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Biological Effects of Radiation

Biological Effects of Radiation

All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...

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Contamination Measurements from Simultaneous Activated Potassium Bromide Radiological Dispersal Devices with a

Nathanael Simerl¹, Jace Beavers¹, Jacob Milburn¹

¹Alan Levin Department of Mechanical and Nuclear Engineering, Kansas State University, 3002 Rathbone Hall, 1701B Platt Street, Manhattan, KS 66506.

|April 21, 2021

Summary

This summary is machine-generated.

Researchers mapped surface contamination from radiological dispersal devices (RDDs) using a ground vehicle and cerium bromide sensor. This provides a baseline for comparing remote sensing techniques for radiological contamination assessment.

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Area of Science:

Radiological science
Environmental monitoring
Remote sensing

Background:

Radiological Dispersal Devices (RDDs) pose a significant threat, necessitating effective contamination assessment methods.
Rapid and remote mapping techniques are crucial for post-event response and environmental remediation.
Establishing baseline contamination data is essential for validating new detection technologies.

Purpose of the Study:

To quantify surface contamination from activated potassium bromide following simulated RDD detonations.
To establish a baseline for comparison with other rapid, remote radiological mapping methods.
To integrate radiological data with aerial imagery for contextual geological information.

Main Methods:

Measurements were taken using a cerium bromide sensor towed by a ground vehicle over a 19,900 m2 area.
Sensor response correction factors were calculated via SWORD simulations to determine activity per meter-squared.
Continuous contamination maps were generated using interpolated data from raster scans and overlaid with UAV-based aerial imagery.

Main Results:

Quantified surface contamination distribution from activated potassium bromide.
Generated continuous radiological maps integrated with geological context.
Collected baseline data for comparison with remote sensing methods.

Conclusions:

The study successfully quantified surface contamination and established a baseline for future comparisons.
Integration of radiological data with aerial imagery provides valuable contextual information.
Further research will compare these ground-based measurements with unmanned aerial vehicle (UAV) methods.