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X-ray Imaging

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Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...

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Related Experiment Video

Updated: Jun 4, 2026

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

Published on: September 11, 2011

Large area image plane sensors for radiography.

R D Nelson¹, E M Witteles

¹World-wide Innovative Technology Corporation, P.O. Box 7146, Huntsville, Alabama 35807.

Journal of X-Ray Science and Technology

|February 11, 2011

Summary

Large semiconductor image plane arrays offer higher sensitivity and spatial resolution for radiology. However, their limited image plane size due to silicon wafer constraints presents a key challenge.

Area of Science:

Medical Imaging
Semiconductor Technology
Radiology

Background:

Traditional radiography methods like film cassettes and computed radiography (photostimulable phosphors) have limitations in sensitivity and spatial resolution.
Semiconductor image plane arrays integrate detector and readout functions, offering a potential advancement in medical imaging technology.

Purpose of the Study:

To investigate the feasibility of employing large semiconductor image plane arrays for radiological applications.
To evaluate the potential advantages and limitations of this technology compared to existing methods.

Main Methods:

Exploration of semiconductor image plane arrays, which combine detector and multiplexing functions.
Analysis of the trade-offs between sensitivity, spatial resolution, and object field size.

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Main Results:

Semiconductor image plane arrays show promise for higher sensitivity and spatial resolution in radiology.
A significant limitation is the reduced object field size, constrained by the maximum dimensions of silicon wafers.

Conclusions:

Semiconductor image plane arrays represent a potentially superior alternative to film and computed radiography in terms of image quality.
Further development is needed to overcome the size limitations for widespread clinical adoption in radiology.