High Power, High Energy Cyclotrons for Decay-At-Rest Neutrino Sources: The DAEdALUS Project

TL;DR

The DAEdALUS project proposes high-power, compact superconducting cyclotrons to generate decay-at-rest neutrino sources for studying neutrino oscillations, offering a cost-effective and innovative approach for neutrino physics research.

Contribution

It introduces a novel cyclotron design accelerating H2+ ions for decay-at-rest neutrino sources, enabling new experimental setups for neutrino oscillation studies.

Findings

Design of superconducting cyclotrons for 800 MeV/n H2+ ions

Potential for multiple neutrino sources at different baselines

Application of this technology in neutrino oscillation experiments

Abstract

Neutrino physics is a forefront topic of today's research. Large detectors installed underground study neutrino properties using neutrino beams from muons decaying in flight. DAEdALUS looks at neutrinos from stopped muons, "decay at rest" (DAR) neutrinos. The DAR neutrino spectrum has effectively no electron antineutrinos (essentially all pi- are absorbed), so a detector with free protons is sensitive to appearance of nu-e-bar oscillating from nu-mu-bar via inverse-beta-decay (IBD). Oscillations are studied using sources relatively near the detector, but which explore the same physics as the high-energy neutrino beams from Long Baseline experiments. As the DAR spectrum is fixed, the baseline is varied: plans call for 3 accelerator-based neutrino sources at 1.5, 8 and 20 km with staggered beam-on times. Compact, cost-effective superconducting ring cyclotrons accelerating molecular hydrogen ions (H2+) to 800 MeV/n with stripping extraction are being designed by L. Calabretta and his group. This revolutionary design could find application in many ADS-related fields.