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Computed tomography (CT) has become an important imaging tool as it provides high clinical value in many clinical settings due to its ease of access, speed, and cross-sectional imaging capabilities. Modern CT systems utilize one of two types of X-ray detectors to acquire imaging data—energy-integrating or photon-counting. In addition, medical physicists use specialized ionization chambers to routinely measure scanner radiation output for the estimation of radiation dose to patients. This chapter provides an overview of the detectors used in CT data acquisition and radiation dosimetry, with their clinical applications.

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Detector Technology for Computed Tomography Imaging and Radiation Dosimetry: Fundamentals and Clinical Applications

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  • 发表日期：

    2026年

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  • Megan C. Jacobsen,
  • Andrew M. Hernandez

摘要

Computed tomography (CT) has become an important imaging tool as it provides high clinical value in many clinical settings due to its ease of access, speed, and cross-sectional imaging capabilities. Modern CT systems utilize one of two types of X-ray detectors to acquire imaging data—energy-integrating or photon-counting. In addition, medical physicists use specialized ionization chambers to routinely measure scanner radiation output for the estimation of radiation dose to patients. This chapter provides an overview of the detectors used in CT data acquisition and radiation dosimetry, with their clinical applications.