Long-range attraction of an ultrarelativistic electron beam by a column of neutral plasma
Here, we report on the experimental observation of the attraction of a beam of ultrarelativistic electrons towards a column of neutral plasma. In experiments performed at the FACET test facility at SLAC we observe that an electron beam moving parallel to a neutral plasma column, at an initial distance of many plasma column radii, is attracted into the column. Once the beam enters the plasma it drives a plasma wake similar to that of an electron beam entering the plasma column head-on. A simple analytical model is developed in order to capture the essential physics of the attractive force. The attraction is further studied by 3D particle-in-cell numerical simulations. The results are an important step towards better understanding of particle beam–plasma interactions in general and plasma wakefield accelerator technology in particular.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- 217 AC02-76SF00515; SC0010064; PHY-1415386
- OSTI ID:
- 1328717
- Alternate ID(s):
- OSTI ID: 1328718; OSTI ID: 1369472
- Journal Information:
- New Journal of Physics, Journal Name: New Journal of Physics Vol. 18 Journal Issue: 10; ISSN 1367-2630
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United Kingdom
- Language:
- English
Web of Science
Tailored plasma-density profiles for enhanced energy extraction in passive plasma beam dumps
|
journal | October 2019 |
Similar Records
Plasma wakefield acceleration experiments at FACET II
Producing multi-coloured bunches through beam-induced ionization injection in plasma wakefield accelerator