Accelerator design concept for future neutrino facilities

TLDR

The Accelerator Working Group of the International Scoping Study summarized its work on a baseline design for a future neutrino factory and superbeam facility, noting that the requirements for the latter are less stringent than for a neutrino factory. The group aimed to reach consensus on a baseline design for a neutrino factory complex—including proton driver, target, front‑end, acceleration, and decay ring—and to investigate commonality with superbeam or beta‑beam proton drivers. They developed concepts, parameters, and expected performance for the required subsystems of the chosen baseline design. They identified the main R&D tasks, many already underway, needed to finalize facility design approaches.

Abstract

This document summarizes the work of the Accelerator Working Group (AWG) of the International Scoping Study (ISS) of a Future Neutrino Factory and Superbeam Facility. The main goal of the activity was to reach consensus on a baseline design for a Neutrino Factory complex, including proton driver parameters, choice of target, front-end design, acceleration system design, and decay ring geometry. Another goal was to explore the commonality, if any, between the proton driver for a Neutrino Factory and those for a Superbeam or Beta Beam facility. In general, the requirements for either of the latter facilities are less stringent than those for a Neutrino Factory. Here, we discuss concepts, parameters, and expected performance of the required subsystems for our chosen baseline design of a Neutrino Factory. We also give an indication of the main R&D tasks — many of which are already under way — that must be carried out to finalize facility design approaches.