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Verification of the dosimetric properties of a new scintillation detector: Exradin W1
| Revista de Física Médica
Verification of the dosimetric properties of a new scintillation detector: Exradin W1
Authors
Sheila Calvo Carrillo
Alejandro García Romero
Esther Millán Cebrián
David Villa Gazulla
Verónica Alba Escorihuela
Pablo Ortega Pardina
Araceli Hernández Vitoria
Miguel Canellas Anoz
Abstract
The purpose of this work is to verify the properties of a new scintillation detector. The Exradin W1 Scintillator of Standard Imaging is a plastic scintillating fiber detector designed to dosimetry for megavoltage beams in radiotherapy. Its most important documented characteristics are: high spatial resolution, near water equivalence, angular independence, temperature independence and energy independence (within the MeV range).
Different measurements were performed for 6 MV and 15 MV photon beams in an ONCOR Impression Plus linac (Siemens Medical Solutions). Percentage depth dose, output factors and dose delivered to a point in intensity modulated radiation therapy treatment plan were analyzed and compared with ionization chamber and diode measurements. As a result we found that scintillator performance is similar to other detectors. In conclusion, the Exradin W1 can be used in dosimetry as a high spatial resolution detector.
