Title :
Expectations for hohlraum environment driven by spatially compressed flying radiation case at intermediate currents
Author :
Bowers, R.L. ; Brownell, J.H. ; Rogers, H.H.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
Summary form only given. The radiation environment produced by the magnetic implosion of a hot, low density plasma and its stagnation on an axial cushion (a Flying Radiation Case) is modeled using a two-dimensional radiation magnetohydrodynamic code and drive parameters for the PFZA-Z machine pulsed power machine. We consider the effects of instability growth in the plasma during the implosion, its reassembly on the cushion, and plasma interactions with shaped electrodes. The radiation environment within the pinch and in an axial side hohlraum are modeled. We also consider effects of the pinch on the side hohlraum. The computational approach has been successful in modeling the implosion and radiation output of Z-pinches on the Pegasus facility at Los Alamos National Laboratory, and on the Saturn and PFZA-Z machines at Sandia National Laboratories.
Keywords :
Z pinch; plasma instability; plasma magnetohydrodynamics; plasma-wall interactions; PFZA-Z; Saturn; Z-pinches; axial cushion; axial side hohlraum; drive parameters; hohlraum environment; hot low density plasma; instability growth; intermediate currents; magnetic implosion; plasma interactions; pulsed power machine; radiation environment; shaped electrodes; spatially compressed flying radiation case; stagnation; two-dimensional radiation magnetohydrodynamic code; Computer aided software engineering; Electrons; Laboratories; Plasma density; Plasma measurements; Plasma temperature; Pulse measurements; Saturn; Spectroscopy; Tungsten;
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.1997.604722