"At the orbit of the earth the average solar wind consists of a strongly ionized gas having a proton and electron density of about 3 - 10 particles per cubic centimeter, with an average flow velocity of approximately 400 km/s."
https://umbra.nascom.nasa.gov/spartan/the_solar_wind.html
"ionized hydrogen (electrons and protons) with an 8% component of helium and trace amounts of heavy ions."
https://umbra.nascom.nasa.gov/spartan/the_solar_wind.html
"Solar wind is what's known as a plasma, a heated gas made up of charged particles — primarily protons and electrons, with trace amounts of heavier elements such as helium and oxygen. The amount of heavy elements and their charge state, or number of electrons, differ between the two types of wind."
https://www.nasa.gov/feature/goddard/2016/swept-up-in-the-solar-wind
"A particle accelerator is a circular loop of pipe that, in cross-section, is oval.
In a physics laboratory, most of the air in it is pumped out. The pipe loop is given a static electric charge, a small amount of hydrogen or other gas is given the same electric charge so the particles won't stick to the pipe.
A set of electromagnets all around the pipe loop turn on and off, one after the other, pushing with one magnetic pole and pulling with the next, until those gas particles are racing around the pipe loop at nearly the speed of light.
Centrifugal force makes the particles speed closer to the outside edge of the pipe loop, still within the pipe. The particles break down into electrons, or light and other wavelengths, protons or cosmic rays, and neutrons if more than hydrogen is put in the accelerator.
At least 2 particle accelerators are used to balance each other and counter each other's tendency to make the craft spin. Otherwise, the machine would tend to want to start spinning, following the direction of the force being applied to the particles. The accelerators push in opposite directions.
As the pilot and crew travel in space, outside the magnetic field of a world, water from a tank is electrically separated into oxygen and hydrogen. Waste carbon dioxide that isn't used for the onboard garden, and hydrogen (helium if the machine is using a fusion reactor) is slowly, constantly fed into the inside curves of both accelerators.
The high speed particles go out through straight lengths of pipe, charged like the loops and in speeding out into space, push the machine along. Doors control which pips the particles leave from. This allows very long range acceleration and later deceleration at normal (earth) gravity."
https://nexusnewsfeed.com/article/science-futures/nikola-tesla-s-flying-saucer-electromagnetic-field-lift-experiments/
"particle accelerators can accelerate positively charged hydrogen ions (protons) until their velocity approaches the speed of light. Each ion has a kinetic energy range of 100-1000+ MeV. The resulting high energy protons can capture electrons from electron emitter electrodes, and be thus electrically neutralized. This creates an electrically neutral beam of high energy hydrogen atoms, that can proceed in a straight line at near the speed of light"
https://en.wikipedia.org/wiki/Particle-beam_weapon