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Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification (ADCI) and Dose Estimation

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Whose occupational dose are we estimating?

Derek W Jokisch¹, Nicole E Martinez²

¹Department of Physics and Engineering, Francis Marion University, PO Box 100547, Florence, South Carolina, 29501-0547, United States.

Journal of Radiological Protection : Official Journal of the Society for Radiological Protection

|July 15, 2026

Summary

Occupational dosimetrists must assign effective dose based on the Reference Person, not actual worker exposure, according to International Commission on Radiological Protection (ICRP) guidelines. Misconceptions can arise regarding the correct dose of record for radiation workers.

Keywords:

Reference Person dosimetry internal dosimetry

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Area of Science:

Radiological Protection
Occupational Health
Dosimetry

Background:

Occupational dosimetrists are responsible for determining the effective dose for radiation workers.
An informal poll indicated potential confusion regarding the correct dose assignment for the dose of record.

Purpose of the Study:

To clarify the International Commission on Radiological Protection's (ICRP) recommendations for assigning effective dose to radiation workers.
To review the basis for the ICRP's dose of record recommendations.

Main Methods:

Review of relevant ICRP publications defining effective dose and dose of record.
Discussion of potential challenges arising from deviations from ICRP recommendations.

Main Results:

ICRP guidelines state the effective dose of record should reflect what a Reference Person would theoretically receive.
Current practices may deviate from ICRP recommendations, leading to potential misconceptions.

Conclusions:

Adherence to ICRP guidelines ensures accurate and consistent dose records for radiation workers.
Addressing misconceptions about dose of record is crucial for effective radiation protection practices.