Title :
Gas-breakdown effects associated with the self-pinched transport of intense light-ion beams
Author :
Ottinger, P.F. ; Rose, David V. ; Oliver, Bryan V. ; Olson, C.L. ; Welch, Dale R.
Author_Institution :
Div. of Plasma Phys., Naval Res. Lab., Washington, DC, USA
Abstract :
Summary form only given. Self-pinched transport (SPT) of intense light-ion beams is being considered for delivering energy to a high-gain, high-yield inertial confinement fusion target. Proton beam SPT experiments are underway on the Gamble II generator at the Naval Research Laboratory. The physics of SPT in low-pressure gas is being analyzed with analytic theory and numerical simulations. A 1-D theory estimates the net current fraction necessary for stable transport as a function of gas density for a given beam profile. SPT simulations using the 3-D hybrid particle-in-cell (PIC) code IPROP determine the beam profile. Important to both theory and simulations is the inclusion of gas-breakdown physics. A comparison between the theory and the self-consistent simulations using IPROP is made.
Keywords :
beam handling techniques; electric breakdown; fusion reactor design; fusion reactors; ion beams; particle beam injection; plasma inertial confinement; 1D theory; 3D hybrid particle-in-cell code; Gamble II generator; IPROP; Proton beam; analytic theory; beam profile; gas-breakdown effects; gas-breakdown physics; high-yield inertial confinement fusion target; intense light-ion beams; low-pressure gas; numerical simulation; self-consistent simulations; self-pinched transport; stable transport; Councils; Fusion power generation; Inertial confinement; Laboratories; Particle beam injection; Particle beams; Physics; Plasma confinement; Plasma simulation; Plasma transport processes;
Conference_Titel :
Plasma Science, 1997. IEEE Conference Record - Abstracts., 1997 IEEE International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-3990-8
DOI :
10.1109/PLASMA.1997.604797
