Speaker
Description
Several beam intercepting devices (BID) are used in particle accelerators for different functions: machine protection (stopping the beam in accidental scenarios), human safety, beam conditioning (e.g. collimators, scrapers, slits), secondary beam production (targets) and absorbers (beam dumps).
Since these devices are found in accelerators with a broad range of beam energies and particle types, a large diversity of requirements, materials and designs are observed.
Typical considerations are physical and structural properties of materials. Hence, the full palette of materials is used in BID across the different accelerators, from ceramics and carbon-based materials (graphite and CfC) to virtually all metals.
In addition, some devices need to absorb and manage significant power (heat) deposited by the beam, which imposes other constraints in the design, such as cooling requirements and service temperature of the employed materials.
Irradiation damage is also accounted for in the design of some devices.
An overview of the main considerations for components that need to absorb and dissipate significant beam power and particle accelerators will be presented here, including their main functionalities, requirements and design features.
