Femtosecond x-ray pulses at 0.4 Å generated by 90° Thomson scattering: A tool for probing the structural dynamics of materials

Science

Volumn 274, Issue 5285, 1996, Pages 236-238

  Schoenlein, R W ^a   Leemans, W P ^a   Chin, A H ^b   Volfbeyn, P ^a   Glover, T E ^a   Balling, P ^a   Zolotorev, M ^a   Kim, K J ^a   Chattopadhyay, S ^a   Shank, C V ^a,b  

^a LAWRENCE BERKELEY NATIONAL LABORATORY   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; ATOMIC PARTICLE; ELECTROMAGNETIC RADIATION; ELECTRON BEAM; GEOMETRY; LASER; LIGHT SCATTERING; LINEAR ACCELERATOR; MATERIALS; MOTION; PRIORITY JOURNAL; RADIATION SCATTERING; VIBRATION;

EID: 5744240015     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.274.5285.236     Document Type: Article

References (24)

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10. x-rays ∝ ψ.
11. Tighter focusing (or increased emittance) results in a larger electron-beam divergence and a broader scattered x-ray spectrum (see Eq. 4). The electron-beam size in this work represents a compromise of x-ray pulse duration, spectral bandwidth, and beam divergence.
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13. We conducted the experiments at the Beam Test Facility of the Center for Beam Physics at the Berkeley Laboratory, using the linac injector for the Advanced Light Source. See W. Leemans et al., in Advanced Accelerator Concepts - AIP Conference Proceedings 335, P. Schoessow, Ed. (American Institute of Physics, New York, 1994), p. 209.
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18. A phase-locked loop dynamically controlled the cavity length of the mode-locked femtosecond laser to maintain timing synchronization with the linac. The phase-error signal was generated by the mixing of the fourth radio-frequency (rf) harmonic of the laser repetition frequency (generated from a photodiode) with the 500-MHz master rf source for the linac. See M. J. W. Rodwell, D. M Bloom, K. J. Weingarten, IEEE J. Quant. Electron. 25, 817 (1989).
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24. This work was supported by the Department of Energy (DOE) under contract AC03-76SF0009B and by the National Science Foundation under granl PHY-9512693. P.V. was supported under DOE contract FDDEFG-03-95ER-40936. T.E.G. was supported by a DOE Distinguished Postdoctoral Research Fellowship. The work of P. B. was supported by the Danish National Research Council. We gratefully acknowledge the support of T. Byrne and the Advanced Light Source operations crew.