Title :
Model of Neutral-Beam Propagation in a Duct With Scrapers
Author :
Akhmetov, Timur D. ; Davydenko, Vladimir I. ; Ivanov, Alexandr A.
Author_Institution :
Budker Inst. of Nucl. Phys., Novosibirsk
Abstract :
A model of propagation of a neutral beam with geometric focusing and angular divergence in a duct is described. An algorithm is presented for calculation of a 2-D current-density profile at an arbitrary distance from a flat circular emitter with the account of multiple plane scrapers in the beam duct, which limit cross section of the beam. Numerical code is applied to calculation of current-density profiles and power loads on circular scrapers due to neutral particles.
Keywords :
current density; ducts; ion accelerators; ion sources; particle beam focusing; plasma density; plasma devices; plasma diagnostics; plasma simulation; plasma sources; 2-D current-density profile; angular divergence; beam duct; diagnostic tool; flat circular emitter; geometric focusing; ion accelerator focal length; ion sources; multiple plane scrapers; neutral particles; neutral-beam propagation; numerical code; plasma devices; power loads; Atomic beams; ion optics; ion sources; plasma measurements;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2008.917951
