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Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)

Editor
Michael G. Stamatelatos
Michael G. Stamatelatos
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Harold S. Blackman
Harold S. Blackman
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ISBN-10:
0791802442
No. of Pages:
2576
Publisher:
ASME Press
Publication date:
2006

The Proton Therapy Facility at Paul Scherrer Institut (PSI) relies on a complex control and safety (interlock) system to deliver a proton beam to deep-seated tumors, using the spot-scanning technique. In connection with an upcoming upgrade of the facility, a Probabilistic Safety Assessment (PSA) has been initiated to identify potential vulnerabilities in the technical component of the facility. This paper presents an overview of the PSA, the safety insights that have been obtained, and the corresponding recommendations.

In the spot-scanning technique, a bundled pencil beam is scanned through the target volume from several directions successively. The target is divided into...

Summary/Abstract
1. Introduction
2. Proton Therapy at PSI
3. Safety Features of the Facility
4. Accident Sequence Modeling
5. Human Reliability Analysis (HRA)
6. Results
7. Safety Insights, Recommendations, and Conclusions
Acknowledgments
References
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