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Radiation issues in a radioactive ion decay ring.

M Magistris¹, M Silari

¹CERN, 1211 Geneva 23, Switzerland.

Radiation Protection Dosimetry

|December 31, 2005

Summary

Radioactive ion decay in beta-beam facilities generates neutrinos but also activates accelerator components. This study quantifies induced radioactivity and environmental dose rates from particle losses in magnets and surrounding materials.

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Area of Science:

Nuclear Physics
Particle Physics
Radiation Physics

Background:

Beta-beam facilities produce neutrino beams from radioactive ion decay.
Particle losses within the storage ring activate accelerator components and surrounding materials.

Purpose of the Study:

To estimate induced radioactivity and environmental dose rates in a beta-beam facility.
To assess the impact of particle losses on accelerator magnets and surrounding infrastructure.

Main Methods:

Utilized the FLUKA Monte Carlo code for simulations.
Calculated hadron interaction densities and track-length distributions.
Estimated induced radioactivity and dose rates.

Main Results:

Particle losses, particularly in decay ring arcs, significantly irradiate magnets.
Calculations provide quantitative estimates of induced radioactivity.
Predicted dose rates in the decay ring and environmental consequences were determined.

Conclusions:

Understanding particle loss activation is crucial for beta-beam facility design and safety.
FLUKA simulations effectively model radiation activation and environmental impact.
The study provides essential data for managing radioactive activation in future neutrino experiments.

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