V. Sipala - Academia.edu (original) (raw)

Papers by V. Sipala

Research paper thumbnail of Letter of intent for KM3NeT 2.0

Journal of Physics G: Nuclear and Particle Physics, 2016

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Research paper thumbnail of Measurement of fragmentation cross sections ofC12ions on a thin gold target with the FIRST apparatus

Physical Review C, 2016

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Research paper thumbnail of YAG(Ce) crystal characterization with proton beams

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

A YAG(Ce) crystal has been characterized with a proton beam up to 100 MeV. Tests were performed t... more A YAG(Ce) crystal has been characterized with a proton beam up to 100 MeV. Tests were performed to investigate the possibility of using this detector as a proton calorimeter. A crystal size has been chosen that is able to stop up to 200 MeV. Energy resolution and light response have been measured at Laboratori Nazionali del Sud with a proton beam up to 60 MeV and a spatial homogeneity study of the crystal has been performed at Loma Linda University Medical Center with a 100 MeV proton beam. The YAG(Ce) crystal showed a good energy resolution equal to 3.7% at 60 MeV and measurements, performed in the 30–60 MeV proton energy range, were fitted by Birks' equation. Using a silicon tracker to determine the particle entry point in the crystal, a spatial homogeneity value of 1.7% in the light response has been measured.

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Research paper thumbnail of Measurement of the atmospheric muon depth intensity relation with the NEMO Phase-2 tower

Astroparticle Physics, 2015

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Research paper thumbnail of A silicon pixel detector system as an imaging tool for proton beam characterization

2008 IEEE Nuclear Science Symposium Conference Record, 2008

High energy protons represent a very promising alternative in the tumor irradiation, as respect t... more High energy protons represent a very promising alternative in the tumor irradiation, as respect the photon and electron beams. In Italy, the first and at present the only proton-therapy facility, CATANA (Centro di AdroTerapia e Applicazioni Nucleari Avanzate), was built in Catania, at the Istituto Nazionale di Fisica Nucleare-Laboratori Nazionali del Sud (INFN-LNS). Here a 62 MeV proton beam, produced

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Research paper thumbnail of The PRIMA (PRoton IMAging) collaboration: Development of a proton Computed Tomography apparatus

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2013

ABSTRACT This paper describes the development of a proton Computed Tomography (pCT) apparatus abl... more ABSTRACT This paper describes the development of a proton Computed Tomography (pCT) apparatus able to reconstruct a map of stopping power useful for accurate proton therapy treatment planning and patient positioning. This system is based on two main components: a silicon microstrip tracker and a YAG:Ce crystal calorimeter. Each proton trajectory is sampled by the tracker in four points: two upstream and two downstream the object under test; the particle residual energy is measured by the calorimeter. The apparatus is described in details together with a discussion on the characterization of the hardware under proton beams with energies up to 175 MeV.

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Research paper thumbnail of The PRIMA (Proton Imaging) collaboration: Status of the development of a proton Computed Tomography Scanner

2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC), 2012

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Research paper thumbnail of PRIMA proton imaging for clinical application

2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC), 2012

ABSTRACT PRIMA project is an Italian project funded by INFN and MIUR (PRIN 2006), which developed... more ABSTRACT PRIMA project is an Italian project funded by INFN and MIUR (PRIN 2006), which developed a proton Computed Tomography (pCT) prototype based on tracking the single proton. PRIMA approaches to the pCT consist in the use of silicon detectors, which measure the energy and position of individual protons before and after they traverse the object. The device consists of a silicon microstrip tracker, used to reconstruct the trajectory of each proton, and a calorimeter that measure the particle residual energy. It is characterized by an active area of 5 × 5 cm2 and by an acquisition rate of 10kHz. PRIMA prototype was tested, under 62 MeV proton beam at Laboratory Nazionali del Sud, (Catania Italy) and under 180 MeV proton beam at Svedberg Laboratories, Uppsala Universitet, (Uppsala Sweden). Several experiments concerning proton imaging, tomography and radiography images, were carried out during these beam tests. In particular in this paper will be reported the PRIMA experience on the data acquired using special phantoms. The performed tests aimed to evaluate the clinical applicability of proton radiography in terms of image quality. In order to test spatial resolution, electron density resolution and energy resolution of the system, PRIMA group has developed suitable phantoms for radiography. The phantoms are custom-made and suitable for high-contrast spatial resolution. They are PolyMetilMetacrilate (PMMA) cylinders with holes of different size and depth. In particular, the phantom diameter was chosen accordingly with the tracker field of view while the phantom length depends on the beam quality: it was 20mm and 150mm for 60MeV and 180MeV proton beam respectively. In this paper the experimental setup will be described, radiographic images will be shown and quantitative results on spatial resolution will be reported.

