May 5 – 10, 2019
Europe/Berlin timezone

An Innovative Beam Cooling Technique using a Laser-Plasma Undulator

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Meštrovićevo šetalište 45 HR – 21000 Split Republic of Croatia


Oznur Apsimon (The University of Manchester)


Beam cooling is a crucial step for the luminosity delivery system in a linear collider or an accelerator based light source to achieve ultra low beam emittance required for high luminosity and high brightness, respectively. Damping rings equipped with wiggler magnets and accelerating cavities were previously proposed for systematic reduction of horizontal phase space area through radiation reaction whilst compensating for longitudinal momentum loss. In this paper, the concept of plasma undulator and its effective model analogous to a magnetic wiggler as well as its relation to damping properties were recapitulated. EPOCH simulations for the laser propagation optimisation are presented; formation of an order of magnitude larger undulator field compared to conventional wigglers is demonstrated. In conclusion, an existing conventional damping ring design was reviewed to explore the indications of an upgrade to plasma technology.

Working group Secondary radiation generation & applications

Primary authors

Oznur Apsimon (The University of Manchester) Prof. Dino Jaroszynski (University of Strathclyde) Dr Yong Ma (University of Michigan) Dr Daniel Seipt (University of Michigan) Prof. Alexander G. R. Thomas (University of Michigan) Dr Guoxing Xia (University of Manchester)

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