Particle-In-Cell Simulations of Electron Focusing for a Compact X-Ray Tube Comprising CNT-Based Electron Source and Transmission Type Anode

Avachat, Ashish; Tucker, Wesley W.; Giraldo, Carlos Henry Castano; Lee, Hyoung-Koo

doi:10.1109/ted.2019.2891352

Cited by 3 publications

(1 citation statement)

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“…The emitted electron beam is targeted to a reflection-type metal, the anode, which generates an Xray beam in the direction perpendicular to the direction of the electron beam. 12 However, slow response of thermionic processes prevents filament-based X-ray systems from being fully digitalized. The slow response of thermionic emitters is due to the lag time associated with the time required to preheat the filament.…”

Section: Introductionmentioning

confidence: 99%

A feasibility study of a portable intraoperative specimen imaging X‐ray system based on carbon nanotube field emitters

Gupta

Yeo²,

Mativenga

et al. 2021

Int J Imaging Syst Tech

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When breast cancer is surgically removed, a rim of normal tissue surrounding the tumor is also removed. This rim of normal tissue is called a margin and is studied by a pathologist to determine whether or not all tumor was removed. The pathologist achieves this by cutting the surgically removed tissue into thin slices and observing each slice under a microscope. This process is time-consuming. Here, we investigate the feasibility of using a portable carbon nanotube (CNT)-based X-ray system for in situ detection of the presence of tumor cells in the surgical margin. Using the proposed technique, we successfully obtain X-ray images, which clearly show cancer masses and microcalcifications. This feasibility study shows that portable CNT-based X-ray systems are promising candidates for next-generation in situ pathological examinations.

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Section: Introductionmentioning

confidence: 99%