Titre
Implementation and validation of a beam-current transformer on a medical pulsed electron beam LINAC for FLASH-RT beam monitoring.
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Oesterle, R.
Auteure/Auteur
Gonçalves Jorge, P.
Auteure/Auteur
Grilj, V.
Auteure/Auteur
Bourhis, J.
Auteure/Auteur
Vozenin, M.C.
Auteure/Auteur
Germond, J.F.
Auteure/Auteur
Bochud, F.
Auteure/Auteur
Bailat, C.
Auteure/Auteur
Moeckli, R.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
1526-9914
Statut éditorial
Publié
Date de publication
2021-11
Volume
22
Numéro
11
Première page
165
Dernière page/numéro d’article
171
Peer-reviewed
Oui
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Publication Status: ppublish
Résumé
To implement and validate a beam current transformer as a passive monitoring device on a pulsed electron beam medical linear accelerator (LINAC) for ultra-high dose rate (UHDR) irradiations in the operational range of at least 3 Gy to improve dosimetric procedures currently in use for FLASH radiotherapy (FLASH-RT) studies.
Two beam current transformers (BCTs) were placed at the exit of a medical LINAC capable of UHDR irradiations. The BCTs were validated as monitoring devices by verifying beam parameters consistency between nominal values and measured values, determining the relationship between the charge measured and the absorbed dose, and checking the short- and long-term stability of the charge-absorbed dose ratio.
The beam parameters measured by the BCTs coincide with the nominal values. The charge-dose relationship was found to be linear and independent of pulse width and frequency. Short- and long-term stabilities were measured to be within acceptable limits.
The BCTs were implemented and validated on a pulsed electron beam medical LINAC, thus improving current dosimetric procedures and allowing for a more complete analysis of beam characteristics. BCTs were shown to be a valid method for beam monitoring for UHDR (and therefore FLASH) experiments.
Two beam current transformers (BCTs) were placed at the exit of a medical LINAC capable of UHDR irradiations. The BCTs were validated as monitoring devices by verifying beam parameters consistency between nominal values and measured values, determining the relationship between the charge measured and the absorbed dose, and checking the short- and long-term stability of the charge-absorbed dose ratio.
The beam parameters measured by the BCTs coincide with the nominal values. The charge-dose relationship was found to be linear and independent of pulse width and frequency. Short- and long-term stabilities were measured to be within acceptable limits.
The BCTs were implemented and validated on a pulsed electron beam medical LINAC, thus improving current dosimetric procedures and allowing for a more complete analysis of beam characteristics. BCTs were shown to be a valid method for beam monitoring for UHDR (and therefore FLASH) experiments.
PID Serval
serval:BIB_670F6488D9CD
PMID
Open Access
Oui
Date de création
2021-10-12T08:00:39.341Z
Date de création dans IRIS
2025-05-20T15:14:23Z
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Nom
Oesterle_2021.pdf
Version du manuscrit
preprint
Licence
https://creativecommons.org/licenses/by/4.0
Taille
1.07 MB
Format
Adobe PDF
PID Serval
serval:BIB_670F6488D9CD.P001
Somme de contrôle
(MD5):036eaf7d02d093235efeae240e740345