Coded aperture imaging for fluorescent x-rays

Journal Article · Sun Jun 15 00:00:00 EDT 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4882337· OSTI ID:22308811

Haboub, A. ^[1]; MacDowell, A. A.; Marchesini, S.; Parkinson, D. Y. ^[1]

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1. Lawrence Berkeley National Laboratories, Berkeley, California 94720 (United States)

We employ a coded aperture pattern in front of a pixilated charge couple device detector to image fluorescent x-rays (6–25 KeV) from samples irradiated with synchrotron radiation. Coded apertures encode the angular direction of x-rays, and given a known source plane, allow for a large numerical aperture x-ray imaging system. The algorithm to develop and fabricate the free standing No-Two-Holes-Touching aperture pattern was developed. The algorithms to reconstruct the x-ray image from the recorded encoded pattern were developed by means of a ray tracing technique and confirmed by experiments on standard samples.

• OSTI ID: 22308811
• Journal Information: Review of Scientific Instruments, Vol. 85, Issue 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALGORITHMS
APERTURES
IMAGES
KEV RANGE
SYNCHROTRON RADIATION
X-RAY FLUORESCENCE ANALYSIS