DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Cho, Sung-Oh | - |
dc.contributor.advisor | 조성오 | - |
dc.contributor.author | Ihsan, Aamir | - |
dc.contributor.author | 이산, 아미르 | - |
dc.date.accessioned | 2011-12-14T08:06:32Z | - |
dc.date.available | 2011-12-14T08:06:32Z | - |
dc.date.issued | 2010 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=418699&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/49022 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 원자력및양자공학과, 2010.2, [ xi, 82 p. ] | - |
dc.description.abstract | A detailed study of the designing of an X-ray target is enclosed with an emphasis on maximizing the brightness of X-rays produced. The research is aimed at the minimization of the focal spot size by virtue of the geometric parameters of the transmission-type targets. Two different configurations of the transmission-type target have been considered. X-ray emissions from these targets were studied in detail using Monte-Carlo simulation code MCNP5. In the first part, parameters of a laminated configuration of transmission-type target have been optimized for a microfocus X-ray tube to produce high brightness of X-rays for a broad range of electron energies from 30 keV to 150 keV. In the second part, a novel concept is put forth to develop a microfocus X-ray tube based on a microstructured X-ray target that is irradiated with a nonfocused electron beam. The calculations revealed that the microstructured targets are quite capable of minimizing the effective X-ray spot sizes compared with those having a laminated configuration. Based on the simulation results of X-ray brightness, optimum geometric parameters were derived for the microstructured targets with different morphologies. The combination of the micro-structured targets and nonfocused electron beam allows the miniaturization of a microfocus X-ray tube by eliminating the needs for massive and complex focusing devices. Moreover, limitations of the maximum allowable electron beam currents for the stable operation of the X-ray targets are presented. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | x-ray target | - |
dc.subject | microfocus | - |
dc.subject | x-ray tube | - |
dc.subject | transmission target | - |
dc.subject | 투과용 타겟 | - |
dc.subject | 엑스선 타겟 | - |
dc.subject | 마이크로포커스 | - |
dc.subject | 엑스선 튜브 | - |
dc.title | Design of X-ray targets for high-brightness microfocus X-ray tube | - |
dc.title.alternative | 고휘도 마이크로포커스 엑스선관을 위한 엑스선 타겟 설계 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 418699/325007 | - |
dc.description.department | 한국과학기술원 : 원자력및양자공학과, | - |
dc.identifier.uid | 020054535 | - |
dc.contributor.localauthor | Ihsan, Aamir | - |
dc.contributor.localauthor | 이산, 아미르 | - |
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