X-ray Multimodal Tomography Using Speckle-Vector Tracking

Advanced x-ray imaging is promising in a host of contexts, including i00exn v00exi00exv00exo biological scans that could dramatically advance many medical treatments. This study presents advances in x-ray computed tomography using speckle vectors, an especially attractive technique requiring minimal instrumentation for high sensitivity and resolution. With just a piece of abrasive paper or a filter membrane as optical modulator, multiple image modalities become available at no extra cost, for a given dose of radiation to the specimen. The schemes described here should promote phase-contrast and dark-field three-dimensional imaging, using either synchrotron or laboratory sources.