Always private
DuckDuckGo never tracks your searches.
Learn More
You can hide this reminder in Search Settings
All regions
Argentina
Australia
Austria
Belgium (fr)
Belgium (nl)
Brazil
Bulgaria
Canada (en)
Canada (fr)
Catalonia
Chile
China
Colombia
Croatia
Czech Republic
Denmark
Estonia
Finland
France
Germany
Greece
Hong Kong
Hungary
Iceland
India (en)
Indonesia (en)
Ireland
Israel (en)
Italy
Japan
Korea
Latvia
Lithuania
Malaysia (en)
Mexico
Netherlands
New Zealand
Norway
Pakistan (en)
Peru
Philippines (en)
Poland
Portugal
Romania
Russia
Saudi Arabia
Singapore
Slovakia
Slovenia
South Africa
Spain (ca)
Spain (es)
Sweden
Switzerland (de)
Switzerland (fr)
Taiwan
Thailand (en)
Turkey
Ukraine
United Kingdom
US (English)
US (Spanish)
Vietnam (en)
Safe search: moderate
Strict
Moderate
Off
Any time
Any time
Past day
Past week
Past month
Past year
  1. pubs.aip.org

    Doughnut shaped laser pulses described by lasers with higher order Laguerre-Gaussian modes can excite doughnut shaped plasma waves that are suitable for positron acceleration in strongly non-linear regimes. The onset of positron focusing and acceleration occurs when the the inner doughnut shaped wakefield electron sheath merges on axis, creating an excess negative charge that can focus ...
  2. Was this helpful?
  3. link.aps.org

    A finite radius plasma is proposed to generate wakefields that can focus and accelerate positron beams in a plasma wakefield accelerator. The finite radius plasma reduces the restoring force acting on the plasma electrons forming the plasma wakefield, resulting in an elongation of the on-axis return point of the electrons and, hence, creating a long, high-density electron filament. This ...
  4. link.aps.org

    Mar 5, 2024The primary issue is electron motion; the high mobility of plasma electrons compared to plasma ions, which leads to nonuniform accelerating and focusing fields that degrade the beam quality of the positron bunch, particularly for high efficiency acceleration. Finally, we discuss possible mitigation strategies and directions for future research.
  5. journals.aps.org

    In a plasma wakefield accelerator (PWFA), an ultrarelativistic, high-density, charged-particle beam propagates through a plasma driving a wake which can sustain large electric fields. In the highly nonlinear blowout [2] or bubble [3] regime all plasma electrons are expelled from the drive beam propagation axis and an ion cavity is formed.
  6. journals.aps.org

    High-quality positron acceleration with sub-percent-level energy spread is possible in beam driven plasma wakefield accelerators. Utilizing an electron drive beam and a narrow plasma column allows for high-charge, and low-emittance positron beams.
  7. ncbi.nlm.nih.gov

    National Center for Biotechnology Information

    https://www.ncbi.nlm.nih.gov › pmc › articles › PMC5660186

    We report the demonstration of the energy gain by a distinct trailing positron bunch in a plasma wakefield accelerator, spanning nonlinear to quasi-linear regimes, and unveil the beam loading process underlying the accelerator energy efficiency.
  8. Can’t find what you’re looking for?

    Help us improve DuckDuckGo searches with your feedback

Custom date rangeX