Compton scattering in the ALS booster

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Femtosecond x-ray pulses may be generated by 90{degrees} Compton side scattering of a short visible laser beam by a well-focused relativistic electron beam. A proof-of-principle experiment is underway using the ALS linac. From this experiment an x-ray pulse of 10{sup 5} photons with a duration of 230 fs in a bandwidth of 10% at 10 Hz is expected. In this paper we explore using the ALS booster instead to increase the average x-ray flux. To generate the small beam size we plan to radiation damp electrons by accelerating them to 600 MeV and decelerate quickly to 50 MeV before intra-beam ... continued below

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3 p.

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Robin, D.; Kim, C. & Sessler, A. April 1, 1995.

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Femtosecond x-ray pulses may be generated by 90{degrees} Compton side scattering of a short visible laser beam by a well-focused relativistic electron beam. A proof-of-principle experiment is underway using the ALS linac. From this experiment an x-ray pulse of 10{sup 5} photons with a duration of 230 fs in a bandwidth of 10% at 10 Hz is expected. In this paper we explore using the ALS booster instead to increase the average x-ray flux. To generate the small beam size we plan to radiation damp electrons by accelerating them to 600 MeV and decelerate quickly to 50 MeV before intra-beam scattering can increase the beam size. We can achieve a vertical emittance of <5 {times} 10{sup {minus}9} m-rad. With a small modification of the booster lattice it is possible to focus the beam to a vertical beta function of {Beta}{sub y}* = 10 cm. By reflecting the incident laser pulse many times we expect to be able to obtain an increase of the average x-ray flux.

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3 p.

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OSTI as DE96000145

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  • 16. Institute of Electrical and Electronic Engineers (IEEE) particle accelerator conference, Dallas, TX (United States), 1-5 May 1995

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  • Other: DE96000145
  • Report No.: LBL--37151
  • Report No.: LSGN--206;CONF-950512--322
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 110797
  • Archival Resource Key: ark:/67531/metadc628489

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Office of Scientific & Technical Information Technical Reports

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 1, 1995

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  • June 16, 2015, 7:43 a.m.

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  • April 4, 2016, 9:09 p.m.

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Robin, D.; Kim, C. & Sessler, A. Compton scattering in the ALS booster, article, April 1, 1995; California. (digital.library.unt.edu/ark:/67531/metadc628489/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.