Design aspects of high-power targets

The design of high-power targets for production of intense beams of radioactive ions requires the following: a reliable determination of the power deposited, knowledge of the thermal properties of the materials incorporated in the design, and a comprehensive thermal analysis of designs to evaluate the conceptual approaches. From the thermal analysis, iterations in the design approaches can lead to effective target conceptual designs that can bypass a series of prototype tests. Emphasis will be made for conductive cooling approaches, for which comprehensive thermal conductivity data are required for all components. Additional thermal properties are needed if radiative cooling or shielding is incorporated in target concepts. The example is presented of a uranium/carbon target to produce fission-product activities, featuring sensitivities to power dissipation and thermal properties assumed in the analyses.