Particle Diagnostics for Magnetic Fusion Experiments

Post, D.

doi:10.1007/978-1-4613-3763-8_15

Cited by 2 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One method, called charge exchange spectroscopy (CXS), involves the injection of a neutral D beam at several keV and measurement of the resulting emissions following electron capture (see Isler 1994 for a review). Isotope effects play little role at these energies, but statedependent cross sections are required in order to compute the impurity abundances (Post 1983). Absolute state-dependent cross sections are not easily measured in the laboratory so that theoretical computations must be relied upon.…”

Section: Fusion Plasmasmentioning

confidence: 99%

State- and isotope-dependent charge transfer of with atomic hydrogen in astrophysical and fusion plasmas

Stancil

Zygelman

Clarke

1997

J. Phys. B: At. Mol. Opt. Phys.

View full text Add to dashboard Cite

State-and target-isotope-dependent cross sections for electron capture in collisions of N 4+ (2s) with H(1s), D(1s), and T(1s) are presented for the energy range 0.01-6000 eV amu −1 . Results are given for capture via radial coupling into the N 3+ 2s3s 1 S, 2s3p 1 P o , 2s3d 1 D, 2s3s 3 S, 2s3p 3 P o , 2s3d 3 D, and 2p3s 3 P o states and are obtained through a close-coupled, quantummechanical, molecular-orbital method. Fully ab initio molecular data determined with the spincoupled valence-bond method are incorporated. Rate coefficients for temperatures between 1000 and 10 6 K are also presented. Applications to astrophysical environments and laboratory plasmas are addressed. The importance of state-dependent parameters for the modelling of nebulae emission lines and for fusion plasma impurity diagnostics and the potential significance of isotope effects to models of the edge region of a tokamak device are briefly discussed.

show abstract

Section: Fusion Plasmasmentioning

confidence: 99%