Efficient 6-dimensional phase space reconstruction from experimental measurements using generative machine learning

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Hauptverfasser: Roussel, Ryan, Gonzalez-Aguilera, Juan Pablo, Edelen, Auralee, Wisniewski, Eric, Ody, Alex, Liu, Wanming, Kim, Young-Kee, Power, John
Format: Preprint
Veröffentlicht: 2024
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author Roussel, Ryan
Gonzalez-Aguilera, Juan Pablo
Edelen, Auralee
Wisniewski, Eric
Ody, Alex
Liu, Wanming
Kim, Young-Kee
Power, John
author_facet Roussel, Ryan
Gonzalez-Aguilera, Juan Pablo
Edelen, Auralee
Wisniewski, Eric
Ody, Alex
Liu, Wanming
Kim, Young-Kee
Power, John
contents Next-generation accelerator concepts which hinge on the precise shaping of beam distributions, demand equally precise diagnostic methods capable of reconstructing beam distributions within 6-dimensional position-momentum spaces. However, the characterization of intricate features within 6-dimensional beam distributions using conventional diagnostic techniques necessitates hundreds of measurements, using many hours of valuable beam time. Novel phase space reconstruction techniques are needed to substantially reduce the number of measurements required to reconstruct detailed, high-dimensional beam features in order to resolve complex beam phenomena, and as feedback in precision beam shaping applications. In this study, we present a novel approach to reconstructing detailed 6-dimensional phase space distributions from experimental measurements using generative machine learning and differentiable beam dynamics simulations. We demonstrate that for a collection of synthetic beam distribution test cases that this approach can be used to resolve 6-dimensional phase space distributions using basic beam manipulations and as few as 20 2-dimensional measurements of the beam profile, without the need for prior data collection or model training. We also demonstrate an application of the reconstruction method in an experimental setting at the Argonne Wakefield Accelerator, where it is able to reconstruct the beam distribution and accurately predict previously unseen measurements 75x faster than previous methods.
format Preprint
id arxiv_https___arxiv_org_abs_2404_10853
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Efficient 6-dimensional phase space reconstruction from experimental measurements using generative machine learning
Roussel, Ryan
Gonzalez-Aguilera, Juan Pablo
Edelen, Auralee
Wisniewski, Eric
Ody, Alex
Liu, Wanming
Kim, Young-Kee
Power, John
Accelerator Physics
Next-generation accelerator concepts which hinge on the precise shaping of beam distributions, demand equally precise diagnostic methods capable of reconstructing beam distributions within 6-dimensional position-momentum spaces. However, the characterization of intricate features within 6-dimensional beam distributions using conventional diagnostic techniques necessitates hundreds of measurements, using many hours of valuable beam time. Novel phase space reconstruction techniques are needed to substantially reduce the number of measurements required to reconstruct detailed, high-dimensional beam features in order to resolve complex beam phenomena, and as feedback in precision beam shaping applications. In this study, we present a novel approach to reconstructing detailed 6-dimensional phase space distributions from experimental measurements using generative machine learning and differentiable beam dynamics simulations. We demonstrate that for a collection of synthetic beam distribution test cases that this approach can be used to resolve 6-dimensional phase space distributions using basic beam manipulations and as few as 20 2-dimensional measurements of the beam profile, without the need for prior data collection or model training. We also demonstrate an application of the reconstruction method in an experimental setting at the Argonne Wakefield Accelerator, where it is able to reconstruct the beam distribution and accurately predict previously unseen measurements 75x faster than previous methods.
title Efficient 6-dimensional phase space reconstruction from experimental measurements using generative machine learning
topic Accelerator Physics
url https://arxiv.org/abs/2404.10853