Performance of CaF2:Mn dosimeters for determining entrance surface dose (ESD) in diagnostic radiology

AŞLAR E., Kafadar V. E.

Radiation Measurements, cilt.183, 2025 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 183
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.radmeas.2025.107419
  • Dergi Adı: Radiation Measurements
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Chemical Abstracts Core, Compendex, INSPEC, Pollution Abstracts
  • Anahtar Kelimeler: CaF2:Mn, Diagnostic radiology, Energy dependence, ESD, TLD-400
  • Ankara Üniversitesi Adresli: Evet

Özet

The performance of CaF2:Mn (TLD-400) as dosimeters for dose measurements in diagnostic radiology including for entrance surface dose measurements (ESD) was investigated. Specifically, energy dependence, dose response, and repeatability properties of the thermoluminescence (TL) signal of the phosphor in diagnostic energy range were examined. The TL response of the dosemeter in the diagnostic energy range is about a factor of 10 more than its response to 137Cs (662 keV). Irrespective of the energy of the X-rays used for CaF2:Mn irradiation, TL response increased linearly with dose. Variation in TL responses of a chip of CaF2:Mn reused seven times was within 5%. Entrance surface dose (ESD) measured with CaF2:Mn are in agreement with those measured using TLD-100. The dosimeter's characteristics show that it can be used for both personnel and patients' dosimetry in diagnostic radiology.