Model with anomalous diffusion and friction for a vacuum-arc plasma jet in a straight magnetic filter
A model is developed to describe the plasma jet generated in a vacuum arc, which enters and flows inside a straight magnetic filter with a realistic magnetic field configuration. Considering a low-density collisionless plasma projection of the electron momentum equation along the magnetic field line...
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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
2011
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
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| LEADER | 10187caa a22012017a 4500 | ||
|---|---|---|---|
| 001 | PAPER-23601 | ||
| 003 | AR-BaUEN | ||
| 005 | 20250220092159.0 | ||
| 008 | 190411s2011 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-80054064333 | |
| 030 | |a ITPSB | ||
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Minotti, F. | |
| 245 | 1 | 0 | |a Model with anomalous diffusion and friction for a vacuum-arc plasma jet in a straight magnetic filter |
| 260 | |c 2011 | ||
| 270 | 1 | 0 | |m Minotti, F.; Consejo Nacional de Ciencias y Tecnología (CONICET), Buenos Aires, C1033AAJ, Argentina; email: minotti@df.uba.ar |
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| 504 | |a Giuliani, L., Minotti, F.O., Grondona, D., Kelly, D., On the dynamics of the plasma entry and guiding in a straight magnetized filter of a pulsed vacuum arc (2007) IEEE Trans. Plasma Sci., 35 (6), pp. 1710-1716. , Dec | ||
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| 504 | |a Hurtig, T., Brenning, N., Raadu, M.A., The role of high frequency oscillations in the penetration of plasma clouds across magnetic boundaries (2005) Phys. Plasmas, 12 (1), pp. 0123081-01230813. , Jan | ||
| 504 | |a Giuliani, L., Grondona, D., Kelly, H., Minotti, F.O., On the plasma rotation in a straight magnetized filter of a pulsed vacuum arc (2007) Journal of Physics D: Applied Physics, 40 (2), pp. 401-408. , DOI 10.1088/0022-3727/40/2/017, PII S0022372707336036, 017 | ||
| 504 | |a Spitzer, L., (1962) Physics of Fully Ionized Gases, , 2nd ed. New York: Wiley | ||
| 504 | |a Giuliani, L., Grondona, D., Kelly, H., Minotti, F.O., Ion kinetic energy distribution in a pulsed vacuum arc with a straight magnetic filter (2008) Phys. Scr., T131, pp. 0140321-0140323. , Oct | ||
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| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a A model is developed to describe the plasma jet generated in a vacuum arc, which enters and flows inside a straight magnetic filter with a realistic magnetic field configuration. Considering a low-density collisionless plasma projection of the electron momentum equation along the magnetic field lines and the assumption of quasi-neutrality allows one to relate the plasma density to the electrostatic potential. The system of equations is closed using the ion mass conservation and ion momentum equations. The model is compared to measurements on the plasma jet generated in a pulsed copper vacuum arc with an annular anode, moving along a straight magnetic filter. Probe measurements of the ion saturation current and of the floating potential at different axial and radial positions along the filter, and for different