Experiments are described which show that pulsed high intensity electron beams can accelerate light ions to high energies. A set of time‐of‐flight measurements shows proton and deuteron energies of 5 MeV, helium ion energies of 9 MeV, and nitrogen ion energies of about 20 MeV, produced by an electron beam with a maximum electron energy of 1.6 MeV. These measurements are confirmed by Be9 (x, n) reactions for protons, deuterons, and helium ions. Further confirmation is made with an absorber measurement for the protons.

Observation of Energetic Ions from a Beam‐Generated Plasma

A theoretical analysis is presented of the interaction between a monoenergetic relativistic electron beam and a bounded plasma and the conditions for the generation of electromagnetic radiation in a single mode by such a system are derived. Two specific geometries are considered: (a) a metallic waveguide of radius R, completely filled with plasma which is penetrated by a beam of the same radius and (b) a plasma cylinder of radius r0, with a hollow beam flowing along it and filling a metallic waveguide of radius R>r0. The spectra and growth rates of the excited oscillations are established and the generation efficiencies calculated.

The excitation of coherent electromagnetic radiation in plasma waveguides by relativistic electron beams

Gaseous ion lasers

https://iopscience.iop.org/article/10.1070/PU1999v042n01ABEH000447/pdf

Laser-plasma acceleration of electrons

Collective acceleration methods that employ an intense relativistic electron beam (IREB) are discussed. A brief history and a classification of collective acceleration methods are given. Methods examined include IREB injection into neutral gas; IREB injection into vacuum; plasma-filled IREB diodes; and vacuum-filled IREB diodes. Accelerating fields of order 106 V/cm have been observed experimentally. The collective acceleration processes for IREB injection into neutral gas and vacuum are discussed. It is noted that the collective acceleration processes for IREB diodes have not been elucidated yet. A summary of present collective ion acceleration research areas that involve IREB's is given.

Collective Acceleration with Intense Electron Beams

https://iopscience.iop.org/article/10.1070/PU1968v010n06ABEH003715/pdf

Acceleration of charged particles in a plasma

Collective Methods of Particle Acceleration in a Plasma and in Heavy-Current Electron Beams

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Acceleration of charged particles in a plasma

Collective Methods of Particle Acceleration in a Plasma and in Heavy-Current Electron Beams