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Brightness optimization in Thomson backscatteringprocesses
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. (FREIA)
2015 (English)Report (Other academic)
Abstract [en]

The generation of high-brightness femtosecond x-ray pulses enables explorationof so far largely unexplored areas of atomic physics, and also enables highcontrast images of biological tissue. The use of Thomson backscattering with high energyelectrons provides a new way to produce high brightness x-ray pulses, which is considerablycheaper than other techniques. We present a general description of Thomsonscattering and take into account laser and electron focus effects. We also consider theeffect of energy spread within the electron bunches and consider collisions at arbitrarycollision angles. We also investigate flattening and chirped laser pulses, the consequenteffect on the brightness and total number of scattering events. The optimization is thenperformed with respect to electron bunch energy and energy spread; laser and electronfocus parameters; limitation of bandwidth within the laser pulse. The optimization ofthe brightness is subsequently performed with the help of a genetic algorithm technique.

Place, publisher, year, edition, pages
2015. , 92 p.
Series
FREIA Report, 2015/02
Keyword [en]
X-ray radiation, Thomson backscattering, optical enhancement cavity, electron bunches
National Category
Accelerator Physics and Instrumentation
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-247892OAI: oai:DiVA.org:uu-247892DiVA: diva2:797899
Available from: 2015-03-25 Created: 2015-03-25 Last updated: 2015-03-25Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf