• 作者： 周晟；劉宗平
• 作者服務機構： 中正理工學院物理學系; 輔仁大學物理學系
• 中文摘要： 一種新的記號光柵（Coded Aperture )稱之'簡化傅氏光柵' （Simplified Fourier Aperture )的成像系統 已被描述出來，它是利用固定頻率的正弦光?在物體與偵測器間做線性平移而取得被照物體的構造形譜（Object Spectrum) 進而成像。物體成像過程方法及其橫截面斷層攝影能力也一併討論。
• 英文摘要： A new time-varying coded aperture called the 'Simplified Fourier Aperture' is described. It is a single sinusoidal grating which is translated between the source object plane and the detector plane. To the detector, the aperture behaves as an adjustable grating that scans the object over a two dimensional frequency space by changing its orientation and position. Because of its simple construction, it can replace the Fourier aperture as a good gamma-ray imaging device in nuclear medicine. The image reconstruction algorithm and the tomographic image capabilities are discussed.
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