Propagation of Intense Beams through Neutral Gas

The self-pinched transport of intense ion beams in low-pressure background gases is studied using numerical simulations and theoretical analysis. The simulations are carried out in a parameter regime that is similar to proton beam experiments being fielded on the Gamble II pulsed power generator ͓J. D. Shipman, Jr., IEEE Trans. Nucl. Sci. NS-18, 243 ͑1971͔͒ at the Naval Research Laboratory. Simulation parameter variations provide information on scaling with background gas species, gas pressure, beam current, beam energy, injection angles, and boundaries. The simulation results compare well with simple analytic scaling arguments for the gas pressure at which the effective net current should peak and with estimates for the required confinement current. The analysis indicates that the self-pinched transport of intense proton beams produced on Gamble II ͑1.5 MeV, 100 kA, 3 cm radius͒ is expected to occur at gas pressures between 30 and 80 mTorr of He or between 3 and 10 mTorr of Ar. The significance of these results to ion-driven inertial confinement fusion is discussed.

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Aurora Test Cell Electron Beam Environment - Response of Large Loop

Bushell¹,

Manriquez²,

Merkel³

et al. 1983

IEEE Trans. Nucl. Sci.

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Propagation of Intense Beams through Neutral Gas

Cited by 4 publications

References 7 publications

Production of YBa2Cu3O7?x superconducting thin films by pulsed pseudospark electron beam evaporation

Production of YBa2Cu3O7?x superconducting thin films by pulsed pseudospark electron beam evaporation

Numerical simulations of self-pinched transport of intense ion beams in low-pressure gases

Aurora Test Cell Electron Beam Environment - Response of Large Loop

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