title: Thermoluminescence responses of the Yb- and Yb-Tb-doped SiO2 optical fibers to 6-MV photons.
abstract: Characteristics of the thermoluminescence (TL) responses of Yb- and Yb-Tb-doped optical fibers irradiated with 6MV photons are reported. The concentration of Yb in the Yb-doped optical fiber was 0.26mol%; the concentrations of Yb and Tb in the Yb-Tb-doped optical fiber were 0.62 and 0.2mol%, respectively. The TL dose responses are linear in the dose range 0.5-4Gy. The radiation sensitivity of the Yb-Tb material is almost two orders of magnitude higher than the sensitivity of the material doped with Yb alone.
authors: Department of Physics, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
authors: M H
authors: MH
authors: Sahini
authors: Department of Physics, Rabigh College of Science & Arts, King Abdulaziz University, 21911 Rabigh, Saudi Arabia. Electronic address: hossain196977@yahoo.com.
authors: I
authors: I
authors: Hossain
authors: Department of Physics, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
authors: H
authors: H
authors: Wagiran
authors: Department of Physics, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
authors: M A
authors: MA
authors: Saeed
authors: Department of Oncology and Radiation Therapy, Hospital Sultan Ismail, Johor Barhu, Malaysia.
authors: H
authors: H
authors: Ali
keywords: Optical fiber; Silica; Thermoluminescence dosimetry