Simulation of coherent diffraction radiation for SITF Ishkhan

Simulation of coherent diffraction radiation for SITF Ishkhan Gorgisyan École Polytechnique Fédérale de Lausanne, Switzerland Supervisors Peter Peier, Rasmus Ischebeck, Leonid Rivkin Paul Scherrer Institut, Villigen, Switzerland 12/18/2021 1 Ishkhan Gorgisyan

Content • About CDR • System • Simulation • Results • Conclusions and next steps 12/18/2021 2 Ishkhan Gorgisyan

About CDR Radiation power Form factor Coherent radiation 12/18/2021 3 Ishkhan Gorgisyan

System 12/18/2021 4 Ishkhan Gorgisyan

Simulation Beam simulation: Elegant code (by Bolko Beutner) Energy: 239 Mev S-band phases: 0 o, 5 o, 10 o, 15 o, 20 o, 25 o, 30 o, 32 o, 33 o S-band voltage: from 65. 8 MV to 85. 3 MV X-band: 0 o BC angle: 4. 07 o Radiation simulation: THz Transport (by Bernhard Schmidt) Gamma: 467 Bunch charge: 200 p. C Frequency from 0. 1 THz to 25 THz 12/18/2021 5 Ishkhan Gorgisyan

Results Beam profiles for different compressions 12/18/2021 6 Ishkhan Gorgisyan

Results Radiation and computed form factors 12/18/2021 7 Ishkhan Gorgisyan

Results Spectra and integrated radiation 12/18/2021 8 Ishkhan Gorgisyan

Conclusions and the next steps • Physical results • Correspondence to the real machine • Simulations for 10 Pc mode • Calibration of the detectors • Measurements in SITF • Check of the simulations • Usage of high-pass filters 12/18/2021 9 Ishkhan Gorgisyan

Questions? Thank you for attention 12/18/2021 10 Ishkhan Gorgisyan