  Novel beam-intercepting materials and targetry concepts are essential to
improve the performance, reliability and operation lifetimes of next generation
multi-megawatt (multi-MW) accelerator target facilities. The beam-intercepting
materials and components must sustain an order-of-magnitude increase in
particle beam intensities and are beyond the current state-of-the-art. With
conventional materials already limiting the scope of experiments, it is crucial
to investigate novel target materials, technologies and concepts that will
satisfy the requirements and maximize the physics benefits of future energy and
intensity frontier experiments. This paper provides an overview of the related
targetry R&D required over the next 10 years to support and enable future
high-power accelerator target facilities.
