Laser-electron Compton interaction in plasma channels

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Description

A concept of high intensity femtosecond laser synchrotron source (LSS) is based on Compton backscattering of focused electron and laser beams. The short Rayleigh length of the focused laser beam limits the length of interaction to a few picoseconds. However, the technology of the high repetition rate high-average power picosecond lasers required for high put through LSS applications is not developed yet. Another problem associated with the picosecond laser pulses is undesirable nonlinear effects occurring when the laser photons are concentrated in a short time interval. To avoid the nonlinear Compton scattering, the laser beam has to be split, and ... continued below

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17 p.

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Pogorelsky, I.V.; Ben-Zvi, I. & Hirose, T. October 1, 1998.

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Description

A concept of high intensity femtosecond laser synchrotron source (LSS) is based on Compton backscattering of focused electron and laser beams. The short Rayleigh length of the focused laser beam limits the length of interaction to a few picoseconds. However, the technology of the high repetition rate high-average power picosecond lasers required for high put through LSS applications is not developed yet. Another problem associated with the picosecond laser pulses is undesirable nonlinear effects occurring when the laser photons are concentrated in a short time interval. To avoid the nonlinear Compton scattering, the laser beam has to be split, and the required hard radiation flux is accumulated over a number of consecutive interactions that complicates the LSS design. In order to relieve the technological constraints and achieve a practically feasible high-power laser synchrotron source, the authors propose to confine the laser-electron interaction region in the extended plasma channel. This approach permits to use nanosecond laser pulses instead of the picosecond pulses. That helps to avoid the nonlinear Compton scattering regime and allows to utilize already existing technology of the high-repetition rate TEA CO{sub 2} lasers operating at the atmospheric pressure. They demonstrate the advantages of the channeled LSS approach by the example of the prospective polarized positron source for Japan Linear Collider.

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17 p.

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INIS; OSTI as DE99000910

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  • Other Information: PBD: Oct 1998

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  • Other: DE99000910
  • Report No.: BNL--65907
  • Grant Number: AC02-98CH10886
  • DOI: 10.2172/291126 | External Link
  • Office of Scientific & Technical Information Report Number: 291126
  • Archival Resource Key: ark:/67531/metadc680195

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  • October 1, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Nov. 9, 2015, 8:06 p.m.

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Pogorelsky, I.V.; Ben-Zvi, I. & Hirose, T. Laser-electron Compton interaction in plasma channels, report, October 1, 1998; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc680195/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.