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19 June 2003 PLEIADES: a subpicosecond Thomson x-ray source for ultrafast materials probing
David N. Fittinghoff, Paul T. Springer, Christopher P. J. Barty, Winthrop J. Brown, John K. Crane, Robert R. Cross, Todd Ditmire, David J. Gibson, Frederic V. Hartemann, Gregory P. Le Sage, James B. Rosenzweig, Dennis Slaughter, Fred H. Streitz, Aaron Matthew Tremaine, Scott G. Anderson, Jaroslav Kuba, Rex Booth, John Moriarty, Andy McMahan, Hyunchae Cynn, Choong-shik Yoo
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Proceedings Volume 4978, Commercial and Biomedical Applications of Ultrafast Lasers III; (2003) https://doi.org/10.1117/12.478587
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States
Abstract
The use of ultrafast laser pulses to generate very high brightness, ultrashort (10-14 to 10-12 s) pulses of x-rays is a topic of great interest to the x-ray user community. In principle, femtosecond-scale pump-probe experiments can be used to temporally resolve structural dynamics of materials on the time scale of atomic motion. However, further development of this field is severely hindered by the absence of a suitably intense x-ray source that would drive the development of improved experimental techniques and establish a broader range of applicability. We report on a project at the Lawrence Livermore National Laboratory to produce a novel x-ray source and essential experimental techniques that will enable unprecedented dynamic measurements in matter. Based on scattering of a sub-50-fs, multi-terawatt, multi-beam laser from a co-synchronous and highly focused relativistic electron bunch, PLEIADES (Picosecond Laser Electron Interaction for Dynamic Evaluation of Structures) will produce tunable, ultrafast, hard x-ray (10- 200 keV) probes that greatly exceed existing 3rd generation synchrotron sources in speed (100 fs - 1 ps), peak brightness (1020 ph/mm2s mrad2 0.1% BW, and >109 ph/pulse), and simplicity (100-fold smaller). Such bright, ultrafast high energy x-rays will enable pump-probe experiments using radiography, dynamic diffraction, and spectroscopy to address the equation of state and dynamics of phase transitions and structure in laser heated and compressed heavy dense metals of interest for materials science.
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David N. Fittinghoff, Paul T. Springer, Christopher P. J. Barty, Winthrop J. Brown, John K. Crane, Robert R. Cross, Todd Ditmire, David J. Gibson, Frederic V. Hartemann, Gregory P. Le Sage, James B. Rosenzweig, Dennis Slaughter, Fred H. Streitz, Aaron Matthew Tremaine, Scott G. Anderson, Jaroslav Kuba, Rex Booth, John Moriarty, Andy McMahan, Hyunchae Cynn, and Choong-shik Yoo "PLEIADES: a subpicosecond Thomson x-ray source for ultrafast materials probing", Proc. SPIE 4978, Commercial and Biomedical Applications of Ultrafast Lasers III, (19 June 2003); https://doi.org/10.1117/12.478587
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KEYWORDS
X-rays
Electron beams
Picosecond phenomena
Photons
Optical amplifiers
Laser scattering
Oscillators
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