Evaluation of an efficient calibration protocol for use in radiochromic film dosimetry for photon beams

Akdeniz Y., YEĞİNGİL Z.

RADIATION PHYSICS AND CHEMISTRY, cilt.156, ss.31-37, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 156
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.radphyschem.2018.10.002
  • Dergi Adı: RADIATION PHYSICS AND CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.31-37
  • Anahtar Kelimeler: Radiochromic films, Gafchromic (TM) EBT3 films, Optic density, Transmission, Calibration function, Uncertainty, GAFCHROMIC(R) EBT FILM, ENERGY-DEPENDENCE, DOSE MEASUREMENTS, VERIFICATION
  • Çukurova Üniversitesi Adresli: Evet

Özet

This study aimed to investigate the adequacy of the response quantities and the calibration functions utilized in Gafchromic (TM) film dosimetry. EBT3 Gafchromic (TM) film pieces were irradiated to the deemed dose values between 0 and 3 Gy with the beam quality of 6 MV. Response quantities (net change in transmittance (net Delta T) and net change in optic density (net Delta OD)) were calculated. To determine whether the response quantities and different function forms were acceptable, they were tested using the dose uncertainty analysis techniques. An accurate and precise calibration protocol suggesting a new logarithmic functional form and its superior performance with use of net Delta T was demonstrated.