Coded-aperture imaging system for reconstructing tomograms of human myocardium

Ohyama, Nagaaki; Endo, Tomoaki; Honda, Toshio; Tsujiuchi, Jumpei; Matumoto, Toru; Iinuma, Takeshi; Ishimatsu, Kenji

doi:10.1364/ao.23.003168

Cited by 2 publications

(1 citation statement)

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“…The second class of telescopes utilizes the spatial multiplexing that can be obtained either from using pairs of widely separated collimator grids to form modulation patterns of the incident v-rays onto a position sensitive detector (PSD), or with one or more arrays of transparent and opaque elements, whose shadow projected along the flux direction is intercepted by a PSD. In the first case we refer to Fourier-transform imagers (Chou and Barrett, 1978;Palmer and Prince, 1987), while the multiplexing instruments of the second kind are known as 'coded mask systems', and have already been used successfully in several other fields: for monitoring confinement fusion experiments Yamanaka et al, 1984), in nuclear medicine, particularly in tomography (Cannon and Knoll et aL, 1984, Ohyama et al, 1984, in chemical spectroscopy (Harwit et aL, 1974;Plankey et al, 1974) and in optical image processing (Oliver, 1976).…”

Section: Introductionmentioning

confidence: 99%

Coded aperture imaging in X- and gamma-ray astronomy

Caroli¹,

Stephen²,

Cocco³

et al. 1987

Space Sci Rev

376

216

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Coded aperture imaging in high energy astronomy represents an important technical advance in instrumentation over the full energy range from X-to y-rays and is playing a unique role in those spectral ranges where other techniques become ineffective or impracticable due to limitations connected to the physics of interactions of photons with matter. The theory underlying this method of indirect imaging is of strong relevance both in design optimization of new instruments and in the data analysis process. The coded aperture imaging method is herein reviewed with emphasis on topics of mainly practical interest along with a description of already developed and forthcoming implementations.

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