SNS proton power upgrade

[摘要] The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL) is preparing for the Proton Power Upgrade (PPU) project to increase the output energy of the accelerator from 1.0 GeV to 1.3 GeV. As part of this project with the combination of increasing the output energy and beam current, the beam power capability will be doubled from 1.4MW to 2.8MW. In this project, seven new high beta cryomodules housing 28 superconducting niobium cavities will be added to the LINAC tunnel. Lessons learned from over ten years of operation will be incorporated into the new cryomodule and cavity design. The design and the fabrication of these cryomodules and how these will be integrated into the existing accelerator will be detailed in this paper.

[发布机构] Research Accelerator Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge; TN; 37831, United States^1

[效力级别] 物理学 [学科分类] 材料科学（综合）

[关键词] Beam currents;Beam power;Cavity design;New high;Niobium cavity;Oak ridge national laboratories;Output energy;Spallation neutron sources