IsoDAR@Yemilab: Preliminary Design Report -- Volume II: Medium Energy Beam Transport, Neutrino Source, and Shielding

TL;DR

This paper presents the preliminary design of the medium energy beam transport, neutrino source, and shielding for the IsoDAR experiment, aiming to produce a high-intensity electron-antineutrino source for particle physics research.

Contribution

It provides detailed design descriptions of the MEBT, target, shielding, and monitoring plans for the IsoDAR neutrino source, advancing the technical development of the project.

Findings

Design of the MEBT line and target system completed

Estimated production of 1.15×10^{23} electron-antineutrinos over five years

Plans for shielding and monitoring to ensure safety and performance

Abstract

This Preliminary Design Report (PDR) describes the IsoDAR electron-antineutrino source in two volumes which are mostly site-independent and describe the cyclotron driver providing a 60 MeV, 10 mA proton beam (Volume I); and the medium energy beam transport line (MEBT) and target (this Volume). The IsoDAR driver and target will produce about $1.15\cdot10^{23}$ electron-antineutrinos over five calendar years. Paired with a kton-scale liquid scintillator detector, this will enable a broad particle physics program including searches for new symmetries, new interactions and new particles. Here in Volume II, we describe the medium energy beam transport line, the antineutrino source beam-target and surrounding sleeve, shielding, and plans for monitoring and installation.