magnetic field values, are used in the comparison with the model results. It is found that anomalous diffusion is needed to fit the experimental measurements. Moreover, a novel anomalous friction effect for ion motion across magnetic lines has to be invoked in order to prevent strong radial oscillations triggered by the fast magnetic focusing of the plasma at the filter entrance and obtain realistic results. A simple model is presented to account for both of these effects, based on the assumption of a high level of fluctuations in the plasma. © 2011 IEEE. |l eng | |
| 536 | |a Detalles de la financiación: Universidad de Buenos Aires, PID X108 | ||
| 536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas, PIP 11220090100219 | ||
| 536 | |a Detalles de la financiación: Manuscript received March 17, 2011; revised May 9, 2011 and June 24, 2011; accepted July 21, 2011. Date of publication September 1, 2011; date of current version October 12, 2011. This work was supported in part by the Universidad de Buenos Aires under Grant PID X108 and in part by CONICET under Grant PIP 11220090100219. | ||
| 593 | |a Consejo Nacional de Ciencias y Tecnología (CONICET), Buenos Aires, C1033AAJ, Argentina | ||
| 593 | |a Instituto de Física Del Plasma (CONICET), Departamento de Física, Universidad de Buenos Aires, Buenos Aires, 1428, Argentina | ||
| 690 | 1 | 0 | |a ANOMALOUS TRANSPORT |
| 690 | 1 | 0 | |a MAGNETIC FIELD |
| 690 | 1 | 0 | |a VACUUM ARC |
| 690 | 1 | 0 | |a ANNULAR ANODES |
| 690 | 1 | 0 | |a ANOMALOUS DIFFUSION |
| 690 | 1 | 0 | |a ANOMALOUS TRANSPORT |
| 690 | 1 | 0 | |a DIFFERENT-MAGNETIC FIELDS |
| 690 | 1 | 0 | |a ELECTRON MOMENTUM EQUATIONS |
| 690 | 1 | 0 | |a ELECTROSTATIC POTENTIALS |
| 690 | 1 | 0 | |a EXPERIMENTAL MEASUREMENTS |
| 690 | 1 | 0 | |a FLOATING POTENTIALS |
| 690 | 1 | 0 | |a FRICTION EFFECT |
| 690 | 1 | 0 | |a ION MASS |
| 690 | 1 | 0 | |a ION MOMENTUM |
| 690 | 1 | 0 | |a ION MOTIONS |
| 690 | 1 | 0 | |a ION SATURATION CURRENT |
| 690 | 1 | 0 | |a MAGNETIC FIELD CONFIGURATIONS |
| 690 | 1 | 0 | |a MAGNETIC FIELD LINE |
| 690 | 1 | 0 | |a MAGNETIC FOCUSING |
| 690 | 1 | 0 | |a MAGNETIC LINES |
| 690 | 1 | 0 | |a MODEL RESULTS |
| 690 | 1 | 0 | |a PROBE MEASUREMENTS |
| 690 | 1 | 0 | |a RADIAL OSCILLATION |
| 690 | 1 | 0 | |a RADIAL POSITION |
| 690 | 1 | 0 | |a SYSTEM OF EQUATIONS |
| 690 | 1 | 0 | |a VACUUM ARC |
| 690 | 1 | 0 | |a VACUUM ARCS |
| 690 | 1 | 0 | |a COLLISIONLESS PLASMAS |
| 690 | 1 | 0 | |a DIFFUSION |
| 690 | 1 | 0 | |a FRICTION |
| 690 | 1 | 0 | |a IONS |
| 690 | 1 | 0 | |a MAGNETIC FIELDS |
| 690 | 1 | 0 | |a MAGNETIC FILTERS |
| 690 | 1 | 0 | |a MAGNETIC SEPARATORS |
| 690 | 1 | 0 | |a PLASMA ACCELERATORS |
| 690 | 1 | 0 | |a PLASMA DENSITY |
| 690 | 1 | 0 | |a PLASMA DIAGNOSTICS |
| 690 | 1 | 0 | |a PLASMA JETS |
| 690 | 1 | 0 | |a VACUUM |
| 690 | 1 | 0 | |a VACUUM APPLICATIONS |
| 690 | 1 | 0 | |a VACUUM TECHNOLOGY |
| 690 | 1 | 0 | |a MAGNETOPLASMA |
| 700 | 1 | |a Giuliani, L. | |
| 700 | 1 | |a Grondona, D. | |
| 700 | 1 | |a Della Torre, Horacio Armando | |
| 700 | 1 | |a Kelly, H. | |
| 773 | 0 | |d 2011 |g v. 39 |h pp. 2014-2021 |k n. 10 |p IEEE Trans Plasma Sci |x 00933813 |w (AR-BaUEN)CENRE-1895 |t IEEE Transactions on Plasma Science | |
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