Pencil beam coded aperture x-ray scatter imaging

TitlePencil beam coded aperture x-ray scatter imaging
Publication TypeJournal Article
Year of Publication2012
AuthorsK MacCabe, K Krishnamurthy, A Chawla, D Marks, E Samei, and D Brady
JournalOptics Express
Start Page16310
Pagination16310 - 16320
Date Published07/2012

We use coded aperture x-ray scatter imaging to interrogate scattering targets with a pencil beam. Observations from a single x-ray exposure of a flat-panel scintillation detector are used to simultaneously determine the along-beam positions and momentum transfer profiles of two crystalline powders (NaCl and Al). The system operates with a 3 cm range resolution and a momentum transfer resolution of 0.1 nm 1. These results demonstrate that a single snapshot can be used to estimate scattering properties along an x-ray beam, and serve as a foundation for volumetric imaging of scattering objects. © 2012 Optical Society of America.

Short TitleOptics Express