Stationary multi X-ray source system with carbon nanotube emitters for digital tomosynthesis

Medical Imaging 2021: Physics of Medical Imaging Pub Date : 2021-02-15 DOI:10.1117/12.2582280

Junyoung Park, A. Gupta, WooSeob Kim, Jong-Wook Lim, S. Yeo, Dongkeun Kim, Chang-Won Jeong, K. Yoon, Seungryong Cho, J. Ahn, M. Mativenga, J. Ryu

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引用次数: 3

Abstract

In order to diagnose diseases in complex areas such as the chest, an X-ray system of a suitable type is required. Chest tomosynthesis, which acquires a reconstructed 3D image by taking X-ray images from various angles, is one of the best image acquisition technologies in use. However, one major disadvantage of tomosynthesis systems with a single X-ray source is the motion blur which occurs when the source moves or rotates to change the acquisition angle. To overcome this, we report a stationary digital tomosynthesis system, which uses 85 field-emission type X-ray sources based on carbon nanotubes (CNTs). By using CNT-based electronic emitters, it is possible to miniaturize and digitize the X-ray system. This system is designed such that a maximum of 120 kV can be applied to the anode to obtain chest X-ray images. The field emission characteristics of the CNT-based emitters are measured, and X-ray images were obtained using the stationary multi X-ray source system, confirming its applicability to chest Tomosynthesis.

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固定式多x射线源系统与碳纳米管发射器用于数字断层合成

为了诊断诸如胸部等复杂部位的疾病，需要一种合适类型的x射线系统。胸部断层合成是目前使用的最好的图像采集技术之一，它通过拍摄不同角度的x射线图像来获得重建的三维图像。然而，具有单一x射线源的断层合成系统的一个主要缺点是，当源移动或旋转以改变采集角度时，会发生运动模糊。为了克服这个问题，我们报道了一个固定的数字断层合成系统，该系统使用85个基于碳纳米管(CNTs)的场发射型x射线源。通过使用基于碳纳米管的电子发射器，可以使x射线系统小型化和数字化。该系统的设计是这样的，最大120千伏可以应用到阳极，以获得胸部x射线图像。测量了基于碳纳米管的发射体的场发射特性，并使用固定式多x射线源系统获得了x射线图像，证实了其在胸部断层合成中的适用性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Medical Imaging 2021: Physics of Medical Imaging

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