Beam Dump Window Design for CSNS

TL;DR

This paper presents the design and thermal analysis of the beam dump window for CSNS, selecting suitable materials and optimizing structure to ensure safety and performance under operational conditions.

Contribution

It introduces a new design with optimized structure and material selection for the CSNS beam dump window, validated through thermal analysis and safety confirmation.

Findings

Glidcop AL-15 and 316L are suitable materials for the window.

The optimized window thickness ranges from 1.5mm to 3mm.

The design meets safety and operational requirements.

Abstract

Beam dump window is one of the most important parts of beam dump of China Spallation Neutron Source(CSNS). The material, structure and other concerned issue have been discussed in this paper. Thermal analyses have been applied for the beam dump window design. By comparison, GlidcopAL-15 and 316L have been chosen as window material. The window section has been designed as inner convex spherical surface and the window thickness has been set 1.5mm to 3mm by structure optimization. The window safety has been confirmed under the damage of magnet. All these analyses proved that the window can meet the requirements of CSNS beam dump well.