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Free Electron Lasers and Other Advanced Sources of Light Scientific Research Opportunities (1994) / Chapter Skim
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6 X-RAY REGION: 100 to 1
Pages 41-46

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From page 41...
... One of the major advantages cited in justifying the development of this generation of light sources was that many experiments could be run simultaneously from a large number of beamlines. Laser Pumped X-ray Sources Tabletop terawatt lasers, costing $0.5M to $0.8M each, can generate radiation in the spectral range between 5 and 1000 nm by high-order harmonic generation in vapor targets with as much as 10 nJ per harmonic in each pulse.
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From page 42...
... In order to achieve coherent emission in the x-ray range, extremely low emittance, high-energy electron beams have to be developed. The high-quality SLAC linear accelerator beam, developed for the linear collider, could provide the starting point for this project, but the existing SLAC electron beam would have to be upgraded.
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From page 43...
... This cost includes electricity, maintenance of the accelerator, salaries of the operating and support staff, and 40~o indirect costs. It does not include the cost of the scientific programs, salaries of staff scientists and accelerator engineers, general plant costs, and accelerator and facility upgrades.
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From page 44...
... The conclusions of this workshop prompted a second workshop held in February i994 to discuss the possibilities of a hard x-ray FEL operating in the 4.5-A and 1.5-A range. Time-Correlation Spectroscopy Lasers in the infrared and visible wavelength regimes have allowed the study of collective modes, dynamical critical fluctuations near phase transitions, the evolution of conformations and structures, and a host of other phenomena at a distance scale of 100 nm or greater.
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From page 45...
... Atomic resolution demands a high-resolution recording medium and reading capability. The best holographic images, recorded in a high-resolution resist and read out with a scanning tunneling microscope, have achieved a resolution of 560 A
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From page 46...
... While many scientific studies using x-rays produced by an FEL appear to be possible, the feasibility of these studies should first be explored using third-generation synchrotron sources that are just beginning to operate. This exploration, in conjunction with further research and development of x-ray FEL technology, will provide the basis for an informed decision regarding possible future construction of an x-ray FEL facility.
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Key Terms

  • free electron
  • electron beam
  • scientific opportunities
  • electron laser
  • linear accelerator

  • synchrotron radiation
  • total project
  • construction cost
  • slac linear
  • light source

  • workshop held
  • holographic images
  • relativistic electrons
  • equip beamlines
  • tunable radiation

  • transverse coherence
  • critical fluctuations
  • project cost
  • picosecond bursts
  • light sources

  • atoms vaporized
  • channel radiation
  • radiation laboratory
  • radiation center
  • viable source

  • studies using
  • wave propagating
  • explored initially
  • facility upgrades
  • slac electron


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