Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Development and validation of an X-ray tomograph for two-phase flow.

Eric Hervieu1, Emmanuel Jouet, Laurent Desbat

  • 1Commissariat à l'Energie Atomique, DEN/DTP/SETEX/LTAC, Grenoble, France. eric.hervieu@cea.fr

Annals of the New York Academy of Sciences
|December 24, 2002
PubMed
Summary

This study developed a new X-ray tomograph for air-water two-phase flow. Improved reconstruction algorithms significantly enhance measurement accuracy near pipe walls.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Curved-slit collimation for fan-beam-based virtual fluoroscopy.

Physics in medicine and biology·2026
Same author

Marker-based C-arm self-calibration with unknown calibration pattern.

Medical physics·2024
Same author

A tomographic reconstruction algorithm for cross-sectional imaging of IMRT beams from six projections.

Physics in medicine and biology·2023
Same author

A novel QA phantom based on scintillating fiber ribbons with implementation of 2D dose tomography for small-field radiotherapy.

Medical physics·2022
Same author

Fan-Beam Based Virtual Fluoroscopy for Navigated Catheterization in Interventional Radiology.

Studies in health technology and informatics·2019
Same author

Spline Driven: High Accuracy Projectors for Tomographic Reconstruction From Few Projections.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2015

Area of Science:

  • Engineering
  • Physics

Background:

  • Investigating air-water two-phase flow requires high-resolution imaging.
  • Standard X-ray tomography reconstruction algorithms suffer from artifacts near absorption gradients, impacting accuracy.

Purpose of the Study:

  • To develop and validate a high spatial resolution X-ray tomograph for two-phase flow.
  • To improve measurement accuracy in two-phase flow investigations, particularly near boundaries.

Main Methods:

  • Designed and built a 60 keV X-ray tomograph with a precise mechanical bench.
  • Developed advanced reconstruction algorithms employing spatially adaptive regularization.
  • Calibrated the system using static phantoms and validated with an air-water bubble column.

Main Results:

Related Experiment Videos

  • Preliminary calibration demonstrated the effectiveness of the advanced reconstruction algorithms.
  • Validation on an air-water bubble column showed significant accuracy improvements in local void fraction measurements.
  • Pixel-by-pixel comparisons confirmed enhanced accuracy, especially near walls, due to adaptive regularization.

Conclusions:

  • The developed X-ray tomograph and advanced reconstruction algorithms provide accurate quantification of air-water two-phase flow.
  • Spatially adaptive regularization effectively mitigates artifacts, leading to superior measurement accuracy compared to standard methods.