Radiation protection at synchrotron radiation facilities

Area of Science:

• Accelerator Physics
• Radiation Safety Engineering
• Particle Physics

Background:

• Synchrotron radiation (SR) facilities are unique accelerator facilities characterized by low injection beam power and high stored beam power.
• The storage ring, a key component, is typically located above ground, posing radiation exposure risks to personnel on experimental floors.
• SR beamlines also present radiation hazards due to phenomena like gas bremsstrahlung and synchrotron radiation.

Purpose of the Study:

• To address critical radiation issues within synchrotron radiation facilities.
• To provide comprehensive guidance on shielding design for both the storage ring and SR beamlines.
• To review radiation safety protocols and methodologies for calculating shielding requirements.

Main Methods:

• Description of normal and abnormal beam loss scenarios during injection and operation.
• Analysis of photon and neutron radiation sources from beam losses in the storage ring.
• Review of shielding design considerations for SR beamlines, including gas bremsstrahlung and synchrotron radiation.

Main Results:

• Detailed discussion of shielding design strategies for storage ring components.
• Presentation of radiation source terms and calculation methodologies for effective shielding.
• Evaluation of radiation safety challenges specific to SR beamlines.

Conclusions:

• Effective shielding design is crucial for ensuring radiation safety in SR facilities.
• Understanding beam loss mechanisms and radiation types is fundamental for robust shielding.
• The methodologies presented provide a framework for designing safe and efficient SR facilities.