Portal de Periódicos da CAPES

Charge-exchange measurements of beam ion thermalization in MHD-quiescent plasmas in the poloidal divertor experiment

1985; IOP Publishing; Volume: 25; Issue: 8 Linguagem: Inglês

10.1088/0029-5515/25/8/007

1741-4326

R. Kaita, R.J. Goldston, P. Beiersdörfer, D.L. Herndon, S. Kaye, H. Kugel, R. McCann, D. McCune, D. D. Meyerhofer, H.H. Towner,

Ionosphere and magnetosphere dynamics

The horizontally scanning, multi-angle charge-exchange analyser on the Poloidal Divertor Experiment (PDX) was used to study the beam ion slowing-down process with high-power perpendicular injection. Measurements were made over a wide range in toroidal field (8 kG <BT<22 kG), plasma current (200 kA <Ip<500 kA), and beam power (1 MW <PB<7 MW). In MHD-quiescent plasmas, agreement is found between the measured slowing-down spectra and theoretical predictions as a function of both angle and energy. Classes of prompt orbit losses are observed with both co-and counter-injection which have been understood and applied to plasma diagnostics.