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Author Spotlight: Enhancing Accuracy and Reproducibility in Whole Bone Bending Tests
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ASME B89.4.23 Performance Evaluation Tests and Geometry Errors in X-Ray Computed Tomography Systems.

Bala Muralikrishnan1, Meghan Shilling1, Vincent Lee1

  • 1Sensor Science Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.

Journal of Research of the National Institute of Standards and Technology
|March 12, 2024
PubMed
Summary
This summary is machine-generated.

The ASME B89.4.23-2020 standard offers flexibility in testing industrial X-ray computed tomography (XCT) systems. This study guides optimal application for high sensitivity to geometry errors in cone-beam XCT systems.

Keywords:
ASME B89.4.23cone-beam X-ray computed tomographygeometry errorsperformance evaluation

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Area of Science:

  • Metrology
  • Industrial Instrumentation
  • Mechanical Engineering

Background:

  • The American Society of Mechanical Engineers (ASME) released the B89.4.23-2020 standard for industrial X-ray computed tomography (XCT) system performance evaluation.
  • This standard provides procedures for verifying system accuracy for acceptance and periodic reverification.

Purpose of the Study:

  • To provide guidance on optimally applying the ASME B89.4.23 standard in industry.
  • To achieve high sensitivity to geometry errors in cone-beam XCT systems.

Main Methods:

  • Simulation studies were conducted to evaluate testing configurations.
  • Analysis focused on sensitivity to geometry errors of the detector and rotation stage.

Main Results:

  • Identified testing configurations that meet ASME B89.4.23 requirements.
  • Demonstrated that some configurations offer maximal sensitivity to geometry errors, while others are less effective.

Conclusions:

  • Optimal testing configuration selection is crucial for effective XCT system performance evaluation.
  • Careful application of the ASME standard ensures confidence in dimensional measurement accuracy.