Plastic scintillator-based dosimeters for ultra-high dose rate (UHDR) electron radiotherapy.
Phys Med
; 121: 103360, 2024 May.
Article
de En
| MEDLINE
| ID: mdl-38692114
ABSTRACT
This paper reports the development of dosimeters based on plastic scintillating fibers imaged by a charge-coupled device camera, and their performance evaluation through irradiations with the electron Flash research accelerator located at the Centro Pisano Flash Radiotherapy. The dosimeter prototypes were composed of a piece of plastic scintillating fiber optically coupled to a clear optical fiber which transported the scintillation signal to the readout systems (an imaging system and a photodiode). The following properties were tested linearity, capability to reconstruct the percentage depth dose curve in solid water and to sample in time the single beam pulse. The stem effect contribution was evaluated with three methods, and a proof-of-concept one-dimensional array was developed and tested for online beam profiling. Results show linearity up to 10 Gy per pulse, and good capability to reconstruct both the timing and spatial profiles of the beam, thus suggesting that plastic scintillating fibers may be good candidates for low-energy electron Flash dosimetry.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Matières plastiques
/
Dosimétrie en radiothérapie
/
Comptage de scintillations
/
Électrons
/
Dosimètres
Langue:
En
Journal:
Phys Med
Sujet du journal:
BIOFISICA
/
BIOLOGIA
/
MEDICINA
Année:
2024
Type de document:
Article
Pays d'affiliation:
Italie
Pays de publication:
Italie