Energy loss for the assemblies of charged projectiles in a dusty plasma
- National Center for Mathematics and Salam Chair in Physics, Government College University, 54000 Lahore (Pakistan)
Expressions for the electrostatic potential and the energy loss are derived for a variety of arrays of dust grain projectiles, arranged at different orientations and separations and moving with a constant velocity along the z axis in an unmagnetized collisionless dusty plasma, using linear dielectric theory. By employing the dielectric constant of dust acoustic wave, the Debye and wake potentials are calculated for the projectiles. It is found that a projectile moving with high speed forms a negative wake behind and a shock in front of it. Further, for particular values of interspacing, the three different assemblies exhibit almost similar behavior of the energy loss and thus permit the possibility of all of them to move in unison to establish a dynamical equilibrium in a hexagonal geometry.
- OSTI ID:
- 20764368
- Journal Information:
- Physics of Plasmas, Vol. 12, Issue 7; Other Information: DOI: 10.1063/1.1933739; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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