A method has been developed, based on thermoluminescent dosemeters (TLD), aimed at measuring the absorbed dose in tissue-equivalent phantoms exposed to thermal or epithermal neutrons, separating the contributions of various secondary radiation generated by neutrons. The proposed method takes advantage of the very low sensitivity of CaF2:Tm (TLD-300) to low energy neutrons and to the different responses to thermal neutrons of LiF:Mg,Ti dosemeters with different6Li percentage (TLD-100, TLD-700, TLD-600). The comparison of the results with those obtained by means of gel dosemeters and activation foils has confirmed the reliability of the method. The experimental modalities allowing reliable results have been studied. The glow curves of TLD-300 after gamma or neutron irradiation have been compared; moreover, both internal irradiation effect and energy dependence have been investigated. For TLD-600, TLD-100 and TLD-700, the suitable fluence limits have been determined in order to avoid radiation damage and loss of linearity. © Oxford University Press 2004; all rights reserved.
All Science Journal Classification (ASJC) codes
- Nuclear Energy and Engineering
- Radiology Nuclear Medicine and imaging
- Radiological and Ultrasound Technology
Gambarini, G., Klamert, V., Agosteo, S., Birattari, C., Gay, S., Rosi, G., & Scolari, L. (2004). Study of a method based on TLD detectors for in-phantom dosimetry in BNCT. Radiation Protection Dosimetry, 110(1-4), 631 - 636. https://doi.org/10.1093/rpd/nch109