1. Design of a new tracking device for on-line beam range monitor in carbon therapy
- Author
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M. Senzacqua, Michela Marafini, Federico Miraglia, Carlo Mancini-Terracciano, Angela Bollella, Antoni Rucinski, C. Voena, A. Russomando, P.M. Frallicciardi, Giuseppe Battistoni, Riccardo Faccini, Vincenzo Patera, Davide Pinci, Ilaria Mattei, Riccardo Paramatti, Luca Piersanti, Alessio Sarti, Francesco Collamati, F. Ferroni, Elena Solfaroli-Camillocci, Silvia Muraro, Erika De Lucia, Giacomo Traini, M. Toppi, and Adalberto Sciubba
- Subjects
Quantitative Biology::Tissues and Organs ,Physics::Medical Physics ,Biophysics ,General Physics and Astronomy ,Heavy Ion Radiotherapy ,Bragg peak ,Scintillator ,Tracking (particle physics) ,030218 nuclear medicine & medical imaging ,Hadron therapy ,Physics and Astronomy (all) ,03 medical and health sciences ,0302 clinical medicine ,Optics ,Nuclear Medicine and Imaging ,Radiology, Nuclear Medicine and imaging ,Particle detection ,Physics ,Range (particle radiation) ,Calorimeter (particle physics) ,Phantoms, Imaging ,business.industry ,Detector ,Radiotherapy Dosage ,Equipment Design ,General Medicine ,Real time monitoring ,Radiology, Nuclear Medicine and Imaging ,Charged particle ,030220 oncology & carcinogenesis ,Scintillation Counting ,Protons ,Radiology ,business ,Beam (structure) - Abstract
Charged particle therapy is a technique for cancer treatment that exploits hadron beams, mostly protons and carbon ions. A critical issue is the monitoring of the beam range so to check the correct dose deposition to the tumor and surrounding tissues. The design of a new tracking device for beam range real-time monitoring in pencil beam carbon ion therapy is presented. The proposed device tracks secondary charged particles produced by beam interactions in the patient tissue and exploits the correlation of the charged particle emission profile with the spatial dose deposition and the Bragg peak position. The detector, currently under construction, uses the information provided by 12 layers of scintillating fibers followed by a plastic scintillator and a pixelated Lutetium Fine Silicate (LFS) crystal calorimeter. An algorithm to account and correct for emission profile distortion due to charged secondaries absorption inside the patient tissue is also proposed. Finally detector reconstruction efficiency for charged particle emission profile is evaluated using a Monte Carlo simulation considering a quasi-realistic case of a non-homogenous phantom.
- Published
- 2017
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