Related Experiment Video
Updated: Jul 17, 2026

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification (ADCI) and Dose Estimation
Published on: September 4, 2017
RCA/IAEA third external dosimetry intercomparisons in East Asia region
H Yamamoto1, M Yoshizawa, H Murakami
1Departament of Health Physics, Tokai Research Establishment Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan.
The International Atomic Energy Agency (IAEA) successfully conducted an occupational exposure intercomparison for East Asian Member States. Laboratories demonstrated satisfactory performance in determining operational quantities, ensuring reliable radiation protection assessments.
Area of Science:
- Medical Physics
- Radiation Protection
- Nuclear Science
Background:
- The International Atomic Energy Agency (IAEA) coordinates regional intercomparison exercises to ensure accurate measurement of operational quantities.
- Previous exercises were conducted in 1990-1992 and 1995-1996.
- The third phase of this intercomparison in East Asia concluded in mid-2004.
Purpose of the Study:
- To present the results of the third phase of the Regional Cooperation Agreement (RCA)/IAEA intercomparison exercise.
- To assess the performance of laboratories in determining operational quantities for occupational exposure.
- To outline future RCA activities supporting occupational exposure assessment.
Main Methods:
- Organized a regional intercomparison exercise for East Asian Member States.
- Focused on the determination of operational quantities relevant to occupational exposure.
- Collected and analyzed data from participating laboratories.
Main Results:
- Results for the determination of operational quantities were satisfactory across all participating Member States.
- Laboratories demonstrated good performance in the quantities evaluated.
- The exercise confirmed the capability of laboratories in the region.
Conclusions:
- The RCA/IAEA intercomparison successfully validated the performance of laboratories in East Asia.
- The findings support the reliable assessment of occupational exposure in the region.
- Future intercomparison runs are planned to further enhance radiation protection practices.
Related Concept Videos
Biological Effects of Radiation
Imaging Studies for Cardiovascular System III: X-Ray
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Imaging Studies II: Positron Emission Tomography and Scintigraphy
Fundamental Principles of PET
Radiation: Applications
The average...

