Development of microfocus x-ray source based on CNT emitter for intraoperative specimen radiographic system

Amar Prasad Gupta; Seung Jun Yeo; Jaekyu Jang; Jaeik Jung; Jinho Choi; Jongmin Lim; Wooseob Kim; Junyoung Park; Hangyeol Park; Moon Shik Chae; Yeong Heum Yeon; Jeung Sun Ahn; Seung Hoon Kim; Namkug Kim; Beomseok Ko; Jehwang Ryu

doi:10.1117/12.2582087

15 February 2021 Development of microfocus x-ray source based on CNT emitter for intraoperative specimen radiographic system

Amar Prasad Gupta, Seung Jun Yeo, Jaekyu Jang, Jaeik Jung, Jinho Choi, Jongmin Lim, Wooseob Kim, Junyoung Park, Hangyeol Park, Moon Shik Chae, Yeong Heum Yeon, Jeung Sun Ahn, Seung Hoon Kim, Namkug Kim, Beomseok Ko, Jehwang Ryu

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Proceedings Volume 11595, Medical Imaging 2021: Physics of Medical Imaging; 115953J (2021) https://doi.org/10.1117/12.2582087
Event: SPIE Medical Imaging, 2021, Online Only

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Abstract

A microfocus X-ray source based on carbon nanotube (CNT) emitter grown by chemical vapor deposition is presented in this paper. The microfocus X-ray source is developed for the intraoperative specimen radiographic system, which can be used inside the operation theatre and helps reducing the surgery time during breast conserving surgery by confirming the extent of margin on specimen. This high focusing X-ray source is realized by growing CNTs on pointed structures. The field emission characteristic shows that maximum anode current of 1mA, which corresponds to a maximum emission current density of 500 mA/cm2 from the CNT-based point emitter. The optimized parameter for the assembly of electron gun was achieved by using commercially available CST simulation software. Consequently, this microfocus X-ray tube could produce X-ray image of multilayer printed circuit board showing fine lines of integrated circuit.

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Amar Prasad Gupta, Seung Jun Yeo, Jaekyu Jang, Jaeik Jung, Jinho Choi, Jongmin Lim, Wooseob Kim, Junyoung Park, Hangyeol Park, Moon Shik Chae, Yeong Heum Yeon, Jeung Sun Ahn, Seung Hoon Kim, Namkug Kim, Beomseok Ko, and Jehwang Ryu "Development of microfocus x-ray source based on CNT emitter for intraoperative specimen radiographic system", Proc. SPIE 11595, Medical Imaging 2021: Physics of Medical Imaging, 115953J (15 February 2021); https://doi.org/10.1117/12.2582087

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