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| Title | A Novel Laser Ionized Rb Plasma Source for Plasma Wakefield Accelerators | |||||
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| Abstract | A proton driven plasma wakefield accelerator* is to be conducted at CERN by the AWAKE collaboration. Externally injected electrons are accelerated in a large gradient (~GeV/m) wakefield. The large gradient is achieved by resonant formation of the wakefield by a train of micro-bunches. Transverse modulation of a long (~12 cm) proton bunch by the self modulation instability** creates these plasma wavelength size (~1 mm) micro-bunches. This resonant mechanism brings a strict requirement on the plasma density uniformity, namely % 0.2, in order for the injected electron bunch to remain in the accelerating and focusing phase of the wakefields. We describe the plasma source*** that satisfies this requirement during the beam plasma interaction. Rb vapor with ~10¹⁵ cm⁻³ density is confined in a 10 m long 4 cm diameter, stainless-steel tube which is heated to ~200 Co by an oil heat exchanger. The access to the source during interaction is provided by custom built fast valves. The vapor is fully tunnel ionized (first e-) by a laser forming a 2 mm diameter plasma channel. | |||||
| Footnotes & References | * http://awake.web.cern.ch/awake/ ** http://link.aps.org/doi/10.1103/PhysRevLett.104.255003 *** http://dx.doi.org/10.1016/j.nima.2013.10.093 |
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| Funding | AWAKE collaboration | |||||
| Paper | download TUPME073.PDF [2.005 MB / 3 pages] | |||||
| Export | download ※ BibTeX ※ LaTeX ※ Text/Word ※ RIS ※ EndNote | |||||
| Conference | IPAC2014, Dresden, Germany | |||||
| Series | International Particle Accelerator Conference (5th) | |||||
| Proceedings | Link to full IPAC2014 Proccedings | |||||
| Session | Poster Session, Messi Area | |||||
| Date | 17-Jun-14 16:00–18:00 | |||||
| Main Classification | 03 Particle Sources and Alternative Acceleration Techniques | |||||
| Sub Classification | A22 Plasma Wakefield Acceleration | |||||
| Keywords | plasma, laser, wakefield, proton, electron | |||||
| Publisher | JACoW Publishing, Geneva, Switzerland | |||||
| Editors | Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Gianluigi Arduini (CERN, Geneva, Switzerland); Peter Michel (HZDR, Dresden, Germany); Volker RW Schaa (GSI, Darmstadt, Germany) | |||||
| ISBN | 978-3-95450-132-8 | |||||
| Published | July 2014 | |||||
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