CALIBRATION OF GAFCHROMIC EBT3 FILM FOR DOSIMETRY OF SCANNING PROTON PENCIL BEAM (PBS)

Gafchromic EBT3 films are applied in proton radiotherapy for 2D dose mapping because they demonstrate spatial resolution well below 1 mm. However, the film response must be corrected in order to reach the accuracy of dose measurements required for the clinical use. The in-house developed AnalyseGafc...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Radiation protection dosimetry 2018-08, Vol.180 (1-4), p.324-328
Hauptverfasser:	Krzempek, D, Mianowska, G, Bassler, N, Stolarczyk, L, Kopec, R, Sas-Korczynska, B, Olko, P
Format:	Artikel
Sprache:	eng
Schlagworte:	Calibration Dose-Response Relationship, Radiation Film Dosimetry - instrumentation Film Dosimetry - methods Humans Linear Energy Transfer Protons - therapeutic use Radiation Dosage Radiotherapy, Intensity-Modulated - instrumentation Radiotherapy, Intensity-Modulated - methods
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Gafchromic EBT3 films are applied in proton radiotherapy for 2D dose mapping because they demonstrate spatial resolution well below 1 mm. However, the film response must be corrected in order to reach the accuracy of dose measurements required for the clinical use. The in-house developed AnalyseGafchromic software allows to analyze and correct the measured response using triple channel dose calibration, statistical scan-to-scan fluctuations as well as experimentally determined dose and LET dependence. Finally, the optimized protocol for evaluation of response of Gafchromic EBT3 films was applied to determine 30 × 40 cm2 dose profiles of the scanning therapy unit at the Cyclotron Centre Bronowice, CCB in Krakow, Poland.
ISSN:	0144-8420 1742-3406 1742-3406
DOI:	10.1093/rpd/ncx304