High power neutrino beam targets

Neutrinos have moved from the realm of speculation to precise measurements of physics beyond the Standard Model, and the field has many more discoveries to offer. The next generation of neutrino experiments are currently being designed to probe the mysteries of CP violation and the mass hierarchy of neutrinos, and perhaps to gain insights into the baryon asymmetry of the universe. Both HyperKamiokande in Japan (and possibly Korea), and the Deep Underground Neutrino Experiment (DUNE) in the US will require a copious and precisely controlled source of neutrinos to generate sufficient interactions in these far detectors, many hundreds of km distant. The present and future high priests of particle physics need their cathedrals to be built. The design and construction of the particle accelerator facilities required to generate the neutrino ‘Super’ beams offer many interesting challenges for engineers and scientists, including the targets which are required to convert intensely pulsed MW proton beams into neutrinos. This talk will describe existing neutrino facilities and some of the work currently underway to deliver the technology for the next generation of experiments.