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Hexagonal Uniformly Redundant Arrays for Coded-Aperture Imaging

Finger, M. H. and Prince, T. A. (1985) Hexagonal Uniformly Redundant Arrays for Coded-Aperture Imaging. In: Proceedings of the 19th International Cosmic Ray Conference. Vol.3. Goddard Space Flight Center , Green Belt, MD, pp. 295-298.

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Uniformly redundant arrays are used in coded-aperture imaging, a technique for forming images without mirrors or lenses. This technique is especially important for the high energy x-ray and y-ray region above 20 keV. In this technique, a mask consisting of opaque (closed) and transparent (open) areas is placed between the photon sources to be imaged and a position sensitive detector or a detector array. Each source casts a shadow pattern of the mask or aperture onto the detector. This shadow pattern may be viewed as an encoded signal for that source direction. If each possible source code is unique, the detected composite of overlapping shadow patterns may be decoded to produce an image of the source distribution.

Item Type:Book Section
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URLURL TypeDescription
Prince, T. A.0000-0002-8850-3627
Additional Information:© NASA/STI. Provided by the NASA Astrophysics Data System. We acknowledge useful discussions with W. R. Cook. This work is supported in part by NASA grant NGR 05-002-160.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
NASANGR 05-002-160
Non-Subject Keywords:Apertures, Arrays, Coding, Imaging Techniques, Redundancy, Data Transmission, Hexagons, Lattices (Mathematics), Mathematical Models
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Space Radiation Laboratory1985-12
Record Number:CaltechAUTHORS:20140501-200010439
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45451
Deposited By: Joy Painter
Deposited On:02 May 2014 19:08
Last Modified:03 Oct 2019 06:30

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