Comparison of plasma transport theory with measurements in a H- discharge


Autoria(s): AlJibouri, A.; Holmes, A.J.T.; Graham, Bill
Data(s)

1996

Resumo

This paper and its companion paper describe the comparison between a one-dimensional theoretical model of a hydrogen discharge in a magnetic multipole plasma source and experimental measurements of the plasma parameters. The discharge chamber, described here, has been designed to produce significant densities of H- ions by incorporating a weak transverse field through the discharge to obtain electron cooling so as to maximize H- production. Langmuir probes are used to monitor the plasma, determining the ion density, the electron density and temperature and the plasma potential. The negative density is measured by photo-detachment of the extra electron using an intense laser beam. The model, described in the companion paper, uses the presented source geometry to calculate these plasma quantities as a function of the major are parameters; namely the are current and voltage and gas pressure. Good agreement is obtained between theory and experiment as a function of position and arc parameters.

Identificador

http://pure.qub.ac.uk/portal/en/publications/comparison-of-plasma-transport-theory-with-measurements-in-a-h-discharge(945ca1d3-3803-4c9e-8a40-9e0c5d2e82c0).html

Idioma(s)

eng

Direitos

info:eu-repo/semantics/restrictedAccess

Fonte

AlJibouri , A , Holmes , A J T & Graham , B 1996 , ' Comparison of plasma transport theory with measurements in a H- discharge ' Plasma Sources Science & Technology , vol 5 , pp. 401-411 .

Tipo

article