Abstract
We propose a simple, efficient, and accurate analytical model for calculating the energy efficiency of a granular double-layer X-ray scintillator with a diffuse reflection layer, based on the first-order approximation of the radiative transfer equation by considering boundary conditions and exponential characteristics. Using the analytical model, we successfully analyze the characteristics of the double-layer X-ray scintillator, such as diffuse reflectance, transmittance, collection efficiency, and energy efficiency. We also suggest a design strategy for the high-energy-efficiency X-ray double-layer scintillator considering high diffuse reflectance and satisfaction of the target spatial resolution. Using the X-ray absorption ratio and the collection efficiency of the double-layer scintillator, the energy efficiency of the double-layer X-ray scintillator is calculated to achieve the best performance in terms of image brightness. Through calculation, we obtain the design of a double-layer X-ray scintillator with an energy efficiency of 8.7% with a computation time of less than a second.
Original language | English |
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Pages (from-to) | 21642-21655 |
Number of pages | 14 |
Journal | Optics Express |
Volume | 26 |
Issue number | 17 |
DOIs | |
Publication status | Published - 2018 Aug 20 |
Bibliographical note
Publisher Copyright:© 2018 Optical Society of America.
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics