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Channeling 2018

Sep 23 – 28, 2018
Europe/Rome timezone

Session

S5.1 Novel Sources: FEL/Laser/Plasma

Sep 25, 2018, 4:50 PM

Conveners

S5.1 Novel Sources: FEL/Laser/Plasma

  • Sultan Dabagov (LNF)

Presentation materials

There are no materials yet.

  1. 7. Free Electron Laser and CARM Devices: A Unified Point of View
    Prof. Giuseppe Dattoli (ENEA)
    9/25/18, 4:50 PM
    Oral presentation
    Review of undulator based Free Electron laser (U-FEL) theory Review of CARM (Coherent Auto Resonance Maser) theory Analysis of analogies and differences Development of a common theoretical framework Presentation of the ENEA Frascati CARM experiment
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  2. 114. Radiation of Twisted Photons in Periodical Structures in the Classical Regime
    Dr Peter Kazinski (Tomsk State University)
    9/25/18, 5:20 PM
    Oral presentation
    It is known [1,2] that the radiation produced by classical sources may possess a well-defined projection of the angular momentum. Such a radiation is convenient to represent as a collection of the so-called twisted photons, i.e., the photons with definite the energy, the longitudinal projection of momentum, the projection of the total angular momentum, and the helicity. At present, the twisted...
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  3. 199. Dual Color X-Rays Production from Thomson or Compton Sources at THU
    Dr Lixin YAN (Accelerator Lab, Tsinghua University, Beijing)
    9/25/18, 5:35 PM
    Oral presentation
    Recently, the dual color X-rays production from Thomson/Compton sources has been demonstrated on the high brightness linac at Accelerator Laboratory of Tsinghua University (THU). We present two simple schemes for producing two-color Thomson/Compton radiation with the possibility of controlling time separation of the two different colors, respectively based on the interaction of one single...
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  4. 18. Compton Scattering in Delayed Counter-Propagating Laser Beams Irradiating Solid Target
    Ms yuan zhao (Miss)
    9/25/18, 5:50 PM
    Oral presentation
    In the realm of quantum dynamics, electrons can absorb one or several photons and emit a photon with higher energy through Compton scattering. A novel scheme, i.e. using electrons accelerated by laser-plasma interaction to collide head-on with laser to create ultra-bright γ-rays has already attracted lots of attention in the past decades. However, the number of accelerated electrons is limited...
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  5. 115. Timing Resolution in Aligned PWO Crystal Scintillators
    Prof. Alexander Lobko (Institute for Nuclear Problems, Belarusian State University)
    9/25/18, 6:05 PM
    Oral presentation
    Evaluation of crystal effects in the PWO scintillator of the CMS electromagnetic calorimeter showed that the peak of the electromagnetic shower shifts by 2-4 radiation lengths to its entry surface [1]. Shower development acceleration also affects timing resolution of a crystal calorimeter. In current study we used the similar approach like in [1], in order to get in-depth understanding of PWO...
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  6. 15. Towards Positron Acceleration and High Quality Preservation in Nonlinear Wakefields in Hollow Plasma
    Ms Yangmei Li (University of Manchester, Cockcroft Institute)
    9/25/18, 6:20 PM
    Oral presentation
    Unlike electrons, it is difficult to accelerate positrons in the blowout regime as the positive charges are quickly expelled away from the bubble by the background ions therein. To obtain an acceptable efficiency, it requires precisely placing the positrons in the narrow region of plasma electrons with a peak density. In addition, the transverse nonlinearity of the accelerating field results...
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