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公开(公告)号：US20220399177A1
公开(公告)日：2022-12-15
申请号：US17853124
申请日：2022-06-29
发明人： Cheol Jin LEE , Han Bin GO , Sang Heon LEE
摘要： A method of manufacturing a CNT paste emitter in accordance with an exemplary embodiment of the present disclosure includes a process of mixing first CNT powder, graphite nanoparticles, SiC nanoparticles, Ni nanoparticles, a dispersant and distilled water and then performing a dispersion process by means of ultrasonication, a process of acquiring second CNT powder by filtering a solution dispersed during the dispersion process, a process of mixing the second CNT powder with a graphite binder and then preparing a CNT paste by means of ball milling, and a process of forming an interface layer on a metal or graphite substrate and then bonding the CNT paste.
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公开(公告)号：US20190306963A1
公开(公告)日：2019-10-03
申请号：US16371396
申请日：2019-04-01
发明人： Cheol Jin LEE , Sang Heon LEE , Jun Soo HAN , Han Bin GO
摘要： The present disclosure relates to an X-ray source apparatus and a control method of the X-ray source apparatus in which a cathode electrode and a gate electrode are arranged in an array form to enable matrix control, and, thus, it is possible to irradiate X-rays at an optimum dose for each position on the subject. Therefore, it is possible to suppress the irradiation of more X-rays than are needed to the subject. Also, it is possible to obtain a high-resolution and high-quality X-ray image. As such, two-dimensional matrix control makes it easy to control the dose of X-rays and makes it possible to uniformly irradiate X-rays to the subject. Therefore, it is possible to manufacture a high-resolution surface X-ray source with less dependence on the size of the focus of electron beams.
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