An exposure indicator in digital radiography systems


  • Thunyarat Chusin Department of Radiological Technology, Faculty of Allied Health Sciences, Naresuan University
  • Titipong Kaewlek Department of Radiological Technology, Faculty of Allied Health Sciences, Naresuan University


Exposure indicators, Digital radiography system, Computed radiography


Digital radiography (DR) system has become to replace screen-film system because it has a usefulness of workflow reduction and image quality improvement acquired by the system and users. Several DR manufacturers have developed an exposure indicator for users which can estimate an appropriate exposure technique for general radiography. However, the exposure indicators are obtained independently from various manufacturers with specified values that make a variety of its definitions and acquisitions. The definitions, acquisitions, factors affecting of exposure indicators, and suggestion guidelines for using exposure indicators in clinical are summarized in this article.


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How to Cite

Chusin ธ, Kaewlek ฐ. An exposure indicator in digital radiography systems. Thai J Rad Tech [Internet]. 2018 Dec. 28 [cited 2022 Jul. 1];43(1):21-8. Available from:



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