This invention is a process by which the position and orientation of fast ion loss detectors or collectors in a tokamak can be optimally chosen so as to achieve maximum performance based upon predefined criteria. One prominent application of this process is the determination of optimal positions for collectors of alpha particle or other MeV fusion-produced ions. Such collectors could allow direct conversion to electricity of the fusion energy in those ions. Fusion reactors with this ability could operate with improved efficiency over those that simply convert the fusion reactor power to electricity by means of conventional thermal cycles. The process also allows rapid evaluation of collector configurations over a range of possible magnetic configurations of the plasma.
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