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T: Fachverband Teilchenphysik

T 76: Data, AI, Computing, Electronics VII (Generative AI, MC Generators)

T 76.7: Vortrag

Donnerstag, 3. April 2025, 17:45–18:00, VG 2.101

AIDO - A Generalized Detector Optimization Framework using Surrogate Models — •Kylian Schmidt, Jan Kieseler, and Nikhil Krishna — Institute of Experimental Particle Physics (ETP), Karlsruhe Institute of Technology (KIT)

The design of modern high-energy physics detectors is a highly intricate process, aiming to maximize their physics potential while balancing various manufacturing constraints. As detectors become larger and more sophisticated, it becomes increasingly difficult to maintain a comprehensive understanding of the entire system. To address this challenge, we aim to translate the design process into an optimization task suitable for Machine Learning by treating the parameters of the simulation as hyper-parameters of the model.

The AIDO framework is a generalized tool for the optimization of continuous and discrete detector parameters. We train a diffusion-based surrogate model on parallel Geant4 simulations with varying detector geometries, enabling the model to interpolate the expected performance across different configurations. This allows for gradient descent on the generated parameter space and identification of the optimal combination of parameters that maximizes a specific physics goal. As a demonstration, we show how this approach can be applied to generate an optimal sampling calorimeter by maximizing its energy resolution starting from a random initial composition.

Keywords: Artificial Intelligence; Surrogate Models; Detector Design; Optimization; Machine Learning