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Emergency Optically Stimulated Luminescence Dosimetry Using Different Materials.

S Sholom¹, R Dewitt, Sl Simon

¹Oklahoma State University, Stillwater, OK, USA.

Radiation Measurements

|November 30, 2011

Summary

This summary is machine-generated.

This study explored common materials like nails, business cards, and buttons as potential emergency dosimeters using Optically Stimulated Luminescence (OSL). While some showed promise for detecting radiation exposure, signal fading under light limits their use to prompt assessments.

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Area of Science:

Radiation Detection and Measurement
Materials Science
Dosimetry

Background:

Optically Stimulated Luminescence (OSL) is a method for assessing radiation exposure.
Developing low-cost, readily available emergency dosimeters is crucial for radiation accident response.

Purpose of the Study:

To evaluate the suitability of common materials (human nails, business cards, plastic buttons) as individual emergency dosimeters.
To compare the OSL properties of these materials with human teeth.

Main Methods:

Investigated OSL properties of various materials after exposure to ionizing radiation.
Assessed material sensitivity, dose response linearity, and signal fading under different storage conditions.
Compared findings with OSL properties of teeth.

Main Results:

Most materials exhibited OSL signals post-irradiation; some business cards had a significant pre-irradiation signal.
Sensitivity varied widely (tens of mGy to dozens of Gy), with linear dose response below 10 Gy.
Signal fading was significant, especially under routine light, with nails showing the least fading (~15% over 3 weeks in dark).

Conclusions:

Tested materials can potentially detect and estimate overexposure in triage situations.
Prompt measurements are essential due to rapid signal fading, particularly under light exposure.
Further research may optimize these materials for specific emergency dosimetry applications.