# Stainless steel tank production and tests for the JSNS$^2$ neutrino detector

## TL;DR

This paper details the design, construction, and testing of a stainless steel tank for the JSNS$^2$ neutrino detector, demonstrating improved sealing and robustness suitable for experimental use.

## Contribution

It introduces a new liquid gasket sealing technique and provides quantitative evaluation of its effectiveness for neutrino detector tanks.

## Key findings

- Sealing capability exceeds five times the leakage tolerance level.
- Tank demonstrates adequate robustness during transportation.
- Design and construction are feasible for real experiments.

## Abstract

This paper describes the design and the construction of the stainless steel tank of the JSNS$^2$ detector. The leakage was examined using water and gas after the construction. The new sealing technique with liquid gasket was developed, and its sealing capability was evaluated quantitatively. The result shows over 5 times better value than the tolerance level of leakage.The acceleration measurement during the transportation of the tank shows adequate robustness.These tests prove that the stainless steel tank is feasible to use the real experiment.