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Title:Fusion-Product Transport in Axisymmetric Tokamaks: Losses and Thermalization
Author(s):Hively, Lee Mizener
Department / Program:Nuclear Engineering
Discipline:Nuclear Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Engineering, Nuclear
Energy
Abstract:High-energy fusion-product losses from an axisymmetric tokamak plasma are studied. Prompt-escape loss fluxes (i.e. prior to slowing down) are calculated including the non-separable dependence of flux as a function of poloidal angle and local angle-of-incidence at the first wall. The flux is strongly peaked at near grazing incidence, suggesting that blistering-injected impurities can reduce reactor burn times by 50-70%. Non-prompt losses (during slowing down, without anomalous effects) are also calculated to be 10-fold over in-situ deposition. While this result implies reduced alpha "ash" accumulation on axis, the reduced heating rate makes start-up and maintenance of ignition more difficult.
Issue Date:1980
Type:Text
Language:English
Description:210 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1980.
URI:http://hdl.handle.net/2142/67789
Other Identifier(s):(UMI)AAI8026521
Date Available in IDEALS:2014-12-14
Date Deposited:1980


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