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Related Experiment Video

Updated: May 8, 2026

Diffuse Optical Spectroscopy for the Quantitative Assessment of Acute Ionizing Radiation Induced Skin Toxicity Using a Mouse Model

Diffuse Optical Spectroscopy for the Quantitative Assessment of Acute Ionizing Radiation Induced Skin Toxicity Using a Mouse Model

Published on: May 27, 2016

OpenDosimeter: Open hardware personal X-ray dosimeter.

Norah Ger¹, Alice Ku², Jasmyn Lopez²

¹Mama Lucy Kibaki Hospital, Nairobi County, Kenya.

Communications Engineering

|December 1, 2025

Summary

This summary is machine-generated.

OpenDosimeter offers real-time X-ray dose monitoring for radiation workers. This low-cost, open-hardware solution uses readily available components for accurate personal exposure tracking.

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Last Updated: May 8, 2026

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Published on: May 27, 2016

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Published on: May 2, 2018

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities

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Published on: February 20, 2021

Area of Science:

Medical Physics
Instrumentation
Radiation Detection

Background:

Accurate X-ray exposure monitoring is crucial for radiation workers.
Existing personal dosimeters are often expensive, inaccessible, or lack real-time feedback.
There is a need for cost-effective, real-time personal X-ray dose monitoring solutions.

Purpose of the Study:

To present OpenDosimeter, an open-hardware system for real-time personal X-ray dose monitoring.
To demonstrate a novel calibration method using 241Am from smoke detectors.
To provide a transparent and reproducible approach for dose measurement.

Main Methods:

Developed an open-hardware dosimeter using a scintillator-based X-ray sensor and Raspberry Pi Pico.
Calibrated the device using gamma emissions from 241Am sources found in ionization smoke detectors.
Calculated effective dose from X-ray exposure using scintillator properties and public data.

Main Results:

Achieved real-time feedback (1 Hz) and data logging capabilities.
Demonstrated a linear response for dose rate readings between 0.1-1000 μSv/h with ±25% accuracy up to 120 keV.
The total cost for constructing an OpenDosimeter is under $100.

Conclusions:

OpenDosimeter provides a cost-effective, real-time solution for personal X-ray dose monitoring.
The open-source design and calibration method allow for global, local reproducibility.
This technology can significantly improve radiation safety practices for workers.