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Standardized Method for Measuring Collection Efficiency from Wipe-sampling of Trace Explosives

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Larry Hudson¹, Fred Bateman, Paul Bergstrom

¹National Institute of Standards and Technology, 100 Bureau Drive, Stop 8460, Gaithersburg, MD 20899, United States. larry.hudson@nist.gov

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine

|December 6, 2011

Summary

Security screening systems increasingly use radiation and isotopes to detect threats. New standards are being developed to ensure the technical performance and safety of these vital systems.

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Area of Science:

Applied Physics
Radiological Sciences
Security Technology

Background:

Growing use of radiation and isotopes in security screening due to threats from improvised explosive devices.
Significant global investment in security screening systems necessitates standardized performance and safety evaluations.
Need for harmonized standards for X-ray and gamma-ray screening systems detecting explosives and contraband.

Purpose of the Study:

To review new standard measurement tools and protocols for evaluating security screening systems.
To highlight technical trends influencing the revision of baseline standards for screening technologies.
To advocate for the intentional use of technical performance standards by security stakeholders.

Main Methods:

Review of a suite of national standard test methods and protocols.
Analysis of standard test objects for evaluating screening systems.
Examination of radiation measurement protocols for imaging quality and safety.

Main Results:

Development of standard measurement tools by the National Institute of Standards and Technology (NIST).
Identification of technical trends enhancing the revision of baseline security screening standards.
Established protocols for assessing technical performance and radiation safety.

Conclusions:

Harmonized standards are crucial for effective security screening.
Technical performance standards can enhance the reliability and safety of screening systems.
Intentional adoption of standards by stakeholders will yield significant advantages in security operations.