Response of Photon Dosimeters and Survey Instruments to New Operational Quantities Proposed by ICRU RC26

TL;DR

This paper evaluates how photon radiation dosimeters and survey instruments respond to new operational quantities proposed by ICRU RC26, aiming to improve the accuracy of radiation protection measurements.

Contribution

It provides an assessment of the response of existing dosimeters and survey instruments to the new operational quantities proposed by ICRU RC26.

Findings

Dosimeters show varying responses to the new quantities.

Survey instruments' responses are affected by the new definitions.

Results inform calibration adjustments for improved accuracy.

Abstract

Operational quantities in radiation protection are defined as conservative estimates of the protection quantities, which are generally not accessible to measurement. Radiation protection dosimeters and monitors are calibrated in the operational quantities. An ICRU Report Committee works on a proposal to replace the operational quantities for external radiation ambient dose equivalent and personal dose equivalent by quantities which are defined in close relation to the protection quantities. In this note, the response of dosimeters and survey instruments for photon radiation to these new operational quantities is evaluated.