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Enhancing Service Capabilities by Adding Electron-Beam Irradiator to Gamma Irradiation Facility
Biomedical Instrumentation & Technology
|June 21, 2021
Summary
Sterigenics successfully cross-validated processes between electron beam (e-beam) and gamma irradiation technologies. Low-bulk-density products, like polymers for healthcare, showed the highest success rates in this transition.
Area of Science:
- Materials Science
- Radiation Technology
- Process Engineering
Background:
- Sterigenics Brazil facility expanded capabilities by adding a 10-MeV electron beam (e-beam) accelerator in 2013.
- This addition complemented the existing gamma irradiator, diversifying technology offerings and increasing processing capacity.
- The new e-beam accelerator provided an internal backup for certain processes, enhancing operational resilience.
Purpose of the Study:
- To detail the transition approach for integrating e-beam technology alongside existing gamma irradiation services.
- To identify product types successfully cross-validated between gamma and e-beam irradiation modalities.
- To analyze limitations and challenges encountered during the cross-validation process.
Main Methods:
- Cross-validation of sterilization processes between gamma and e-beam irradiation technologies.
- Evaluation of product characteristics influencing cross-validation success (e.g., bulk density, material composition, packaging).
- Comparative analysis of process parameters and outcomes for different product categories.
Main Results:
- A high success rate was achieved in cross-validating processes between the gamma irradiator and the new e-beam accelerator.
- Low-bulk-density products, particularly those made from common polymers for healthcare and laboratory use, were most amenable to successful cross-validation.
- Challenges were noted for high-bulk-density, heterogeneous products, or those with specific dose requirements not aligned with pallet irradiators.
Conclusions:
- The integration of e-beam technology alongside gamma irradiation is feasible and beneficial for expanding sterilization services.
- Product characteristics significantly impact the success of cross-validating processes between different irradiation technologies.
- Careful consideration of product attributes is crucial for determining the suitability of e-beam cross-validation from gamma processes.