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Research paper thumbnail of Data acquisition system for a proton imaging apparatus

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Research paper thumbnail of Development of the Silicon Tracker and of a YAG: Ce Calorimeter for Proton Computed Radiography

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Research paper thumbnail of Erratum: The optical modules of the phase-2 of the NEMO project (Journal of Instrumentation)

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Research paper thumbnail of Long-term optical background measurements in the Capo Passero deep-sea site

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Research paper thumbnail of Underwater acoustic positioning system for the SMO and KM3NeT - Italia projects

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Research paper thumbnail of The KENTROS detector for identification and kinetic energy measurements of nuclear fragments at polar angles between 5 and 90 degrees

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Research paper thumbnail of The FIRST experiment for nuclear fragmentation measurements at GSI

Nuclear fragmentation processes are relevant in different fields of physics concerning both basic... more Nuclear fragmentation processes are relevant in different fields of physics concerning both basic research and applications. FIRST (Fragmentation of Ions Relevant for Space and Therapy) is an experiment aimed at the measurement of double differential cross sections (DDCS), with respect to kinetic energy and scattering polar angle, of nuclear fragmentation processes relevant for hadron therapy and for space radiation protection applications, in the energy range between 100 and 1000 MeV/u. The experiment was mounted at the GSI laboratories of Darmstadt, in Germany. A first data taking was performed in August 2011, using 400 MeV/u 12C on carbon and gold targets. In this work we present a description of the experimental apparatus and some figures from the data acquisition and from the preliminary work on data analysis.

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Research paper thumbnail of Deep sea tests of a prototype of the KM3NeT digital optical module

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Research paper thumbnail of EXPADES: A new detection system for charged particles in experiments with RIBs

Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 2008

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Research paper thumbnail of Detailed Monte Carlo investigation of a proton computed tomography system

IEEE Nuclear Science Symposium Conference Record, 2005

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Research paper thumbnail of Proton radiography studies for proton CT

IEEE Nuclear Science Symposium Conference Record, 2007

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Research paper thumbnail of A PMT interface for the Optical Module front-end of a neutrino underwater telescope

Proceedings of the 2007 IEEE Workshop on Design and Diagnostics of Electronic Circuits and Systems, DDECS, 2007

A proposal for a new system to capture signals in the optical module (OM) of an underwater neutri... more A proposal for a new system to capture signals in the optical module (OM) of an underwater neutrino telescope is described. It concentrates on the problem of power consumption and the time precision. In particular, a solution for the interface between the photomultiplier (PMT) and the front-end electronics is presented.

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Research paper thumbnail of Letter of intent for KM3NeT 2.0

Journal of Physics G: Nuclear and Particle Physics, 2016

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Research paper thumbnail of Measurement of fragmentation cross sections ofC12ions on a thin gold target with the FIRST apparatus

Physical Review C, 2016

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Research paper thumbnail of YAG(Ce) crystal characterization with proton beams

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

A YAG(Ce) crystal has been characterized with a proton beam up to 100 MeV. Tests were performed t... more A YAG(Ce) crystal has been characterized with a proton beam up to 100 MeV. Tests were performed to investigate the possibility of using this detector as a proton calorimeter. A crystal size has been chosen that is able to stop up to 200 MeV. Energy resolution and light response have been measured at Laboratori Nazionali del Sud with a proton beam up to 60 MeV and a spatial homogeneity study of the crystal has been performed at Loma Linda University Medical Center with a 100 MeV proton beam. The YAG(Ce) crystal showed a good energy resolution equal to 3.7% at 60 MeV and measurements, performed in the 30–60 MeV proton energy range, were fitted by Birks' equation. Using a silicon tracker to determine the particle entry point in the crystal, a spatial homogeneity value of 1.7% in the light response has been measured.

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Research paper thumbnail of Measurement of the atmospheric muon depth intensity relation with the NEMO Phase-2 tower

Astroparticle Physics, 2015

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Research paper thumbnail of A silicon pixel detector system as an imaging tool for proton beam characterization

2008 IEEE Nuclear Science Symposium Conference Record, 2008

High energy protons represent a very promising alternative in the tumor irradiation, as respect t... more High energy protons represent a very promising alternative in the tumor irradiation, as respect the photon and electron beams. In Italy, the first and at present the only proton-therapy facility, CATANA (Centro di AdroTerapia e Applicazioni Nucleari Avanzate), was built in Catania, at the Istituto Nazionale di Fisica Nucleare-Laboratori Nazionali del Sud (INFN-LNS). Here a 62 MeV proton beam, produced

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Research paper thumbnail of The PRIMA (PRoton IMAging) collaboration: Development of a proton Computed Tomography apparatus

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2013

ABSTRACT This paper describes the development of a proton Computed Tomography (pCT) apparatus abl... more ABSTRACT This paper describes the development of a proton Computed Tomography (pCT) apparatus able to reconstruct a map of stopping power useful for accurate proton therapy treatment planning and patient positioning. This system is based on two main components: a silicon microstrip tracker and a YAG:Ce crystal calorimeter. Each proton trajectory is sampled by the tracker in four points: two upstream and two downstream the object under test; the particle residual energy is measured by the calorimeter. The apparatus is described in details together with a discussion on the characterization of the hardware under proton beams with energies up to 175 MeV.

