Fabrication of fiber-optic radiation sensor tips with inorganic scintillator for remote sensing of X or γ-ray

In this study, fiber-optic radiation sensor tips are fabricated for remote sensing of X or γ-ray with inorganic scintillators and plastic optical fiber. The visible range of light from the inorganic scintillator that is generated by radiation source is guided by the plastic optical fiber and is measured by optical detector and power-meter. Two kinds of sensor tips are designed and fabricated such as film type and powder type. Many kinds of inorganic scintillators are used to fabricate both sensor tips, and the different wavelength of emitting lights from them are measured to determine the optimal inorganic scintillator which has maximum light output. As a radiation source, X-ray generator and Ir-192 are selected to test performance of sensor tips. Additionally, fiber-optic radiation sensor tip with organic scintillating fiber is also fabricated and the optical power is measured using the same radiation sources as mentioned above, with inorganic scintillators such as film and powder type briefly.