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1. (WO2019025933) METHOD FOR MEASURING RADIOTHERAPY DOSES
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Pub. No.: WO/2019/025933 International Application No.: PCT/IB2018/055666
Publication Date: 07.02.2019 International Filing Date: 30.07.2018
IPC:
G01T 1/14 (2006.01) ,G01T 1/29 (2006.01)
G PHYSICS
01
MEASURING; TESTING
T
MEASUREMENT OF NUCLEAR OR X-RADIATION
1
Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
02
Dosimeters
14
Electrostatic dosimeters
G PHYSICS
01
MEASURING; TESTING
T
MEASUREMENT OF NUCLEAR OR X-RADIATION
1
Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
29
Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
Applicants:
ISTITUTO NAZIONALE DI FISICA NUCLEARE (INFN) [IT/IT]; Via E. Fermi, 40 00044 Frascati ( RM), IT
Inventors:
CIRRONE, Giuseppe Antonio Pablo; IT
ROMANO, Francesco; IT
PETRINGA, Giada; IT
AMATO, Antonino; IT
Agent:
LEONE, Mario; IT
CANTALUPPI, Stefano; IT
CURRADO, Luisa; IT
DE GIORGI, Michele; IT
FABRIS, Stefano; IT
GHIRARDI, Valeria; IT
LOCAS, Davide; IT
MORABITO, Sara; IT
SPADARO, Marco; IT
SUSANETTO, Carlo; IT
Priority Data:
10201700008785131.07.2017IT
Title (EN) METHOD FOR MEASURING RADIOTHERAPY DOSES
(FR) PROCÉDÉ DE MESURE DE DOSES DE RADIOTHÉRAPIE
Abstract:
(EN) A method for measuring radiotherapy doses, in particular on a subject undergoing radiotherapy or other treatments with ionizing radiations, does not require any voltage applied to the subject nor the radiation of a signal collecting sensor, and it is capable of providing a measurement of absolute type, and on this regard it comprises the steps of: electrically insulating the subject during the radiotherapy treatment; applying at least one electrode to the subject, or connected to an amplifier with a system for acquiring the signal outgoing from the amplifier; detecting, by means of said at least one electrode, the voltage pulse produced during the radiotherapy treatment and deriving from the ionization secondary electrons set into motion and/or by the loaded net charge induced in the subject; converting said voltage pulse into a value of charge induced by the treatment in the subject; and determining the dose of ionizing radiations received by the subject by means of a processing system which uses the above-mentioned value of the induced charge, the energy spectrum of the incident beam of ionizing radiations and the contact surface of said incident beam on the subject.
(FR) La présente invention concerne un procédé de mesure de doses de radiothérapie, en particulier sur un sujet subissant une radiothérapie ou d’autres traitements avec des rayonnements ionisants, qui ne nécessite aucune tension appliquée au sujet ou l’irradiation d’un capteur de collecte de signal, et qui permet de fournir une mesure de type absolu, et à cet effet, qui comprend les étapes de : isolation électrique du sujet pendant le traitement de radiothérapie ; application d’au moins une électrode sur le sujet, ou connectée à un amplificateur avec un système pour l’acquisition du signal de sortie de l’amplificateur ; détection, au moyen de ladite au moins une électrode, de l’impulsion de tension produite pendant le traitement de radiothérapie et dérivation à partir de l’ionisation d’électrons secondaires mis en mouvement et/ou par la charge nette chargée induite chez le sujet ; conversion de ladite impulsion de tension en valeur de charge induite par le traitement chez le sujet ; et détermination de la dose de rayonnements ionisants reçue par le sujet au moyen d’un système de traitement qui utilise la valeur mentionnée ci-dessus de la charge induite, le spectre d’énergie du faisceau incident de rayonnements ionisants et la surface de contact dudit faisceau incident sur le sujet. FIG. 1: Iin%%%Ientrée Vout%%%Vsortie Gas_Discharger%%%Evacuateur de gaz
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)