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<p>Ultrasound waves can be generated by various radiation sources, including X-rays, protons, electrons and electrical fields, through the rapid thermal expansions and contractions that occur when materials absorb deposited radiation energies. The ultrasound waves, which we refer to as ‘radiacoustic waves’, can be detected for imaging purposes. Radiacoustic imaging offers new imaging contrasts beyond traditional pulse–echo ultrasound. This Perspective provides an analysis of progress in radiacoustic imaging in recent years, focusing on biomedical and materials science applications. We explore the mechanisms behind radiacoustic imaging, highlight its current uses and challenges, and discuss potential advances to improve the effectiveness of radiacoustic imaging technologies across different fields.</p>

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Radiacoustic imaging

  • 期刊论文

  • 发表日期：

    2025年9月17日

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  • Yifei Xu,
  • Shawn Liangzhong Xiang

摘要

Ultrasound waves can be generated by various radiation sources, including X-rays, protons, electrons and electrical fields, through the rapid thermal expansions and contractions that occur when materials absorb deposited radiation energies. The ultrasound waves, which we refer to as ‘radiacoustic waves’, can be detected for imaging purposes. Radiacoustic imaging offers new imaging contrasts beyond traditional pulse–echo ultrasound. This Perspective provides an analysis of progress in radiacoustic imaging in recent years, focusing on biomedical and materials science applications. We explore the mechanisms behind radiacoustic imaging, highlight its current uses and challenges, and discuss potential advances to improve the effectiveness of radiacoustic imaging technologies across different fields.