| Paper | Title | Page |
|---|---|---|
| TUPO078 | Extension of Busch’s Theorem to Particle Beams | 516 |
| TUOP09 | use link to see paper's listing under its alternate paper code | |
|
||
| In 1926, H. Busch formulated a theorem for one single charged particle moving along a region with longitudinal magnetic field. The theorem relates particle angular momentum to the amount of field lines being enclosed by the particle cyclotron motion. Recently it has been extended to accelerated particle beams [Phys. Rev. Accel. Beams 21 014201 (2018)]. This contribution sketches this extension and applies the extended theorem to successfully performed emittance manipulations with electron and ion beams. | ||
|
Slides TUPO078 [0.999 MB] | |
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-TUPO078 | |
| About • | paper received ※ 24 August 2018 paper accepted ※ 19 September 2018 issue date ※ 18 January 2019 | |
| Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |
| THPO132 | Study of the Electron Beam Transfer Line for the AWAKE RUN II Experiment at CERN | 962 |
| SPWR036 | use link to see paper's listing under its alternate paper code | |
|
||
|
Proton Beam-Driven Plasma Wakefield Accelerator (PBD-PWFA) has been actively investigated at CERN within the AWAKE experiments to study the electron beam acceleration using plasma wake fields of the order of GV/m. In the AWAKE RUN 1 experiment an electron beam with an energy of 19 MeV and a bunch length of 2.2 ps rms has been used for the first demonstration of electron beam acceleration in the plasma wake fields. It has been observed that the energy gain of the electron beam is up to 2 GeV, and electron capture efficiency is few percent. Higher capturing efficiency and emittance preservation could be achieved by making the electron beam short enough to be injected only into the acceleration and focusing phase of the plasma wake fields. The electron accelerator needs to be upgraded for AWAKE RUN 2 experiments to obtain a bunch length less than 100 fs which corresponds to a quarter of the plasma wavelength. Planned electron beam parameters for the AWAKE RUN 2 are a beam charge of 100 pC, and a beam energy larger than 50 MeV. In this paper, we show the electron beam parameters for RUN 2, and the parameters of the transfer line such as Twiss parameters, beam envelope, and emittance.
UNIST, Ulsan, 44919, Korea Institute For Research in Fundamental Sciences, 19395-5531, Tehran, Iran CERN, Geneva 1211, Switzerland |
||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-THPO132 | |
| About • | paper received ※ 11 September 2018 paper accepted ※ 20 September 2018 issue date ※ 18 January 2019 | |
| Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |