Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
energy
Dosimetry of high intensity electron beams produced by dedicated accelerators in Intra-Operative Radiation Therapy (IORT)
IEEE Transactions on Nuclear Science, Volume 56, No. 1, Article 4782142, Year 2009
Notification
URL copied to clipboard!
Description
The technique of High Dose Intra-Operative Radiation Therapy (HDR-IORT) consists in the delivery of irradiation immediately following the removal of a cancerous mass, where the same incision is used to direct the radiation to the tumour bed. Given its particular characteristics, IORT requires dose measurements that are different from those requested in external radiotherapy treatments. The main reason lies in the fact that in this case a single high dose must be delivered to a target volume whose extension and depths will be determined directly during the operation. Since the possibility of devising a treatment plan using a TPS (Treatment Planning System) is not available, it is necessary to know the physical and geometric characteristics of the beam. Defining the physical characteristics of the beam entails both measuring the delivered dose and defining (monitoring) procedures. In any case a much higher dose will be released than occurs with conventional external accelerators. The ionization chamber recommended by the standard protocols for radiotherapy cannot be used because of the ion recombination inside the gas. In this work we propose the use of a calorimetric phantom, the Dosiort, to measure the beam properties. We describe the main characteristics and some preliminary results of the Dosiort System, which is proposed within the framework of a research project of the INFN (Italian National Institute of Nuclear Physics). The set-up is a solid phantom of density approaching 1 g/cm3 with sensitive layers of scintillating fibres at fixed a position in a calorimetric configuration for the containment of electrons of energy 412 MeV. The prototype will be able to define the physical and geometrical characteristics of the electron beam (energy, isotropy, homogeneity, etc) and to measure the parameters needed to select the energy, the intensity and the Monitor Units (MU) for the exposition: Percentage Depth Dose; Beam profiles; Isodose curves; Values of dose for MU. © 2006 IEEE.
Authors & Co-Authors
Lamanna, Ernesto
Italy, Catanzaro
University Hospital 'magna Graecia'
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Fiorillo, Antonino S.
Italy, Catanzaro
University Hospital 'magna Graecia'
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Bruno, Carlo
Italy, Rende
Università Della Calabria
Santaniello, Anna
Italy, Rende
Università Della Calabria
Tchuente Siaka, Yvette Flore
Italy, Rende
Università Della Calabria
Cameroon, Douala
University of Douala
Berdondini, Andrea
Italy, Bologna
Alma Mater Studiorum Università Di Bologna
Italy, Bologna
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bologna
Bettuzzi, Matteo
Italy, Bologna
Alma Mater Studiorum Università Di Bologna
Italy, Bologna
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bologna
Brancaccio, Rosa
Italy, Bologna
Alma Mater Studiorum Università Di Bologna
Italy, Bologna
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bologna
Casali, Franco
Italy, Bologna
Alma Mater Studiorum Università Di Bologna
Italy, Bologna
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bologna
Morigi, Maria Pia
Italy, Bologna
Alma Mater Studiorum Università Di Bologna
Italy, Bologna
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bologna
Barca, Giuliana
Italy, Cosenza
Azienda Ospedaliera
Castrovillari, Francesca
Italy, Cosenza
Azienda Ospedaliera
Statistics
Citations: 12
Authors: 12
Affiliations: 7
Identifiers
Doi:
10.1109/TNS.2008.2004801
ISSN:
00189499
Research Areas
Cancer