Femtosecond Diffractive Imaging with a Soft-X-Ray Free-Electron Laser

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Theory predicts that with an ultrashort and extremely bright coherent X-ray pulse, a single diffraction pattern may be recorded from a large macromolecule, a virus, or a cell before the sample explodes and turns into a plasma. Here we report the first experimental demonstration of this principle using the FLASH soft X-ray free-electron laser. An intense 25 fs, 4 x 10{sup 13} W/cm{sup 2} pulse, containing 10{sup 12} photons at 32 nm wavelength, produced a coherent diffraction pattern from a nano-structured non-periodic object, before destroying it at 60,000 K. A novel X-ray camera assured single photon detection sensitivity by filtering ... continued below

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Bogan, Michael James October 7, 2010.

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Theory predicts that with an ultrashort and extremely bright coherent X-ray pulse, a single diffraction pattern may be recorded from a large macromolecule, a virus, or a cell before the sample explodes and turns into a plasma. Here we report the first experimental demonstration of this principle using the FLASH soft X-ray free-electron laser. An intense 25 fs, 4 x 10{sup 13} W/cm{sup 2} pulse, containing 10{sup 12} photons at 32 nm wavelength, produced a coherent diffraction pattern from a nano-structured non-periodic object, before destroying it at 60,000 K. A novel X-ray camera assured single photon detection sensitivity by filtering out parasitic scattering and plasma radiation. The reconstructed image, obtained directly from the coherent pattern by phase retrieval through oversampling, shows no measurable damage, and extends to diffraction-limited resolution. A three-dimensional data set may be assembled from such images when copies of a reproducible sample are exposed to the beam one by one.

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  • Journal Name: arXiv:physics/0610044

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  • Report No.: SLAC-PUB-14272
  • Grant Number: AC02-76SF00515
  • DOI: 10.2172/992877 | External Link
  • Office of Scientific & Technical Information Report Number: 992877
  • Archival Resource Key: ark:/67531/metadc1012361

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Office of Scientific & Technical Information Technical Reports

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  • October 7, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Nov. 2, 2017, 8:11 p.m.

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Bogan, Michael James. Femtosecond Diffractive Imaging with a Soft-X-Ray Free-Electron Laser, article, October 7, 2010; [California]. (digital.library.unt.edu/ark:/67531/metadc1012361/: accessed April 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.