FUSION REACTIVITY CHARACTERIZATION OF A SPHERICALLY CONVERGENT ION FOCUS
BibTeX
@MISC{Thorson_fusionreactivity,
author = {T. A. Thorson and R. D. Durst and R. J. Fonck and A. C. Sontag},
title = {FUSION REACTIVITY CHARACTERIZATION OF A SPHERICALLY CONVERGENT ION FOCUS},
year = {}
}
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Abstract
ABSTRACT. The deuterium{deuterium (D{D) fusion reaction rate in a spherically convergent ion focus is observed to signicantly exceed the rate predicted by a collisionless flow model. However, a careful consideration of ion{neutral collisions and the trapped neutral density in the cathode account for the extra reactivity without invoking anomalous ion trapping in the converged core region. This conclusion is supported by proton collimation measurements, which indicate that the bulk of the observed reactivity originates outside the core region. In addition, a classical flow model, where charge exchange collisional eects on the ion and fast neutral distributions are included, provides fusion rate estimates that are quantitatively consistent with the observed D{D fusion neutron production rate. 1.
Keyphrases
spherically convergent ion focus fusion reactivity characterization core region fusion rate estimate fusion reaction rate observed fusion neutron production rate ion neutral collision extra reactivity fast neutral distribution charge exchange collisional eects proton collimation measurement collisionless flow model convergent ion focus anomalous ion deuterium deuterium classical flow model trapped neutral density cathode account observed reactivity originates careful consideration
