Loading...
Please wait, while we are loading the content...
Similar Documents
Digital Computer Simulation of Three-Dimensional Ion Beam Extraction and Transport Systems
| Content Provider | Semantic Scholar |
|---|---|
| Author | Beers, Jack E. |
| Abstract | SNOW, a program for the simulation of ion beam extraction from plasmas has been cxtcndcd into three dimensions. Basic relaxation techniques arc employed, alternately solving for voltagcx (using Poisson's cqualion expanded in diffcrcncc form) and computing trajcctorics through the device. Elcctrodcs arc laid out on a large three-dimensional array for the simulation of voltages. The plasma is simulated on a second array (that may be finer than the voltage matrix) by using a background (Boltzmann) electron distribution balanced with the ion space-charge density at the injection plane. The plasma is dctcrmincd by its clcctron tcmpcraturc and the ion drift cncrgy and spatial distribution. The program automatically dctcrmincs the shape and location of the plasma surface. It is written in gcncric FORTRAN 77 and can be run on virtually any computer from high end PC's (with DOS cxtendcrs) to Gray's with only minor modifications. Execution time can vary from IS minutes to 8+ hours on the PC. Results can bc obtained within a few percent of cithcr theory or expcrimcnt. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://accelconf.web.cern.ch/Accelconf/p91/PDF/PAC1991_0275.PDF |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
