Energy dependence of three passive solid detectors on low energy X-ray

Objective: To assess the feasibility of ESD measurements in the mammography by the comparative study of energy dependence of the three passive solid detectors on low energy X-ray. Methods: Two thermoluminescent TL) detectors (LiF (Mg, Ti) and LiF (Mg, Cu, P) and one optically stimulated luminescence (OSL) detector (Al₂O₃ : C) were irradiated for the same air kerma by ten kinds of beam quality between 25-40 kV in a Mo/Mo low energy X-ray generator,respectively. Results: The energy dependences of TL and OSL were 25% and 11% between 25-40 kV, respectively. Conclusions: considerable potential for OSL detector can be used in routine quality control and ESD measurements in the mammography. (authors)