| Paper |
Title |
Page |
| WEPC026 |
Laser – Beam Interaction and Calculation of the Sliced Bunch Radiation Spectra for the SLS FEMTO Beam Line
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2040 |
| |
- D. K. Kalantaryan, G. A. Amatuni, V. M. Tsakanov
CANDLE, Yerevan
- P. Beaud, G. Ingold, A. Streun
PSI, Villigen
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The FEMTO insertion at the Swiss Light Source (SLS) produces sub-ps X-ray pulses by modulating the electron energy in a slice of the bunch through interaction with a fs-laser. The electron energy modulation by the laser field in the wiggler magnet is studied analytically to calculate the radiation spectra from a sliced bunch. The analytical expressions for energy modulation and its envelope have been derived. The radiation spectra in the first magnet after the FEMTO insertion have been studied. The spectra of the coherent part of the radiation are determined using a Fourier transformation technique. For a Gaussian bunch the obtained results are compared with the tracking simulation study.
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| WEPC112 |
The Acceptance and Photon Beam Formation in SLS FEMTO Beamline
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2264 |
| |
- L. M. Hovhannisyan, D. K. Kalantaryan, V. M. Tsakanov
CANDLE, Yerevan
- S. T. Hakobyan
YSU, Yerevan
- A. Streun
PSI, Villigen
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The FEMTO insertion at the Swiss Light Source (SLS) produces sub-ps X-ray pulses by modulating the electron energy in a slice of the bunch through interaction with a fs-laser. The radiation from the sliced bunch in the FEMTO undulator of the SLS storage ring has been studied. Only photons passing all apertures of the beam line arrive at the experiment. We derive the transverse phase space distribution of these photons, the radiation spectra, and the spatial and angular distribution. Transmission of the radiated photons through the FEMTO beamline is calculated using the SRW simulation code in order to evaluate the acceptance of the beamline and the photon beam phase space distribution at the experimental station.
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