Radiation Imaging Overview

Principles

Definition

Radiation imaging is the scientific field and applied methodology dedicated to creating visual representations of internal structures or material properties by detecting and interpreting radiation that has interacted with or been emitted by the subject. This approach is fundamental to non-destructive analysis and visualization across various scientific, medical, and industrial applications.

Ontological type

Core Modalities

Image Formation Principles

Safety and Dosimetry

Key developments

Key Figures

Quantitative Dosimetry and Metrics era

G.T. Gullberg [1] engaged with institutions such as University of California, Berkeley [3] during this era. His key contribution, Three-dimensional reconstruction in nuclear medicine emission imaging [5] (1974), advanced quantitative, three-dimensional emission mapping and set the stage for attenuation-aware reconstruction approaches central to metrology and quality assurance of the era. Michael E. Phelps [2] was associated with institutions such as University of California, Los Angeles [4] in this era. His notable contribution, Effect of positron range on spatial resolution [6] (1975), highlighted how positron range limited spatial resolution and spurred developments in detector design and quantitative reconstruction for dosimetry and imaging.

Detector Materials and Architectures era

F. Haberl [1] was associated with the Massachusetts Institute of Technology [3] during this era of detector materials and architectures. His key contribution was the pn-CCD camera for X-ray astronomy, The European Photon Imaging Camera on XMM-Newton: The pn-CCD camera [6], which enhanced sensitivity and spatial localization for X-ray imaging in this era. I. Snigireva [2] was affiliated with the University of Sheffield [4] and RWTH Aachen University [5] during this era. Her contributions included On the possibilities of x-ray phase contrast microimaging by coherent high-energy synchrotron radiation [7], imaging by parabolic refractive lenses in the hard X-ray range [8], and A microscope for hard x rays based on parabolic compound refractive lenses [9], which collectively broadened contrast mechanisms and enabled high-resolution phase-contrast imaging in hard X-rays.

Integrated Energy‑Resolved Imaging era

Richard Pötter [1] stands as a leading researcher in this era, with key affiliations including the Institute of Cancer Research [3] and Harvard University [4]. His key contributions in this era come from the 2006 GYN GEC ESTRO recommendations on 3D image-based brachytherapy parameters and the integration of 3D anatomy, radiation physics, and radiobiology [6], which were pivotal for standardizing dose metrics and enabling image-guided planning in energy-resolved imaging. Christian Kirisits [2] is another leading figure in this era, with affiliations including Harvard University [4] and the Medical University of Vienna [5]. His contributions, shared through the same 2006 GYN GEC ESTRO recommendations on 3D dose-volume parameters and 3D image-based anatomy concepts, radiation physics, and radiobiology [6], helped advance consensus and practical adoption of image-guided, dose-aware workflows in integrated energy-resolved imaging.