对核石墨组件CT图像的环形工件减少方法的研究
Tianchen Zeng1,2,3, Jintao Fu1,2, Peng Cong1,2
1Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China.
Journal of X-ray science and technology
|February 20, 2025
概括
一种新的基于物理学的方法显著减少了高温气冷反应堆 (HTGR) 组件的计算机断层扫描 (CT) 图像中的环形物. 这增强了缺陷检测,并提高了对反应堆安全的非破坏性测试的可靠性.
科学领域:
- 材料科学 材料科学 材料科学
- 核工程 核工程是指核工程.
- 图像处理 图像处理
背景情况:
- 高温气冷反应器 (HTGR) 使用超过3000个碳/石墨元件,需要计算机断层扫描 (CT) 非破坏性测试.
- 由于检测器不均造成的CT图像中的环形工件,阻碍了这些关键部件的有效缺陷检测.
研究的目的:
- 开发和验证一种基于物理的方法来减少CT图像中的环形物件.
- 提高HTGR元件缺陷检查的准确性和可靠性.
主要方法:
- 提出了一种基于物理的环形工件减少技术,利用像素响应校正.
- 整合了对被扫描对象的先前知识,以提高文物校正的准确性.
主要成果:
- 实现了环总变化 (RTV) 的37.7%的降低,显著提高了图像质量.
- 在减少文物而保持图像细节方面,超越了传统和机器学习方法.
结论:
- 开发的方法有效地减轻了环形工件,提高了HTGR组件的缺陷检查性能.
- 这一进步对于确保核反应堆应用中非破坏性测试的安全性和可靠性至关重要.
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