzzi, A. Scotto, L. Cavaller, T. Scheiffelen, F. Bettonvil, F. Berrilli

Proceedings Volume 7739, 77391O (2010) https://doi.org/10.1117/12.857238

KEYWORDS: Mirrors, Telescopes, Cooling systems, Actuators, Space telescopes, Solids, Solar telescopes, Adaptive optics, Active optics, Optical instrument design

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Proceedings Article | 9 July 1998 Paper

Paper

Italian panoramic monochromator for the THEMIS telescope: the first results and instrument evaluation

Fabio Cavallini, Francesco Berrilli, Bruno Caccin, Sergio Cantarano, Guido Ceppatelli, Alberto Egidi, Alberto Righini

Proceedings Volume 3355, (1998) https://doi.org/10.1117/12.316809

KEYWORDS: Interferometers, Optical filters, Telescopes, Panoramic photography, Monochromators, Tunable filters, Stray light, Iron, Spectroscopy, Solar processes

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Showing 5 of 20 publications

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