Neutral beam tomography using maximum entropy method = 엔트로피 최대화 방법을 이용한 중성입자빔 토모그라피

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A tomography algorithm to maximize the entropy of image using lagrangian multiplier technique and conjugate direction line minimization method was used for the reconstruction of 2D spatial distribution of intense neutral beams of KSTAR NBI (Korea Superconducting Tokamak Advanced Research Neutral Beam Injector). A possible detection system was modeled by system geometry parameters and numerical simulations were done to test the reconstruction fidelity of simulated beam profiles. First of all, we simulated with changes of number of cameras and 11 cameras were adopted from this simulation. The simulations with changes of noises, horizontal divergences, and power rates were also done and their relationships with reconstruction fidelity were shown.
Advisors
Cho, Gyu-Seongresearcher조규성researcher
Description
한국과학기술원 : 원자력공학과,
Publisher
한국과학기술원
Issue Date
1998
Identifier
133486/325007 / 000963460
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 원자력공학과, 1998.2, [ iii, 50 p. ]

Keywords

Sparse data; Neutral beam; Maximum entropy; Image reconstruction; Tomography; Tokamak; 토카막; 데이터 부족; 중성입자빔; 엔트로피 최대화; 영상 재구성; 토모그라피

URI
http://hdl.handle.net/10203/49383
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=133486&flag=dissertation
Appears in Collection
NE-Theses_Master(석사논문)
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