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Research paper thumbnail of The PRIMA (Proton Imaging) collaboration: Status of the development of a proton Computed Tomography Scanner

2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC), 2012

Bookmarks Related papers MentionsView impact

Research paper thumbnail of PRIMA proton imaging for clinical application

2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC), 2012

ABSTRACT PRIMA project is an Italian project funded by INFN and MIUR (PRIN 2006), which developed... more ABSTRACT PRIMA project is an Italian project funded by INFN and MIUR (PRIN 2006), which developed a proton Computed Tomography (pCT) prototype based on tracking the single proton. PRIMA approaches to the pCT consist in the use of silicon detectors, which measure the energy and position of individual protons before and after they traverse the object. The device consists of a silicon microstrip tracker, used to reconstruct the trajectory of each proton, and a calorimeter that measure the particle residual energy. It is characterized by an active area of 5 × 5 cm2 and by an acquisition rate of 10kHz. PRIMA prototype was tested, under 62 MeV proton beam at Laboratory Nazionali del Sud, (Catania Italy) and under 180 MeV proton beam at Svedberg Laboratories, Uppsala Universitet, (Uppsala Sweden). Several experiments concerning proton imaging, tomography and radiography images, were carried out during these beam tests. In particular in this paper will be reported the PRIMA experience on the data acquired using special phantoms. The performed tests aimed to evaluate the clinical applicability of proton radiography in terms of image quality. In order to test spatial resolution, electron density resolution and energy resolution of the system, PRIMA group has developed suitable phantoms for radiography. The phantoms are custom-made and suitable for high-contrast spatial resolution. They are PolyMetilMetacrilate (PMMA) cylinders with holes of different size and depth. In particular, the phantom diameter was chosen accordingly with the tracker field of view while the phantom length depends on the beam quality: it was 20mm and 150mm for 60MeV and 180MeV proton beam respectively. In this paper the experimental setup will be described, radiographic images will be shown and quantitative results on spatial resolution will be reported.

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Research paper thumbnail of Data acquisition system for a proton imaging apparatus

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Development of the Silicon Tracker and of a YAG: Ce Calorimeter for Proton Computed Radiography

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Research paper thumbnail of Erratum: The optical modules of the phase-2 of the NEMO project (Journal of Instrumentation)

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Research paper thumbnail of Long-term optical background measurements in the Capo Passero deep-sea site

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Underwater acoustic positioning system for the SMO and KM3NeT - Italia projects

Bookmarks Related papers MentionsView impact

Research paper thumbnail of The KENTROS detector for identification and kinetic energy measurements of nuclear fragments at polar angles between 5 and 90 degrees

Bookmarks Related papers MentionsView impact

Research paper thumbnail of The FIRST experiment for nuclear fragmentation measurements at GSI

Nuclear fragmentation processes are relevant in different fields of physics concerning both basic... more Nuclear fragmentation processes are relevant in different fields of physics concerning both basic research and applications. FIRST (Fragmentation of Ions Relevant for Space and Therapy) is an experiment aimed at the measurement of double differential cross sections (DDCS), with respect to kinetic energy and scattering polar angle, of nuclear fragmentation processes relevant for hadron therapy and for space radiation protection applications, in the energy range between 100 and 1000 MeV/u. The experiment was mounted at the GSI laboratories of Darmstadt, in Germany. A first data taking was performed in August 2011, using 400 MeV/u 12C on carbon and gold targets. In this work we present a description of the experimental apparatus and some figures from the data acquisition and from the preliminary work on data analysis.

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Research paper thumbnail of Deep sea tests of a prototype of the KM3NeT digital optical module

Bookmarks Related papers MentionsView impact

Research paper thumbnail of EXPADES: A new detection system for charged particles in experiments with RIBs

Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 2008

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Detailed Monte Carlo investigation of a proton computed tomography system

IEEE Nuclear Science Symposium Conference Record, 2005

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Research paper thumbnail of Proton radiography studies for proton CT

IEEE Nuclear Science Symposium Conference Record, 2007

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Research paper thumbnail of A PMT interface for the Optical Module front-end of a neutrino underwater telescope

Proceedings of the 2007 IEEE Workshop on Design and Diagnostics of Electronic Circuits and Systems, DDECS, 2007

A proposal for a new system to capture signals in the optical module (OM) of an underwater neutri... more A proposal for a new system to capture signals in the optical module (OM) of an underwater neutrino telescope is described. It concentrates on the problem of power consumption and the time precision. In particular, a solution for the interface between the photomultiplier (PMT) and the front-end electronics is presented.

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