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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2021.2
- 수록면
- 229 - 229 (1page)
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Modern x-ray imaging techniques require more finer resolution and dose reduction for early diagnosis of diseases and safety regulation respectively. Currently available x-ray sources are based on thermionic electron emitters which emit electron when they are heated over 2000 K. Therefore, the emitters are susceptible to oxidation and it degrades x-ray tube lifespan. In addition, the emitted electron beam has wide beam divergence hence, additional electrodes are required to focus the beam on anode target. Besides fast switching of x-ray radiation from thermionic emitters is impossible due to its inherent electron emission mechanism.
Field emission phenomena and the principles are intensively studied due to the its extraordinary electrical properties. Among them, vertically align carbon nanotubes (VACN^_@span style=color:#999999 ^_# ... ^_@/span^_#^_@a href=javascript:; onclick=onClickReadNode('NODE10548878');fn_statistics('Z354','null','null'); style='color:#999999;font-size:14px;text-decoration:underline;' ^_#전체 초록 보기^_@/a^_#
Field emission phenomena and the principles are intensively studied due to the its extraordinary electrical properties. Among them, vertically align carbon nanotubes (VACN^_@span style=color:#999999 ^_# ... ^_@/span^_#^_@a href=javascript:; onclick=onClickReadNode('NODE10548878');fn_statistics('Z354','null','null'); style='color:#999999;font-size:14px;text-decoration:underline;' ^_#전체 초록 보기^_@/a^_#
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