Characteristics of Gafchromic XRQA2 films for kV image dose measurement.

  title={Characteristics of Gafchromic XRQA2 films for kV image dose measurement.},
  author={Tawfik G Giaddui and Yunfeng Cui and James Galvin and Wenzhou Chen and Yan Yu and Ying Xiao},
  journal={Medical physics},
  volume={39 2},
PURPOSE In this study, the relevant characteristics of the new Gafchromic XRQA2 film for its application in measuring kV cone beam computed tomography (CBCT) image doses were thoroughly investigated. METHODS The film was calibrated free in air to air kerma levels between 0 and 9 cGy using 120 kVp photon beams produced by the x-ray volume imager. Films were scanned using transmission and reflection scanning modes with the Epson Expression 10000 XL flat-bed document scanner. The impact of film… CONTINUE READING


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