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WE2AA04 |
Data Analysis and Control of an MeV Ultrafast Electron Diffraction System using Machine Learning |
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- T.B. Bolin, S. Biedron, M.A. Fazio, M. Martínez-Ramón, S.I. Sosa Guitron
UNM-ECE, Albuquerque, USA
- M. Babzien, M.G. Fedurin, J.J. Li, M.A. Palmer
BNL, Upton, New York, USA
- S. Biedron
Element Aero, Chicago, USA
- S. Biedron
UNM-ME, Albuquerque, New Mexico, USA
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MeV ultrafast electron diffraction (MUED) is a pump-probe material characterization technique to study ultrafast lattice dynamics with high temporal and spatial resolution. It is a relatively young technology that has the potential to shed light onto some of the most puzzling problems in physics. This complex instrument can be advanced into a turn-key high-throughput tool with the aid of machine learning (ML) mechanisms together with high-performance computing. The MUED instrument located in the Accelerator Test Facility of Brookhaven National Laboratory was employed in this work to test different ML approaches for both data analysis and control. We characterized three materials using MUED: graphite, black phosphorous and gold thin films. Diffraction patterns were acquired in single shot mode and different ML methodologies were applied to reduce image noise. Convolutional neural network autoenconder and variational autoenconder models were utilized to extract the noise features and increase the signal-to-noise ratio. The energy jitter of the electron beam was analyzed after noise reduction of the single shot diffraction patterns.
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Slides WE2AA04 [12.865 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-LINAC2022-WE2AA04
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About • |
Received ※ 30 August 2022 — Revised ※ 02 September 2022 — Accepted ※ 15 September 2022 — Issue date ※ 20 September 2022 |
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TH1AA03 |
Accelerator development for Global Security |
657 |
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- S. Biedron
Element Aero, Chicago, USA
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Many facilities and projects in global security have to do with global security concerns. From direct interrogation to radiation testing, there are myriad of security applications of particle accelerators. . This paper will review accelerator design and technology development including novel sources being developed.
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Slides TH1AA03 [24.972 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-LINAC2022-TH1AA03
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About • |
Received ※ 31 August 2022 — Revised ※ 06 September 2022 — Accepted ※ 16 September 2022 — Issue date ※ 23 September 2022 |
Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
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