The aligned nuclear targets for investigation of time reversal invariance violation: thermal heating and optimization of target dimension

TL;DR

This paper analyzes thermal heating effects on aligned nuclear targets during neutron irradiation and recommends optimal target dimensions to enhance the investigation of time reversal invariance violation at JSNS, potentially advancing fundamental physics research.

Contribution

It introduces optimized target dimensions for large-volume aligned nuclear targets to improve TRIV experiments at JSNS.

Findings

Large volume targets are feasible for experiments.

Optimal dimensions are identified for resonance neutron investigations.

Potential to significantly improve limits on time reversal violation.

Abstract

The thermal heating of aligned nuclear targets of HIO_3, LiIO_3 ans Sb target materials under neutron irradiation at JSNS is considered. It is shown that presently the targets of large volumes (several tens of cm^3) can be used in experiment. The optimal target dimensions are recommended for investigation with resonance neutrons. The use of proposed aligned targets at the new neutron spallation source JSNS (Japan) will make p[ossible to discover TRIV or decrease the present limit on the intensity of parity conserving time violating interaction by two-three order of magnitude.