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http://hdl.handle.net/20.500.12386/26377
Titolo: | QBeRT: An innovative instrument for qualification of particle beam in real-time | Autori: | GALLO, GIUSEPPE Lo Presti, D. Bonanno, D.L. Longhitano, F. Bongiovanni, D.G. Reito, S. Randazzo, N. Leonora, E. Sipala, V. Tommasino, F. |
Data pubblicazione: | 2016 | Rivista: | JOURNAL OF INSTRUMENTATION | Numero: | 11 | Fascicolo: | 11 | Da pagina:: | C11014 | Abstract: | 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 cm<SUP>2</SUP>. 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 10<SUP>6</SUP> particles per second) and in therapy conditions up to 10<SUP>9</SUP> 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. | URI: | http://hdl.handle.net/20.500.12386/26377 | URL: | https://iopscience.iop.org/article/10.1088/1748-0221/11/11/C11014 | ISSN: | 1748-0221 | DOI: | 10.1088/1748-0221/11/11/C11014 | Bibcode ADS: | 2016JInst..11C1014G | Fulltext: | open |
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