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

被引：10
|
作者：
Krzempek, D. [1 ]
Mianowska, G. [2 ]
Bassler, N. [3 ]
Stolarczyk, L. [1 ]
Kopec, R. [1 ]
Sas-Korczynska, B. [4 ]
Olko, P. [1 ]
机构：
[1] Polish Acad Sci, Inst Nucl Phys, Krakow, Poland
[2] AGH Univ Sci & Technol, Krakow, Poland
[3] Stockholm Univ, Dept Phys, Med Radiat Phys, Stockholm, Sweden
[4] Maria Sklodowska Curie Mem Inst Oncol, Ctr Oncol, Krakow, Poland
来源：
RADIATION PROTECTION DOSIMETRY | 2018年 / 180卷 / 1-4期
关键词：
RADIOCHROMIC FILM;
D O I：
10.1093/rpd/ncx304
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Gafchromic EBT3 films are applied in proton radiotherapy for 2D dose mapping because they demonstrate spatial resolution well below 1mm. 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 x 40 cm(2) dose profiles of the scanning therapy unit at the Cyclotron Centre Bronowice, CCB in Krakow, Poland.
引用
收藏
页码：324 / 328
页数：5
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