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June 12, 2026Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated EquipmentOpen Access

Prototyping pinhole collimators for imaging irradiated nuclear fuel

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Authors

NLNarrie LoftusAAAshish AvachatJGJoseph Graham

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Overview

Randomized trial tests imaging parameters of pinhole collimators for nuclear fuel, suggesting efficient design methods.

Key Points

  • This research aims to develop a rapid prototyping method for pinhole collimators used in imaging irradiated nuclear fuel.
  • Fabricated sub-millimeter pinhole collimators using low-melting-point materials.
  • Tested parameters including acceptance angle, aperture diameter, and magnification.
  • Conducted radiography to assess image quality and spatial resolution.
  • Collimators effectively collimated multi-energy gamma sources indicating good performance.
  • Magnification confirmed through radiography showing reasonable spatial resolution.
  • Analysis yielded acceptable signal- and contrast-to-noise ratios.

Cite This Study

Loftus et al. (2026) studied this question.

synapsesocial.com/papers/6a2ba1ca8101cf8926f01180https://doi.org/10.1016/j.nima.2026.171744
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