Fusion Reaction Rate in an Inhomogeneous Plasma.

Son, S. ; Fisch, N. J.

Technical Information Center Oak Ridge Tennessee

关键词: Cross section;    Inhomogeneous plasma;    Distribution;    Fusion power;    Modifications;   

RP-ID  :  DE2005835897

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The local fusion rate, obtained from the assumption that the distribution is a local Maxwellian, is inaccurate if mean-free-paths of fusing particles are not sufficiently small compared with the inhomogeneity length of the plasma. We calculate the first order correction of P0 in terms of the small spatial gradient and obtain a non-local modification of P(sub)0 in a shock region when the gradient is not small. Use is made of the fact that the fusion reaction cross section has a relatively sharp peak as a function of energy.