Design and construction of a compact, high-repetition-rate ultrafast electron diffraction instrument
We present the design and performance of a compact ultrafast electron diffraction instrument. The diffractometer provides a means of examining time-resolved ultrafast dynamical properties of solids. The system's utilization is discussed in terms of instrument parameters and diffraction data fro...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/169315 |
| _version_ | 1811677447483031552 |
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| author | Freelon, Byron Rohwer, Timm Zong, Alfred Kogar, Anshul Zhou, Hengyun Wong, Liang Jie Ergeçen, Emre Gedik, Nuh |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Freelon, Byron Rohwer, Timm Zong, Alfred Kogar, Anshul Zhou, Hengyun Wong, Liang Jie Ergeçen, Emre Gedik, Nuh |
| author_sort | Freelon, Byron |
| collection | NTU |
| description | We present the design and performance of a compact ultrafast electron diffraction instrument. The diffractometer provides a means of examining time-resolved ultrafast dynamical properties of solids. The system's utilization is discussed in terms of instrument parameters and diffraction data from selected condensed matter samples. The difractometer's performance is highlighted in terms of detection sensitivity, instrumental temporal resolution, and the electron beam transverse coherence length. Following specific details of the construction, we present a practical discussion of parameters such as repetition rate and provide advice on general construction approaches for laboratory-based, keV ultrafast electron diffractometers. In addition, design guidance for constructing a compact electron gun source that is well-suited for studying diffraction from hard condensed matter is given. A unique data acquisition scheme, utilizing high laser repetition rates, is presented. |
| first_indexed | 2024-10-01T02:37:31Z |
| format | Journal Article |
| id | ntu-10356/169315 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:37:31Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1693152023-07-14T15:39:48Z Design and construction of a compact, high-repetition-rate ultrafast electron diffraction instrument Freelon, Byron Rohwer, Timm Zong, Alfred Kogar, Anshul Zhou, Hengyun Wong, Liang Jie Ergeçen, Emre Gedik, Nuh School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Ultrafast Electron Diffraction Condensed matter We present the design and performance of a compact ultrafast electron diffraction instrument. The diffractometer provides a means of examining time-resolved ultrafast dynamical properties of solids. The system's utilization is discussed in terms of instrument parameters and diffraction data from selected condensed matter samples. The difractometer's performance is highlighted in terms of detection sensitivity, instrumental temporal resolution, and the electron beam transverse coherence length. Following specific details of the construction, we present a practical discussion of parameters such as repetition rate and provide advice on general construction approaches for laboratory-based, keV ultrafast electron diffractometers. In addition, design guidance for constructing a compact electron gun source that is well-suited for studying diffraction from hard condensed matter is given. A unique data acquisition scheme, utilizing high laser repetition rates, is presented. Nanyang Technological University Published version This work was supported by the U.S. Department of Energy, BES DMSE (building of the experimental setup, data taking, and analysis), and the Gordon and Betty Moore Foundation’s EPiQS Initiative Grant No. GBMF9459 (instrumentation). L.J.W. was supported by the Nanyang Assistant Professorship start-up grant. T.R. received funding from the Humboldt Postdoctoral Fellowship. B.F. would like to thank the MIT Physics Department for generous support. B.F. acknowledges support from the Welch Foundation (Grant No. L-E001-19921203) and the Texas Center for Superconductivity at the University of Houston (TcSUH). 2023-07-12T05:31:30Z 2023-07-12T05:31:30Z 2023 Journal Article Freelon, B., Rohwer, T., Zong, A., Kogar, A., Zhou, H., Wong, L. J., Ergeçen, E. & Gedik, N. (2023). Design and construction of a compact, high-repetition-rate ultrafast electron diffraction instrument. Review of Scientific Instruments, 94(5), 053305-1-053305-11. https://dx.doi.org/10.1063/5.0094278 0034-6748 https://hdl.handle.net/10356/169315 10.1063/5.0094278 37249410 2-s2.0-85160875425 5 94 053305-1 053305-11 en NAP SUG Review of Scientific Instruments © 2023 Author(s). Published under an exclusive license by AIP Publishing. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Freelon, B., Rohwer, T., Zong, A., Kogar, A., Zhou, H., Wong, L. J., Ergeçen, E. & Gedik, N. (2023). Design and construction of a compact, high-repetition-rate ultrafast electron diffraction instrument. Review of Scientific Instruments, 94(5), 053305-1 - 053305-11 and may be found at https://doi.org/10.1063/5.0094278 application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Ultrafast Electron Diffraction Condensed matter Freelon, Byron Rohwer, Timm Zong, Alfred Kogar, Anshul Zhou, Hengyun Wong, Liang Jie Ergeçen, Emre Gedik, Nuh Design and construction of a compact, high-repetition-rate ultrafast electron diffraction instrument |
| title | Design and construction of a compact, high-repetition-rate ultrafast electron diffraction instrument |
| title_full | Design and construction of a compact, high-repetition-rate ultrafast electron diffraction instrument |
| title_fullStr | Design and construction of a compact, high-repetition-rate ultrafast electron diffraction instrument |
| title_full_unstemmed | Design and construction of a compact, high-repetition-rate ultrafast electron diffraction instrument |
| title_short | Design and construction of a compact, high-repetition-rate ultrafast electron diffraction instrument |
| title_sort | design and construction of a compact high repetition rate ultrafast electron diffraction instrument |
| topic | Engineering::Electrical and electronic engineering Ultrafast Electron Diffraction Condensed matter |
| url | https://hdl.handle.net/10356/169315 |
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