基于微结构的闪烁光纤、光纤阵列及发光闪烁体
By setting an array of air holes with gradient refractive index on the scintillation fiber and the luminescent scintillator, the problems of total internal reflection and propagation divergence of scintillation photons at the interface are solved, achieving efficient photon extraction and uniform transmission, and improving the performance of the detection system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI
- Filing Date
- 2022-03-11
- Publication Date
- 2026-07-17
AI Technical Summary
In existing scintillators, the scintillation photons undergo total internal reflection at the exit interface, causing the photons to be confined inside. Furthermore, the scintillation light tends to diverge during propagation, reducing the efficiency of the detection system and the imaging quality.
An array of outer and inner air holes is set on the scintillation fiber and the luminescent scintillator. The diameter of the inner air holes gradually decreases from the center to the outside, forming a low-high-low gradient refractive index distribution, which controls the directionality of light transmission and avoids multiple reflections.
It achieves flexible transmission and uniform control of scintillation light, improves the efficiency and imaging quality of the detection system, and avoids the dispersion of time characteristics.
Smart Images
Figure CN116774267B_ABST