High Power Picosecond Laser Pulse Recirculation

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We propose a novel high peak power ultrashort laser pulse re-circulation technique suitable for gamma-ray generation in Compton-backscattering sources. The two primary obstacles to higher average brightness and conversion efficiency of laser pulse energy to gamma-rays are the relatively small Compton scattering cross-section and the typically low repetition rates of Joule-class interaction lasers (10 Hz). Only a very small fraction (10{sup -10}) of the available laser photons is converted to gamma-rays, while the bulk is discarded. To significantly reduce the average power requirements of the laser and increase the overall system efficiency, we can re-circulate laser light for repeated interactions.

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Shverdin, M; Jovanovic, I; Gibson, D; Hartemann, F; Brown, C; Anderson, S et al. April 23, 2007.

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We propose a novel high peak power ultrashort laser pulse re-circulation technique suitable for gamma-ray generation in Compton-backscattering sources. The two primary obstacles to higher average brightness and conversion efficiency of laser pulse energy to gamma-rays are the relatively small Compton scattering cross-section and the typically low repetition rates of Joule-class interaction lasers (10 Hz). Only a very small fraction (10{sup -10}) of the available laser photons is converted to gamma-rays, while the bulk is discarded. To significantly reduce the average power requirements of the laser and increase the overall system efficiency, we can re-circulate laser light for repeated interactions.

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PDF-file: 3 pages; size: 58.3 Kbytes

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  • Presented at: Posipol 2007 Workshop, Orsay, France, May 23 - May 25, 2007

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  • Report No.: UCRL-PROC-230727
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 909926
  • Archival Resource Key: ark:/67531/metadc878715

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Office of Scientific & Technical Information Technical Reports

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  • April 23, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 9, 2016, 8:08 p.m.

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Shverdin, M; Jovanovic, I; Gibson, D; Hartemann, F; Brown, C; Anderson, S et al. High Power Picosecond Laser Pulse Recirculation, article, April 23, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc878715/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.