Fabrication of Glass Sealed X-ray Tube with High Performance Carbon Nanotube Electron Beam (C-Beam)

2016 ◽  
Vol 16 (11) ◽  
pp. 12059-12062 ◽  
Author(s):  
Ji Hwan Hong ◽  
Jung Su Kang ◽  
Kyu Chang Park
Keyword(s):  
Electron Beam ◽  
Carbon Nanotube ◽  
High Performance ◽  
X Ray

scholarly journals High-Performance Hybrid Bismuth–Carbon Nanotube Based Contrast Agent for X-ray CT Imaging

2017 ◽  
Vol 9 (7) ◽  
pp. 5709-5716 ◽  
Author(s):  
Mayra Hernández-Rivera ◽  
Ish Kumar ◽  
Stephen Y. Cho ◽  
Benjamin Y. Cheong ◽  
Merlyn X. Pulikkathara ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Contrast Agent ◽  
High Performance ◽  
Ct Imaging ◽  
X Ray

Extracting Low Energy X-Ray Peaks From EDS and WDS Spectra

1998 ◽  
Vol 4 (S2) ◽  
pp. 218-219
Author(s):  
Robert L. Myklebust ◽  
Dale E. Newbury
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
High Resolution ◽  
High Performance ◽  
Incident Beam ◽  
Low Energy ◽  
Nanometer Scale ◽  
X Ray ◽  
Chemical Effects ◽  
Scanning Electron

Interest in electron beam x-ray microanalysis with low incident beam energies, defined arbitrarily as 5 keV and below, has been greatly stimulated in recent years by the development of the high performance field emission gun scanning electron microscope (FEG-SEM), which can produce a nanometer-scale probe with sufficient current to operate with both energy dispersive (EDS) and wavelength dispersive (WDS) spectrometers. Microanalysis in this regime requires the analyst to confront new spectrometry problems that are not typically encountered, or that can be safely ignored, when operating with conventional beam energies, 10 keV or greater. With low energy operation, the choice of atomic shells that can be accessed is restricted, forcing the analyst to make use of shells that have low fluorescence yields for intermediate and high atomic number elements, and possibly strong chemical effects, which are evident with high resolution x-ray spectrometry.

scholarly journals Single-step process to improve the mechanical properties of carbon nanotube yarn

2018 ◽  
Vol 9 ◽  
pp. 545-554 ◽  
Author(s):  
Maria Cecilia Evora ◽  
Xinyi Lu ◽  
Nitilaksha Hiremath ◽  
Nam-Goo Kang ◽  
Kunlun Hong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Carbon Fibers ◽  
Photoelectron Spectroscopy ◽  
High Performance ◽  
Single Step ◽  
Beam Irradiation ◽  
X Ray ◽  
Yarn Strength ◽  
Irradiation Process

Carbon nanotube (CNT) yarns exhibit low tensile strength compared to conventional high-performance carbon fibers due to the facile sliding of CNTs past one another. Electron beam (e-beam) irradiation was employed for in a single-step surface modification of CNTs to improve the mechanical properties of this material. To this end, CNT yarns were simultaneously functionalized and crosslinked using acrylic acid (AA) and acrylonitrile (AN) in an e-beam irradiation process. The chemical modification of CNT yarns was confirmed by X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and scanning electron microscopy (SEM). The best improvement in mechanical properties was achieved on a sample treated with an aqueous solution of AA and subsequent irradiation. CNT yarn treatment with AA enhanced the strength (444.5 ± 68.4 MPa) by more than 75% and the modulus (21.5 ± 0.6 GPa) by more than 144% as compared to untreated CNT yarn (strength 251 ± 26.5 MPa and modulus 8.8 ± 1.2 GPa).

P-66: Crystallized Thin Film using the Carbon Nanotube Electron Beam (C-Beam ) for High Performance Thin Film Transistor

2015 ◽  
Vol 46 (1) ◽  
pp. 1382-1385
Author(s):  
Ha Rim Lee ◽  
Su Woong Lee ◽  
Jung Su Kang ◽  
Ji Hwan Hong ◽  
Callixte Shikili ◽  
...  
Keyword(s):  
Thin Film ◽  
Electron Beam ◽  
Carbon Nanotube ◽  
High Performance ◽  
Thin Film Transistor
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