Ultrafast time-resolved 2D imaging of laser-driven fast electron transport in solid density matter using an x-ray free electron laser
Abstract
High-power, short-pulse laser-driven fast electrons can rapidly heat and ionize a high-density target before it hydrodynamically expands. The transport of such electrons within a solid target has been studied using two-dimensional (2D) imaging of electron-induced Kα radiation. However, it is currently limited to no or picosecond scale temporal resolutions. Here, we demonstrate femtosecond time-resolved 2D imaging of fast electron transport in a solid copper foil using the SACLA x-ray free electron laser (XFEL). An unfocused collimated x-ray beam produced transmission images with sub-micron and ∼10 fs resolutions. The XFEL beam, tuned to its photon energy slightly above the Cu K-edge, enabled 2D imaging of transmission changes induced by electron isochoric heating. Time-resolved measurements obtained by varying the time delay between the x-ray probe and the optical laser show that the signature of the electron-heated region expands at ∼25% of the speed of light in a picosecond duration. Time-integrated Cu Kα images support the electron energy and propagation distance observed with the transmission imaging. The x-ray near-edge transmission imaging with a tunable XFEL beam could be broadly applicable for imaging isochorically heated targets by laser-driven relativistic electrons, energetic protons, or an intense x-ray beam.
- Authors:
-
[1];
[2];
[3];
[3];
[3];
[3];
[4];
[5];
[3];
[6];
[7];
[2];
[5];
[6];
[6];
[3]
- Univ. of Nevada, Reno, NV (United States)
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo (Japan); RIKEN SPring-8 Center, Sayo, Hyogo (Japan)
- Osaka Univ. (Japan)
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Univ. of Alberta, Edmonton, AB (Canada)
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- RIKEN SPring-8 Center, Sayo, Hyogo (Japan)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES); National Science Foundation (NSF); Japan Society for the Promotion of Science (JSPS) (KAKENHI); Natural Sciences and Engineering Research Council of Canada (NSERC); USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1989352
- Alternate Identifier(s):
- OSTI ID: 1963356; OSTI ID: 2205284
- Report Number(s):
- LLNL-JRNL-842442
Journal ID: ISSN 0034-6748; TRN: US2403911
- Grant/Contract Number:
- AC02-76SF00515; AC52-07NA27344; 1707357; 2010502; JP20H00140; 20K14439; JP19KK0072; 17H02996; SCW 1265; SCW 1420; FWP 100182; 17H06202; JPJSCCB20190003
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Review of Scientific Instruments
- Additional Journal Information:
- Journal Volume: 94; Journal Issue: 3; Journal ID: ISSN 0034-6748
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; Hard X-rays; X-ray pump-probe experiments; Electron beam irradiation; Time resolved imaging; X-ray imaging; Free electron lasers; High energy density physics; Laser plasma interactions; Solid state plasma
Citation Formats
Sawada, Hiroshi, Yabuuchi, Toshinori, Higashi, Naoki, Iwasaki, T., Kawasaki, Koki, Maeda, Y., Izumi, T., Nakagawa, Y., Shigemori, Keisuke, Sakawa, Youichi, Curry, Chandra Breanne, Frost, Mungo, Iwata, Natsumi, Ogitsu, Tadashi, Sueda, Keiichi, Togashi, Tadashi, Glenzer, Siegfried H., Kemp, Andreas J., Ping, Yuan, and Sentoku, Yasuhiko. Ultrafast time-resolved 2D imaging of laser-driven fast electron transport in solid density matter using an x-ray free electron laser. United States: N. p., 2023.
Web. doi:10.1063/5.0130953.
Sawada, Hiroshi, Yabuuchi, Toshinori, Higashi, Naoki, Iwasaki, T., Kawasaki, Koki, Maeda, Y., Izumi, T., Nakagawa, Y., Shigemori, Keisuke, Sakawa, Youichi, Curry, Chandra Breanne, Frost, Mungo, Iwata, Natsumi, Ogitsu, Tadashi, Sueda, Keiichi, Togashi, Tadashi, Glenzer, Siegfried H., Kemp, Andreas J., Ping, Yuan, & Sentoku, Yasuhiko. Ultrafast time-resolved 2D imaging of laser-driven fast electron transport in solid density matter using an x-ray free electron laser. United States. https://doi.org/10.1063/5.0130953
Sawada, Hiroshi, Yabuuchi, Toshinori, Higashi, Naoki, Iwasaki, T., Kawasaki, Koki, Maeda, Y., Izumi, T., Nakagawa, Y., Shigemori, Keisuke, Sakawa, Youichi, Curry, Chandra Breanne, Frost, Mungo, Iwata, Natsumi, Ogitsu, Tadashi, Sueda, Keiichi, Togashi, Tadashi, Glenzer, Siegfried H., Kemp, Andreas J., Ping, Yuan, and Sentoku, Yasuhiko. Fri .
"Ultrafast time-resolved 2D imaging of laser-driven fast electron transport in solid density matter using an x-ray free electron laser". United States. https://doi.org/10.1063/5.0130953. https://www.osti.gov/servlets/purl/1989352.
@article{osti_1989352,
title = {Ultrafast time-resolved 2D imaging of laser-driven fast electron transport in solid density matter using an x-ray free electron laser},
author = {Sawada, Hiroshi and Yabuuchi, Toshinori and Higashi, Naoki and Iwasaki, T. and Kawasaki, Koki and Maeda, Y. and Izumi, T. and Nakagawa, Y. and Shigemori, Keisuke and Sakawa, Youichi and Curry, Chandra Breanne and Frost, Mungo and Iwata, Natsumi and Ogitsu, Tadashi and Sueda, Keiichi and Togashi, Tadashi and Glenzer, Siegfried H. and Kemp, Andreas J. and Ping, Yuan and Sentoku, Yasuhiko},
abstractNote = {High-power, short-pulse laser-driven fast electrons can rapidly heat and ionize a high-density target before it hydrodynamically expands. The transport of such electrons within a solid target has been studied using two-dimensional (2D) imaging of electron-induced Kα radiation. However, it is currently limited to no or picosecond scale temporal resolutions. Here, we demonstrate femtosecond time-resolved 2D imaging of fast electron transport in a solid copper foil using the SACLA x-ray free electron laser (XFEL). An unfocused collimated x-ray beam produced transmission images with sub-micron and ∼10 fs resolutions. The XFEL beam, tuned to its photon energy slightly above the Cu K-edge, enabled 2D imaging of transmission changes induced by electron isochoric heating. Time-resolved measurements obtained by varying the time delay between the x-ray probe and the optical laser show that the signature of the electron-heated region expands at ∼25% of the speed of light in a picosecond duration. Time-integrated Cu Kα images support the electron energy and propagation distance observed with the transmission imaging. The x-ray near-edge transmission imaging with a tunable XFEL beam could be broadly applicable for imaging isochorically heated targets by laser-driven relativistic electrons, energetic protons, or an intense x-ray beam.},
doi = {10.1063/5.0130953},
journal = {Review of Scientific Instruments},
number = 3,
volume = 94,
place = {United States},
year = {Fri Mar 24 00:00:00 EDT 2023},
month = {Fri Mar 24 00:00:00 EDT 2023}
}
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