Poloidal divertor target for SLPX

A single null poloidal divertor was planned for the Superconducting Long Pulse Experiment (SLPX) Tokamak Reactor, a conceptual design study conducted by the Princeton Plasma Physics Laboratory. This paper presents the divertor target design for SLPX. A discussion of the advantages and disadvantages of the two types of targets, actively cooled flat plates and cooling tubes is presented. Surface boiling swirl tubes and axial flow nucleate boiling tubes are examined and candidate cooling tubes for SLPX are chosen from existing experimental burnout data. The required equations and a procedure are developed for the design of a poloidal divertor target, and applied to the SLPX target design. The requirements of remote maintenance and its effect on the choice of a target are discussed. An analysis of the energy leaving a target tube, a measure of target performance, is conducted