Author: Khodnevych, V.
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MOPMB002 First Measurements of Coherent Smith-Purcell Radiation in the SOLEIL Linac 69
 
  • N. Delerue, J. Barros, S. Jenzer, V. Khodnevych, M.S. Malovytsia
    LAL, Orsay, France
  • N. Hubert, M. Labat
    SOLEIL, Gif-sur-Yvette, France
  • V. Khodnevych
    National Taras Shevchenko University of Kyiv, The Faculty of Physics, Kyiv, Ukraine
  • M.S. Malovytsia
    KhNU, Kharkov, Ukraine
  
  Funding: The authors are grateful for the funding received from the French ANR (contract ANR-12-JS05-0003-01).
An experiment to measure the Coherent Smith-Purcell radiation has been installed in the SOLEIL Linac. Its aim is to produce a map of Smith-Purcell radiation emissions in several planes and compare it with theoretical predictions. Coherent Smith Purcell radiation is produced when a grating is brought close from a sufficiently short charged particles beam. The experiment consist of two detectors with 5 degrees of freedom. These two detectors can be moved around the emission point to measure the intensity of the radiation at different locations. Radiation maps are recorded parasitically by moving the detectors around during normal linac operations. 		 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMB002  
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MOPMB003 Comparison of Coherent Smith-Purcell Radiation and Coherent Transition Radiation 72
 
  • V. Khodnevych, N. Delerue
    LAL, Orsay, France
  • O.A. Bezshyyko, V. Khodnevych
    National Taras Shevchenko University of Kyiv, The Faculty of Physics, Kyiv, Ukraine
  
  Funding: The authors are grateful for the funding received from the French ANR (contract ANR-12-JS05-0003-01) and the IDEATE International Associated Laboratory (LIA) between France and Ukraine.
Smith-Purcell radiation and Transition Radiation are two radiative phenomenon that occur in charged particles accelerators. For both the emission can be significantly enhanced with sufficiently short pulses and both can be used to measure the form factor of the pulse. We compare the yield of these phenomenon in different configurations and look at their application as bunch length monitors, including background filtering and rejection. We apply these calculations to the specific case of the CLIO Free Electron laser. 		 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMB003  
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MOPMB005 Study of Short Bunches at the Free Electron Laser CLIO 78
 
  • V. Khodnevych, N. Delerue, S. Jenzer
    LAL, Orsay, France
  • J.P. Berthet, F. Glotin, J.-M. Ortega, R. Prazeres
    CLIO/ELISE/LCP, Orsay, France
  • V. Khodnevych
    National Taras Shevchenko University of Kyiv, The Faculty of Physics, Kyiv, Ukraine
  
  Funding: The authors are grateful for the funding received from the French ANR (contract ANR-12-JS05-0003-01).
CLIO is a Free Electron Laser based on a thermionic electron gun. In its normal operating mode it delivers electron 8 pulses but studies are ongoing to shorten the pulses to about 1 ps. We report on simulations showing how the pulse can be shortened and the expected signal yield from several bunch length diagnostics (Coherent Transition Radiation, Coherent Smith Purcell Radiation). 		 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMB005  
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