Fuel preconditioning studies for e-beam fusion targets
- 1 May 1979
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 50 (5) , 3224-3230
- https://doi.org/10.1063/1.326360
Abstract
Fuel temperature and density conditions, achieved during the preheat phase of electron‐beam fusion compression experiments, must be accurately known to understand experimental results via numerical simulations. We present studies of discharge preheating in a simplified cylindrical geometry which compare measured quantities with results from the one‐dimensional Lagrangian CHARTB magnetohydrodynamic code. Experimental measurements included schlieren photography and ultraviolet through visible time‐ and space‐resolved spectroscopy in various configurations. It is seen that an 8‐kA 500‐ns heating pulse in 100 Torr of D2+10% O2 produces 10–12 eV temperatures, 1018 cm−3 electron densities, and 7×105 cm/s expansion velocities in the heated discharge channel. These results are consistent with previous claims for neutron‐producing targets, although the target geometry is different.This publication has 1 reference indexed in Scilit:
- Spectroscopic measurements on a high-density Z-pinch plasmaJournal of Applied Physics, 1977