Application of Gafchromic film in the dosimetry of an intravascular brachytherapy source.
The methodology of brachytherapy source dosimetry with Gafchromic MD 55-2 film (ISP Technologies, Inc.) is examined with an emphasis on the nonlinearity of the optical density-dose relation within the dynamic dose range, the radial distance-dependent measurement uncertainty, and the format of data presentation. The specific source chosen for this study was a Checkmate (Cordis Corporation) intravascular brachytherapy system. The two-dimensional dose distribution around the source was characterized by a comprehensive analysis of measurement uncertainties. A comparative analysis of the dosimetric data from the vendor and from the scientific literature showed a substantial consistency of the information available for the Checkmate source. Our two-dimensional dosimetric data for the Checkmate source trains is presented in the form of measured along and away dose tables.
Song
Haijun
H
Department of Therapeutic Radiology, Yale University School of Medicine, 20 York Street, New Haven, Connecticut 06443, USA. haijun.song@duke.edu
Roa
D Eduardo
DE
Yue
Ning
N
d'Errico
Francesco
F
Chen
Zhe
Z
Nath
Ravinder
R
D001808:Blood Vessels / Q000528:radiation effects*; D001918:Brachytherapy / Q000379:methods*; D002138:Calibration; D005373:Film Dosimetry / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D007496:Iridium Radioisotopes / Q000627:therapeutic use; D011829:Radiation Dosage; D011874:Radiometry; D011879:Radiotherapy Dosage; D014962:X-Ray Film
D007496:Iridium Radioisotopes