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Papers by Pier Giorgio Rancoita

Research paper thumbnail of Part 3. Impact of Solar wind, Structures and Radiation on Magnetospheres

Our back-tracing code (GeoMagSphere) reconstructs the cosmic ray trajectories inside the Earth’s ... more Our back-tracing code (GeoMagSphere) reconstructs the cosmic ray trajectories inside the Earth’s magnetosphere. GeoMagSphere gets the incoming directions of particles entering the magnetopause and disentangles primary from secondary particles (produced in atmosphere) or even particles trapped inside the Earth’s magnetic field. The separation of these particle families allows us to evaluate the geomagnetic rigidity cutoff. The model can be used considering the internal symmetric (IGRF-12) magnetic field only, or adding the asymmetric external one (Tsyganenko models: T89, T96 or TS05). A quantitative comparison among these models is presented for quiet (solar pressure Pdy n < 4 nPa) and disturbed (Pdy n > 4 nPa) periods of solar activity, as well as during solar events like flares, CMEs. In this analysis we focused our attention on magnetic field data in magnetosphere, from Cluster, and simulated cosmic rays for a generic detector on the ISS as for example AMS-02. We found that ...

Research paper thumbnail of Topical Meeting on High-energy Collisions Involving Nuclei

Research paper thumbnail of Topical Meeting of the ITCP

Research paper thumbnail of Multitarget electronic experiment searching for anomalous particle fragments

Research paper thumbnail of Monte-Carlo approach to galactic cosmic ray propagation in the heliosphere

Nuclear Physics B - Proceedings Supplements, 1999

Research paper thumbnail of Study of current-voltage characteristics of irradiated silicon detectors

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1995

Research paper thumbnail of Systematic study of neutron irradiation effects on the performance of FZ and MCZ silicon detectors

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1994

Research paper thumbnail of The structure of lateral electromagnetic shower development in Si/W and Si/U calorimeters

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1988

Research paper thumbnail of Displacement Damage and Particle Interactions in Silicon Devices

Principles of Radiation Interaction in Matter and Detection, 2011

Research paper thumbnail of Radiation Environments and Damage in Silicon Semiconductors

Principles of Radiation Interaction in Matter and Detection, 2009

Research paper thumbnail of Cosmic Rays trajectory reconstruction in the Earth Magnetosphere: External Field models importance during the last solar active period (from 2011 to 2013)

Research paper thumbnail of A quantitative study on the effects of external geomagnetic fields by using the GeoMagSphere back-tracing code

Advances in Space Research, 2021

Abstract Evaluation of cosmic ray trajectories and penetration inside the Earth environment is ma... more Abstract Evaluation of cosmic ray trajectories and penetration inside the Earth environment is mandatory for estimation of flux by on-orbit detectors as well as of radiation damage on electronics devices and biological tissues, like those of astronauts onboard the International Space Station. We studied the impact of the external magnetic field on the calculation of some parameters like the rigidity cut-off, by a quantitative comparison among several geomagnetic field models. For this purpose we used GeoMagSphere back-tracing code, performing the particle trajectory reconstruction back-in-time from the chosen position and time up to the borders of the magnetosphere. The analysis done points out the need to combine an external magnetic field model with the internal one (usually IGRF). Several external field models have a different impact on the accuracy as well as on the time needed for calculation, important in case of a large amount of back-traced particles. We also studied cosmic ray propagation inside the magnetosphere, separately for quiet and disturbed solar activity periods. We found that during highly disturbed periods and during magnetic storms, rigidity cut-off, as well as cosmic ray flux, can be appropriately evaluated only by using external field models, like that one proposed by Tsyganenko and Sitnov (2005), well describing those particular conditions.

Research paper thumbnail of Displacement Damages and Interactions in Semiconductor Devices

Research paper thumbnail of Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications

... FERRI, GIOVANNI FRANZONI, ALESSIO GHEZZI, PIETRO GOVONI, PIETRO NEGRI, MARCO PAGANONI, ANTONI... more ... FERRI, GIOVANNI FRANZONI, ALESSIO GHEZZI, PIETRO GOVONI, PIETRO NEGRI, MARCO PAGANONI, ANTONINO ... L. BRACCI, G. CALAMAI, E. CAMPAGNA, E. CUOCO, G. GUIDI, G. LOSURDO, F ... ANIMAL PET IMAGING MA MILLER, NC ROUZE and GD HUTCHINS, 381. ...

Research paper thumbnail of Proton Modulation in the Heliosphere for Different Solar Conditions and Prediction for AMS-02

Cosmic Rays for Particle and Astroparticle Physics - Proceedings of the 12th ICATPP Conference ICATPP, 2011

Research paper thumbnail of Principles Of Radiation Interaction In Matter And Detection

Research paper thumbnail of Search for heavy neutral and charged leptons in e+e− annihilation at LEP

Research paper thumbnail of Measurement of Bose–Einstein correlations in e+e−→W+W− events at LEP

Research paper thumbnail of Measurement of exclusive production in mid-virtuality two-photon interactions and study of the process at LEP

Research paper thumbnail of Lateral Electromagnetic Shower Development in Si/W and Si/U Sandwich Calorimeter

