2025年"核理安邦“联合博士生学术论坛

基于逆康普顿散射源的高能相衬成像研究

Not scheduled

1h

Location: 清华大学核能与新能源技术研究院

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Speaker

Jiayi Sun (Tsinghua university)

摘要

本研究提出了一种基于伽马射线相衬成像的金属材料混合仿真方法——定向宏波前（DMWF）方法。该方法结合了蒙特卡罗模拟和波光学传播技术，旨在提高高能伽马射线成像的计算效率与精度。通过一系列仿真实验验证，DMWF方法在不同能量范围内表现出优良的能量适应性，并显著提高了计算效率，尤其在高能辐射条件下。实验表明，DMWF方法能够有效地减少计算复杂度和存储需求，同时高质量模拟的相位对比成像，具有广泛的应用前景，尤其在工业检测和医学成像领域。

Abstract

This study presents a hybrid simulation method for gamma-ray phase contrast imaging of metallic materials, called the Directional Macro Wavefront (DMWF) method. Combining Monte Carlo simulation and wave optics propagation techniques, the method aims to improve both the computational efficiency and accuracy of high-energy gamma-ray phase contrast imaging. A series of simulations were conducted to validate the effectiveness of the DMWF method, which demonstrated excellent energy adaptability across a wide range of energy levels and a significant improvement in computational efficiency, especially under high-energy radiation conditions. The results show that the DMWF method can effectively reduce computational complexity and storage requirements while providing high-quality simulation. This method holds great potential for applications, particularly in industrial inspection and medical imaging.