7–12 May 2023
Venice, Italy
Europe/Zurich timezone

Towards fully differentiable accelerator modeling

WEPA065
10 May 2023, 16:30
2h
Salone Adriatico

Salone Adriatico

Poster Presentation MC5.D11: Code Developments and Simulation Techniques Wednesday Poster Session

Speaker

Juan Pablo Gonzalez-Aguilera (University of Chicago)

Description

Optimization and design of particle accelerators is challenging due to the large number of free parameters and the corresponding lack of gradient information available to the optimizer. Thus, full optimization of large beamlines becomes infeasible due to the exponential growth of free parameter space the optimization algorithm must navigate. Providing exact or approximate gradient information to the optimizer can significantly improve convergence speed, enabling practical optimization of high-dimensional problems. To achieve this, we have leveraged state-of-the-art automatic differentiation techniques developed by the machine learning community to enable end-to-end differentiable particle tracking simulations. We demonstrate that even a simple tracking simulation with gradient information can be used to significantly improve beamline design optimization. Furthermore, we show the flexibility of our implementation with various applications that make use of different kinds of derivative information.

Funding Agency

This work was supported by the U.S. National Science Foundation under Award PHY-1549132, the Center for Bright Beams.

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Primary authors

Juan Pablo Gonzalez-Aguilera (University of Chicago) Young-Kee Kim (University of Chicago) Ryan Roussel (SLAC National Accelerator Laboratory) Auralee Edelen (SLAC National Accelerator Laboratory) Christopher Mayes (SLAC National Accelerator Laboratory)

Presentation materials

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