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Updated: Nov 1, 2025
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Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities
Published on: February 20, 2021
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Potential Induced Radioactivity in Materials Processed with X-ray Energy Above 5 MeV
Biomedical Instrumentation & Technology
|June 21, 2021
Summary
This study presents qualified test methods to assess potential induced radioactivity in products, ensuring compliance with sterilization standards. Findings from X-ray irradiation testing offer valuable data for healthcare manufacturers.
Area of Science:
- Medical Device Sterilization
- Radiation Physics
- Materials Science
Background:
- ANSI/AAMI/ISO 11137-1 mandates assessment of induced radioactivity in sterilized products.
- X-ray irradiation is an emerging sterilization method in healthcare.
- Standardized protocols are needed for evaluating material activation.
Purpose of the Study:
- To describe methods for assessing induced radioactivity in products.
- To provide test results for products processed via X-ray irradiation.
- To support the adoption of X-ray sterilization in healthcare.
Main Methods:
- Conceptual discussion of materials for radioactivity assessment.
- Testing of products subjected to a 7.5-MeV X-ray irradiation process.
- Application of qualified test methods for compliance.
Main Results:
- Demonstrated methods for assessing induced radioactivity.
- Presented test results from X-ray irradiated products.
- Highlighted the need for standard assessment protocols.
Conclusions:
- Qualified test methods can achieve compliance with radioactivity assessment requirements.
- X-ray irradiation testing provides essential data for material evaluation.
- Standardized protocols and shared databases will benefit manufacturers using X-ray sterilization.
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