Basic Studies on Discrimination and Deceleration of Charged Particles in a Direct Energy Converter

Particle discrimination and deceleration are studied with employing experimental devices which simulate direct energy converters used for D–³He reactor. A Cusp-DEC simulator with a slanted cusp field is constructed, and the preparative numerical simulation about it shows the better discrimination is expected for ions with a small pitch angle. Experimental results in a TWDEC simulator are presented. Due to the measurements of energy distribution, the effectiveness of spatially varied wavelength structure is demonstrated. The simple 1-D orbit calculation shows that the efficiency of the same extent as that of the 2-D numerical simulation would be achieved in the experimental device.