Complesso Universitario Of Monserrato

Monserrato, Italy

Complesso Universitario Of Monserrato

Monserrato, Italy
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Sipala V.,University of Sassari | Sipala V.,National Institute of Nuclear Physics, Italy | Bruzzi M.,University of Florence | Bruzzi M.,National Institute of Nuclear Physics, Italy | And 23 more authors.
Journal of Instrumentation | Year: 2017

The mixed-signal PRIMA-chip has been developed for sensitive-position silicon detector in proton imaging application. The chip is based upon the binary readout architecture which, providing fully parallel signal processing, is a good solution for high intensity radiation application. It includes 32-front-end channels with a charge preamplifier, a shaper and a comparator. In order to adjust the comparator thresholds, each channel contains a 8-bit DAC, programmed using an I2C like interface. The PRIMA-chip has been fabricated using the AMS 0.35 μm standard CMOS process and its performances have been tested coupling it to the detectors used in the tracker assembled for the pCT (proton Computed Tomography) apparatus. © 2017 IOP Publishing Ltd and Sissa Medialab srl.


Gallo G.,University of Catania | Gallo G.,National Institute of Nuclear Physics, Italy | Lo Presti D.,University of Catania | Lo Presti D.,National Institute of Nuclear Physics, Italy | And 9 more authors.
Journal of Instrumentation | Year: 2016

This paper describes an innovative beam diagnostic and monitoring system composed of a position sensitive detector and a residual range detector, based on scintillating optical fiber and on an innovative read-out strategy and reconstruction algorithm. The position sensitive detector consists of four layers of pre-aligned and juxtaposed scintillating fibres arranged to form two identical overlying and orthogonal planes. The 500 μm square section fibres are optically coupled to two Silicon Photomultiplier arrays using a channel reduction system patented by the Istituto Nazionale di Fisica Nucleare. The residual range detector is a stack of sixty parallel layers of the same fibres used in the position detector, each of which is optically coupled to a channel of Silicon Photomultiplier array by wavelength shifting fibres. The sensitive area of the two detectors is 9 × 9 cm2. After being fully characterized at CATANA proton therapy facility, the performance of the prototypes was tested during last year also at TIFPA proton irradiation facility. The unique feature of these detectors is the possibility to work in imaging conditions (e.g. a particle at a time up to 106 particles per second) and in therapy conditions up to 109 particles per second. The combined use of the two detectors, in imaging conditions, as an example of application, allows the particle radiography of an object. In therapy conditions, in particular, the system measures the position, the profiles, the energy and the fluence of the beam. © 2016 IOP Publishing Ltd and Sissa Medialab srl.


Tramontana A.,National Institute of Nuclear Physics, Italy | Tramontana A.,University of Catania | Candiano G.,National Institute of Nuclear Physics, Italy | Carpinelli M.,University of Sassari | And 16 more authors.
Journal of Instrumentation | Year: 2014

ELI-Beamlines is one of the four pillars of the ELI (Extreme Light Infrastructure) pan-European project. It will be an ultrahigh-intensity, high repetition-rate, femtosecond laser facility whose main goals are the generation and applications of high-brightness X-ray sources and accelerated charged particles. In particular medical and multidisciplinary applications with laser-accelerated beams are treated by the ELIMED task force, a collaboration between different research institutes. A crucial goal for this network is represented by the design and the realization of a transport beamline able to provide ion beams with suitable characteristics in terms of energy spectrum and angular distribution in order to perform dosimetric tests and biological cell irradiations. A first prototype of transport beamline has been already designed and some magnetic elements are already under construction. In particular, an Energy Selector System (ESS) prototype has been already realized at LNS-INFN. This paper reports about the studies of the ESS properties as, for instance, energy spread and transmission efficiency, carried out using the GEANT4 Monte Carlo code. © 2014 IOP Publishing Ltd and Sissa Medialab srl.


Cirrone G.A.P.,National Institute of Nuclear Physics, Italy | Cirrone G.A.P.,ASCR Institute of Physics Prague | Tramontana A.,National Institute of Nuclear Physics, Italy | Tramontana A.,University of Catania | And 25 more authors.
Journal of Instrumentation | Year: 2014

Thomson Spectrometers (TPs) are widely used for beam diagnostic as they provide simultaneous information on charge over mass ratio, energy and momentum of detected ions. A new TP design has been realized at INFN-LNS within the LILIA (Laser Induced Light Ion Acceleration) and ELIMED (MEDical application at ELI-Beamlines) projects. This paper reports on the construction details of the TP and on its experimental tests performed at PALS laboratory in Prague, with the ASTERIX IV laser system. Reported data are obtained with polyethylene and polyvinyl alcohol solid targets, they have been compared with data obtained from other detectors. Consistency among results confirms the correct functioning of the new TP. The main features, characterizing the design, are a wide acceptance of the deflection sector and a tunability of the, partially overlapping, magnetic and electric fields that allow to resolve ions with energy up to about 40 MeV for protons. © 2014 IOP Publishing Ltd and Sissa Medialab srl.


Tramontana A.,National Institute of Nuclear Physics, Italy | Tramontana A.,University of Catania | Anzalone A.,National Institute of Nuclear Physics, Italy | Candiano G.,National Institute of Nuclear Physics, Italy | And 25 more authors.
Journal of Instrumentation | Year: 2014

Laser accelerated proton beams represent nowadays an attractive alternative to the conventional ones and they have been proposed in different research fields. In particular, the interest has been focused in the possibility of replacing conventional accelerating machines with laser-based accelerators in order to develop a new concept of hadrontherapy facilities, which could result more compact and less expensive. With this background the ELIMED (ELIMED: ELI-Beamlines MEDical applications) research project has been launched by LNS-INFN researchers (Laboratori Nazionali del Sud-Istituto Nazionale di Fisica Nucleare, Catania, IT) and ASCR-FZU researchers (Academy of Sciences of the Czech Republic-Fyzikální ústar, Prague, Cz), within the pan-European ELI-Beamlines facility framework. Its main purposes are the demonstration of future applications in hadrontherapy of optically accelerated protons and the realization of a laser-accelerated ion transport beamline for multidisciplinary applications. Several challenges, starting from laser-target interaction and beam transport development, up to dosimetric and radiobiological issues, need to be overcome in order to reach the final goals. The design and the realization of a preliminary beam handling and dosimetric system and of an advanced spectrometer for high energy (multi-MeV) laser-accelerated ion beams will be shortly presented in this work. © 2014 IOP Publishing Ltd and Sissa Medialab srl.


Vaccarezza C.,National Institute of Nuclear Physics, Italy | Alesini D.,National Institute of Nuclear Physics, Italy | Anania M.P.,National Institute of Nuclear Physics, Italy | Bacci A.,National Institute of Nuclear Physics, Italy | And 38 more authors.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | Year: 2016

The SPARC_LAB Thomson source is a compact X-ray source based on the Thomson backscattering process presently under its second phase of commissioning at the LNF. The electron beam energy ranges between 30 and 150. MeV, the electrons collide head-on with the Ti:Sapphire FLAME laser pulse the energy of which ranges between 1 and 5. J with pulse lengths in the 25 fs-10. ps range, this provides an X-ray energy tunability in the range of 20-500. keV, with the further capability to generate strongly non-linear phenomena and to drive diffusion processes due to multiple and plural scattering effects. The experimental results of the obtained X-ray radiation are presented. © 2016.

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