Linear Accelerator Conference LINAC2010 - List of Authors (Schulte, K.)

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Schulte, K.

Paper	Title	Page
MOP102	Space Charge Lens for Focusing Heavy Ion Beams	298
	K. Schulte, M. Droba, O. Meusel, U. Ratzinger IAP, Frankfurt am Main
	Space charge lenses use a confined electron cloud for the focusing of ion beams. Due to the electric space charge field, focusing is independent of the particle mass. For this reason the application of the space charge lens especially in the field of heavy ion beams is advantageous. Moreover, the trapped non neutral plasma cloud compensates the space charge forces of the ion beam. The focusing strength is given by the confined electron density whereas the density distribution influences the mapping quality of the space charge lens. An important parameter for the focusing capability of the space charge lens is besides the homogeneous electron distribution a high electron density. In ongoing theoretical and experimental work methods have been developed to determine the most important parameters like electron temperature and electron density distribution for an optimized lens design. Based on the experimental results a new space charge lens has been designed to focus low energy heavy ion beams like 2,4 AkeV U⁴⁺ at the low energy transport section into the GSI High Current Injector. Experimental results will be presented and compared with numerical simulations. *W. Barth, "THE INJECTOR SYSTEMS OF THE FAIR PROJECT", LINAC08, Victoria, BC, Canada

Paper

Title

Page

MOP102

Space Charge Lens for Focusing Heavy Ion Beams

298

K. Schulte, M. Droba, O. Meusel, U. Ratzinger
IAP, Frankfurt am Main

Space charge lenses use a confined electron cloud for the focusing of ion beams. Due to the electric space charge field, focusing is independent of the particle mass. For this reason the application of the space charge lens especially in the field of heavy ion beams is advantageous. Moreover, the trapped non neutral plasma cloud compensates the space charge forces of the ion beam. The focusing strength is given by the confined electron density whereas the density distribution influences the mapping quality of the space charge lens. An important parameter for the focusing capability of the space charge lens is besides the homogeneous electron distribution a high electron density. In ongoing theoretical and experimental work methods have been developed to determine the most important parameters like electron temperature and electron density distribution for an optimized lens design. Based on the experimental results a new space charge lens has been designed to focus low energy heavy ion beams like 2,4 AkeV U⁴⁺ at the low energy transport section into the GSI High Current Injector. Experimental results will be presented and compared with numerical simulations.

*W. Barth, "THE INJECTOR SYSTEMS OF THE FAIR PROJECT", LINAC08, Victoria, BC, Canada