Shorter Treatment Time by Intensity Modulation with a Betatron Core Extraction

Pullia, Marco; Bressi, Erminia; Calvi, Giacomo; Donetti, Marco; Falbo, Luciano; Foglio, Stefano; Lante, Valeria; Parravicini, Anna; Priano, Cristiana; Rojatti, Elisa; Savazzi, Simone; Viviani, Claudio

doi:10.18429/JACoW-IPAC2018-MOPML021

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RIS citation export for MOPML021: Shorter Treatment Time by Intensity Modulation with a Betatron Core Extraction

TY - CONF
AU - Pullia, M. G.
AU - Bressi, E.
AU - Calvi, G.M.A.
AU - Donetti, M.
AU - Falbo, L.
AU - Foglio, S.
AU - Lante, V.
AU - Parravicini, A.
AU - Priano, C.
AU - Rojatti, E.
AU - Savazzi, S.
AU - Viviani, C.
ED - Koscielniak, Shane
ED - Satogata, Todd
ED - Schaa, Volker RW
ED - Thomson, Jana
TI - Shorter Treatment Time by Intensity Modulation with a Betatron Core Extraction
J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018
C1 - Vancouver, BC, Canada
T2 - International Particle Accelerator Conference
T3 - 9
LA - english
AB - The CNAO (National Center for Oncological Hadrontherapy) main accelerator is a synchrotron capable to accelerate carbon ions up to 400 MeV/u and protons up to 250 MeV. Three treatment rooms are available and are equipped with horizontal beam lines; one of the treatment rooms also features a vertical treatment line to allow additional treatment ports. All of the beamlines are equipped with an active beam scanning system for dose delivery. With such a dose distribution technique, particles are sent to different depths by changing the energy from the synchrotron and are moved transversally by means of two scanning magnets. The number of particles to be deposited in each position varies strongly within the same iso-energetic layer. Part of the dose needed in a given position is in fact delivered by particles directed to deeper layers. In order to maintain the required precision on the number of particles delivered to each spot, the intensity is reduced when spots that require low number of particles are present in a layer. A method to shorten the irradiation time based on variable intensity within the same layer is presented that works also with a betatron based extraction scheme.
PB - JACoW Publishing
CP - Geneva, Switzerland
SP - 439
EP - 442
KW - betatron
KW - extraction
KW - proton
KW - radiation
KW - synchrotron
DA - 2018/06
PY - 2018
SN - 978-3-95450-184-7
DO - 10.18429/JACoW-IPAC2018-MOPML021
UR - http://jacow.org/ipac2018/papers/mopml021.pdf
ER -