Mansfeld, A.

Paper	Title	Page
TUCO-A02	Gasdynamic ECR Sources of Multicharged Ions	128
	V. Skalyga, A. Bokhanov, S. Golubev, I. Izotov, A. Mansfeld, S. Razin, V. Sidorov, V. Zorin IAP/RAS, Nizhny Novgorod
	А new type of pulsed sources of multicharged ions(MCI), namely, a gasdynamic ECR source is proposed. Its main difference from the classical ECR ion sources is a different, quasi-gasdynamic regime of plasma confinement in a magnetic trap. Plasma was produced and heated by radiation of a pulsed gyrotrons with the frequencies of 37.5 and 75 GHz in magnetic traps of various configurations. Plasma confinement in quasi-gasdynamic regime under such conditions was studied. It was demonstrated that with such a confinement regime it is possible to generate multicharged ions and create intense(more than 1 А/cm2) ion fluxes through the trap plugs. Creation of intense plasma fluxes allows one to extract high-current MCI beams of high brightness. Transverse homogeneity of a plasma flux makes it possible to use a multi-aperture extraction system for the formation of broad intense MCI beams. MCI beams with current up to 150mA and normalized emittance lower than 1 π·mm·mrad were produced. Comparison of results of calculations and data of experiments shows that they are in a good agreement, which allows us to predict creation of a new type of ECR source.
	Slides