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白射线计算机断层扫描使用功率发光二极管和自波长选择

Reina Sato¹, Eiichi Sato², Yuichi Sato³

¹Department of Food Production and Environmental Management, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-0066, Japan.

The Review of scientific instruments

|October 22, 2025

概括

一种新的白射线计算机断层扫描仪 (WRCT) 扫描仪被开发用于成像物体,包括生物医学样本. 该系统使用白色发光二极管 (LED) 和光二极管 (PD) 模块进行高对比度成像.

科学领域:

医疗成像医学成像
生物医学工程生物医学工程
物理物理学物理

背景情况:

传统的计算机断层扫描 (CT) 通常需要对比剂或特定的辐射源.
需要适合微妙的生物医学样本的非侵入性成像技术.

研究的目的:

开发和评估用于对象成像的白射线计算机断层扫描仪 (WRCT).
评估使用白色发光二极管 (LED) 源用于CT应用的可行性.
为了实现生物医学样本的高对比成像.

主要方法:

使用白功率LED和高灵敏度光二极管 (PD) 模块构建了一个WRCT扫描仪.
一个石墨聚合器形成了线束,一个隔膜控制的空间分辨率 (∼0.7 × 0.7 mm2).
对象成像是通过互换转换 (0.1毫米步骤) 和旋转 (0.5°步骤) 进行的.

主要成果:

在WRCT系统成功地成像了子血液样本在高对比度的乙烯基管中.
该系统利用来自白色LED源的可见光子和近红外光子.
空间分辨率主要取决于探测器的隔膜直径.

结论:

开发的WRCT扫描仪是一个可行的工具,用于对象的高对比度成像,包括生物医学样本.
使用白色LED源为CT应用提供了一个有前途的替代方案.
这种技术有可能在生物和材料科学背景下进行非侵入性成像.

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