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Title: Atomic Physics Effects on Convergent, Child-Langmuir Ion Flow between Nearly Transparent Electrodes

Research during this project at the University of Wisconsin Fusion Technology Institute (UW FTI) on ion and neutral flow through an arbitrary, monotonic potential difference created by nearly transparent electrodes accomplished the following: (1) developed and implemented an integral equation approach for atomic physics effects in helium plasmas; (2) extended the analysis to coupled integral equations that treat atomic and molecular deuterium ions and neutrals; (3) implemented the key deuterium and helium atomic and molecular cross sections; (4) added negative ion production and related cross sections; and (5) benchmarked the code against experimental results. The analysis and codes treat the species D0, D20, D+, D2+, D3+, D and, separately at present, He0 and He+. Extensions enhanced the analysis and related computer codes to include He++ ions plus planar and cylindrical geometries.
 [1] ;  [1]
  1. University of Wisconsin-Madison
Publication Date:
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Technical Report
Research Org:
University of Wisconsin-Madison
Sponsoring Org:
USDOE; USDOE SC Office of Fusion Energy Sciences (SC-24)
Contributing Orgs:
University of Wisconsin-Madison
Country of Publication:
United States
70 PLASMA PHYSICS AND FUSION TECHNOLOGY Plasma, Ion flow, Child-Langmuir, Inertial-electrostatic confinement, IEC