PENDEKATAN ALGORITMA UNTUK EVALUASI DOSIS RADIASI DENGAN TLD-900 BARC PADA PENGUKURAN RADIASI ENERGI RENDAH

Abstract

Accurate radiation dose evaluation for radiation workers is crucial to determine the radiation dose received from exposure. Using passive dosimeters such as TLD-900 can assist in monitoring and controlling radiation exposure by evaluating accumulated dose readings over a specific period. Due to its utilization in diverse radiation fields, the dose evaluation method should be able to differentiate the energy range employed. Energy dependence can pose a challenge in reading the received dose, particularly in the case of low-energy X-ray usage. Therefore, this study aims to develop an algorithm for individual equivalent dose evaluation Hp(10) in low-energy (<20 KeV) usage. The data will be obtained from the Nuclear Agency of Malaysia's Secondary Standard Dosimetry Laboratory (SSDL), including various ISO narrow series X-ray sources and several radioactive sources such as Cs-137, Co-60, Sr-90, Kr-85, and Pm-147. The evaluation method will involve a trumpet curve and ANSI bias plot, enabling an assessment of the performance of the developed algorithm. Ultimately, the algorithm will be used for long-term dose evaluation intercomparisons in low-dose reviews. The low-energy energy evaluation algorithm for equivalent doses has successfully been conducted. The algorithm performs very well in distinguishing energy types using the parameter r12. In contrast, the low-energy dose evaluation algorithm encounters difficulties due to the low-energy characteristics in energy deposition, which are similar for each element D. Keywords: Algorithm,radiation dose evaluation, TLD, Low Energy.