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Persistent URL
http://purl.org/net/epubs/work/38120588
Record Status
Checked
Record Id
38120588
Title
Optical Beam Quality Analysis of the Clara Test Facility Using Second Moment Analysis
Contributors
HM Castaneda Cortes (STFC Daresbury Lab.)
,
DJ Dunning (STFC Daresbury Lab.)
,
MD Roper (STFC Daresbury Lab.)
,
NL Thompson (STFC Daresbury Lab.)
Abstract
We studied and characterised the FEL optical radiation in simulations of the CLARA FEL test facility under development at Daresbury Laboratory in the UK. In particular, we determined the optical beam quality coefficient, waist position and other source properties corresponding to different potential FEL operating modes via wavefront propagation in free space using OPC (Optical Propagation Code) and Second Moment Analysis. We were able to find the operation mode and undulator design for which the optical beam has the optimum quality at highest brightness. Furthermore, we studied the way that different properties of the electron bunches (emittance, peak current, bunch length) affect the optical beam. We are now able to understand how the optical beam will propagate from the end of the undulator and through the photon transport system to the experimental stations. This knowledge is necessary for the correct design of the photon transport and diagnostic systems.
Organisation
ASTeC
,
STFC
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Language
English (EN)
Type
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Paper In Conference Proceedings
In 38th International Free Electron Laser Conferenc (FEL2017), Santa Fe, NM, USA, 20-25 Aug 2017, (2017): 535-538.
https://doi.org/1…JACoW-FEL2017-WEP062
2017
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