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Towards a proton imaging system

Civinini, Carlo and Brianzi, Mirko and Bruzzi, Mara and Bucciolini, Marta and Candiano, Giuliana and Capineri, Lorenzo and Cirrone, Giuseppe Antonio Pablo and Cuttone, Giacomo and Lo Presti, Domenico and Marrazzo, Livia and Mazzaglia, Santi Enrico and Menichelli, David and Pieri, Stefano and Randazzo, Nunzio and Sipala, Valeria and Stancampiano, Concetta and Talamonti, Cinzia and Tesi, Mauro and Valentini, Samuela (2010) Towards a proton imaging system. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 623 (1), p. 588-590. ISSN 0168-9002. eISSN 1872-9576. Article.

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DOI: 10.1016/j.nima.2010.03.079

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Hadron therapy for tumor treatment is nowadays used in several medical centres. The main advantage in using protons or light ions beams is the possibility of tightly shaping the radiation dose to the target volume. Presently the spatial accuracy of the therapy is limited by the uncertainty in stopping power distribution, which is derived, for each treatment, from the photon attenuation coefficients measured by X-ray tomography. A direct measurement of the stopping powers will help in reducing this uncertainty. This can be achieved by using a proton beam and a detection system able to reconstruct a tomography image of the patient.
As a first step towards such a system an apparatus able to perform a proton transmission radiography (pCR) has been designed. It consists of a silicon microstrip tracker, measuring proton trajectories, and a YAG:Ce calorimeter to determine the particle residual energy. Proton beam and laboratory tests have been performed on the system components prototypes: the main results will be shown and discussed.

Item Type:Article
ID Code:9586
Uncontrolled Keywords:Medical imaging, silicon microstrip, calorimetry, tracking
Subjects:Area 02 - Scienze fisiche > FIS/07 Fisica applicata (a beni culturali, ambientali, biologia e medicina)
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Chimica e Farmacia
Publisher:Elsevier Science
Additional Information:Presented at the "1st International Conference on Technology and Instrumentation in Particle Physics", TIPP09, Tsukuba, Japan, 12-17 March 2009.
Deposited On:27 Jan 2014 10:18

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