Holotomography Phase-Retrieval
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Holotomography is a non-destructive x-ray imaging technique which allows to visualize the interior morphology of object without damaging them. It is similar to x-ray computed tomography (CT), but unlike conventional CT, which is based on the attenuation of x-rays passing through the object, holotomography exploits the phase shift caused by the sample. This phase-contrast imaging allows to increase image contrast by recovering refractive index of materials and is proven to be more sensitive to density variations than conventional absorption-based X-ray imaging when applied to low-Z materials. In holotomography, the phase is retrieved by measuring the variations in intensity of the object at different sample to detector distances. Several algorithms exist to perform this task such as, contrast transfer function (CTF), transport of intensity equation (TIE), and a mixed approach which combine both TIE and CTF.
- Short Name / Acronym:
- Holotomo
- Project Type:
- Open Source, Publicly Available Repository
- Site Accession Number:
- 1007271
- Software Type:
- Scientific
- Version:
- 1.0
- License(s):
- GNU General Public License v2.0
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)Primary Award/Contract Number:AC52-07NA27344
- DOE Contract Number:
- AC52-07NA27344
- Code ID:
- 34332
- OSTI ID:
- 1599369
- Country of Origin:
- United States
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