Abstract: Due to the features of the modern radiotherapy techniques, namely intensity modulated radiation therapy and proton therapy, where high spatial dose gradients are often present, detectors to be employed for 2D dose verifications have to satisfy very narrow requirements. In particular they have to show high spatial resolution. In the framework of the European Integrated Project-Methods and Advanced Equipment for Simulation and Treatment in Radio-Oncology (MAESTRO, no. LSHC-CT-2004-503564), a dosimetric detector adequate for 2D pre-treatment dose verifications was developed. It is a modular detector, based on a monolithic silicon-segmented sensor, with an n-type implantation on an epitaxial p-type layer. Each pixel element is 2 x 2 mm(2) and the distance center-to-center is 3 mm. The sensor is composed of 21 x 21 pixels. In this paper, we report the dosimetric characterization of the system with a proton beam. The sensor was irradiated with 62 MeV protons for clinical treatments at INFN-Laboratori Nazionali del Sud (LNS) Catania. The studied parameters were repeatability of a same pixel, response linearity versus absorbed dose, and dose rate and dependence on field size. The obtained results are promising since the performances are within the project specifications. (C) 2008 Elsevier B.V. All rights reserved.

Dosimetric characterization with 62 MeV protons of a silicon segmented detector for 2D dose verifications in radiotherapy / C. Talamonti; M. Bucciolini; L. Marrazzo; D. Menichelli; M. Bruzzi; G. Cirrone; G. Cuttone; P. LoJacono. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - STAMPA. - 596:(2008), pp. 126-130. [10.1016/j.nima.2008.07.134]

Dosimetric characterization with 62 MeV protons of a silicon segmented detector for 2D dose verifications in radiotherapy

TALAMONTI, CINZIA
Writing – Original Draft Preparation
;
BUCCIOLINI, MARTA
Supervision
;
MARRAZZO, LIVIA
Membro del Collaboration Group
;
MENICHELLI, DAVID
Validation
;
BRUZZI, MARA
Supervision
;
2008

Abstract

Abstract: Due to the features of the modern radiotherapy techniques, namely intensity modulated radiation therapy and proton therapy, where high spatial dose gradients are often present, detectors to be employed for 2D dose verifications have to satisfy very narrow requirements. In particular they have to show high spatial resolution. In the framework of the European Integrated Project-Methods and Advanced Equipment for Simulation and Treatment in Radio-Oncology (MAESTRO, no. LSHC-CT-2004-503564), a dosimetric detector adequate for 2D pre-treatment dose verifications was developed. It is a modular detector, based on a monolithic silicon-segmented sensor, with an n-type implantation on an epitaxial p-type layer. Each pixel element is 2 x 2 mm(2) and the distance center-to-center is 3 mm. The sensor is composed of 21 x 21 pixels. In this paper, we report the dosimetric characterization of the system with a proton beam. The sensor was irradiated with 62 MeV protons for clinical treatments at INFN-Laboratori Nazionali del Sud (LNS) Catania. The studied parameters were repeatability of a same pixel, response linearity versus absorbed dose, and dose rate and dependence on field size. The obtained results are promising since the performances are within the project specifications. (C) 2008 Elsevier B.V. All rights reserved.
2008
596
126
130
Goal 3: Good health and well-being for people
C. Talamonti; M. Bucciolini; L. Marrazzo; D. Menichelli; M. Bruzzi; G. Cirrone; G. Cuttone; P. LoJacono
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/318245
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 8
social impact