IEEE Transactions on Nuclear Science, 1987

Research paper thumbnail of Part 3. Impact of Solar wind, Structures and Radiation on Magnetospheres

Our back-tracing code (GeoMagSphere) reconstructs the cosmic ray trajectories inside the Earth’s ... more Our back-tracing code (GeoMagSphere) reconstructs the cosmic ray trajectories inside the Earth’s magnetosphere. GeoMagSphere gets the incoming directions of particles entering the magnetopause and disentangles primary from secondary particles (produced in atmosphere) or even particles trapped inside the Earth’s magnetic field. The separation of these particle families allows us to evaluate the geomagnetic rigidity cutoff. The model can be used considering the internal symmetric (IGRF-12) magnetic field only, or adding the asymmetric external one (Tsyganenko models: T89, T96 or TS05). A quantitative comparison among these models is presented for quiet (solar pressure Pdy n < 4 nPa) and disturbed (Pdy n > 4 nPa) periods of solar activity, as well as during solar events like flares, CMEs. In this analysis we focused our attention on magnetic field data in magnetosphere, from Cluster, and simulated cosmic rays for a generic detector on the ISS as for example AMS-02. We found that ...

Research paper thumbnail of Topical Meeting on High-energy Collisions Involving Nuclei

Research paper thumbnail of Topical Meeting of the ITCP

Research paper thumbnail of Multitarget electronic experiment searching for anomalous particle fragments

Research paper thumbnail of Monte-Carlo approach to galactic cosmic ray propagation in the heliosphere

Nuclear Physics B - Proceedings Supplements, 1999

Research paper thumbnail of Study of current-voltage characteristics of irradiated silicon detectors

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1995

Research paper thumbnail of Systematic study of neutron irradiation effects on the performance of FZ and MCZ silicon detectors

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1994

Research paper thumbnail of The structure of lateral electromagnetic shower development in Si/W and Si/U calorimeters

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1988

Research paper thumbnail of Displacement Damage and Particle Interactions in Silicon Devices

Principles of Radiation Interaction in Matter and Detection, 2011

Research paper thumbnail of Radiation Environments and Damage in Silicon Semiconductors

Principles of Radiation Interaction in Matter and Detection, 2009

Research paper thumbnail of Cosmic Rays trajectory reconstruction in the Earth Magnetosphere: External Field models importance during the last solar active period (from 2011 to 2013)

Research paper thumbnail of A quantitative study on the effects of external geomagnetic fields by using the GeoMagSphere back-tracing code

Advances in Space Research, 2021

Abstract Evaluation of cosmic ray trajectories and penetration inside the Earth environment is ma... more Abstract Evaluation of cosmic ray trajectories and penetration inside the Earth environment is mandatory for estimation of flux by on-orbit detectors as well as of radiation damage on electronics devices and biological tissues, like those of astronauts onboard the International Space Station. We studied the impact of the external magnetic field on the calculation of some parameters like the rigidity cut-off, by a quantitative comparison among several geomagnetic field models. For this purpose we used GeoMagSphere back-tracing code, performing the particle trajectory reconstruction back-in-time from the chosen position and time up to the borders of the magnetosphere. The analysis done points out the need to combine an external magnetic field model with the internal one (usually IGRF). Several external field models have a different impact on the accuracy as well as on the time needed for calculation, important in case of a large amount of back-traced particles. We also studied cosmic ray propagation inside the magnetosphere, separately for quiet and disturbed solar activity periods. We found that during highly disturbed periods and during magnetic storms, rigidity cut-off, as well as cosmic ray flux, can be appropriately evaluated only by using external field models, like that one proposed by Tsyganenko and Sitnov (2005), well describing those particular conditions.

Research paper thumbnail of Displacement Damages and Interactions in Semiconductor Devices

Research paper thumbnail of Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications

... FERRI, GIOVANNI FRANZONI, ALESSIO GHEZZI, PIETRO GOVONI, PIETRO NEGRI, MARCO PAGANONI, ANTONI... more ... FERRI, GIOVANNI FRANZONI, ALESSIO GHEZZI, PIETRO GOVONI, PIETRO NEGRI, MARCO PAGANONI, ANTONINO ... L. BRACCI, G. CALAMAI, E. CAMPAGNA, E. CUOCO, G. GUIDI, G. LOSURDO, F ... ANIMAL PET IMAGING MA MILLER, NC ROUZE and GD HUTCHINS, 381. ...

Research paper thumbnail of Proton Modulation in the Heliosphere for Different Solar Conditions and Prediction for AMS-02

Cosmic Rays for Particle and Astroparticle Physics - Proceedings of the 12th ICATPP Conference ICATPP, 2011

Research paper thumbnail of Principles Of Radiation Interaction In Matter And Detection

Research paper thumbnail of Search for heavy neutral and charged leptons in e+e− annihilation at LEP

Research paper thumbnail of Measurement of Bose–Einstein correlations in e+e−→W+W− events at LEP

Research paper thumbnail of Measurement of exclusive production in mid-virtuality two-photon interactions and study of the process at LEP

Research paper thumbnail of Lateral Electromagnetic Shower Development in Si/W and Si/U Sandwich Calorimeter

IEEE Transactions on Nuclear Science, 1987

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