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Measurement and calculation of the `Electron efficiency'on the `CLIO' Free-Electron Laser

Published online by Cambridge University Press:  21 December 2004

R. Prazeres ,
F. Glotin  and
J. M. Ortega
R. Prazeres*
Affiliation:
LURE, Bât. 209D, BP 34, 91898 Orsay Cedex, France
F. Glotin
Affiliation:
LURE, Bât. 209D, BP 34, 91898 Orsay Cedex, France
J. M. Ortega
Affiliation:
LURE, Bât. 209D, BP 34, 91898 Orsay Cedex, France
*
rui.prazeres@lure.u-psud.fr
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Abstract

This paper describe the recent measurements of `Electron efficiency' which has been done with the `CLIO' Free-electron laser (FEL). The `Electron efficiency' is the relative energy loss of the electron beam in the undulator during the FEL interaction. It gives an absolute measurement of the optical power produced by the FEL, which is then compared to the direct measurement using a power meter at the exit of the FEL. A analytical expression of the `Electron efficiency' is given here, and it is compared to the measurements.

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Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 29 , Issue 3 , March 2005 , pp. 223 - 230
Copyright
© EDP Sciences, 2005

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References

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R. Prazeres, F. Glotin, J.M. Ortega, to be published in Nucl. Instrum. Meth., proceedings of the FEL'2003 conference