Abstract
The Proton Power Upgrade (PPU) project at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL) has completed the installation and testing of all project scope required to meet threshold key performance parameters (KPPs), supported beam commissioning in June 2024, and transitioned to operations in July 2024. Increasing the beam energy from 1.0 to 1.3 GeV required the installation of seven additional cryomodules in the SNS Linac along with supporting RF systems. The accumulator ring injection and extraction regions were upgraded, a 2 MW mercury target was developed, and ancillary target systems were upgraded to support high-flow gas injection, mercury off-gas treatment, and ortho-para fraction control in the cryogenic moderator hydrogen loop. Three of four threshold KPPs have been demonstrated, and the project is planning for its final review in early 2025. Beam power on the first target station (FTS) will be ramped up to 2 MW over the next two years. Completion of the PPU project supports increased scientific capability at the FTS and will support operation of the second target station (STS) upon its completion. Lessons learned will be documented and a project closeout report will be written prior to the final closeout of the project.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 32nd Linear Accelerator Conference, LINAC 2024 |
| Editors | Kelly Jaje |
| Publisher | JACoW Publishing |
| Pages | 728-731 |
| Number of pages | 4 |
| ISBN (Electronic) | 9783954502196 |
| DOIs | |
| State | Published - 2024 |
| Event | 32nd Linear Accelerator Conference, LINAC 2024 - Chicago, United States Duration: Aug 25 2024 → Aug 30 2024 |
Publication series
| Name | Proceedings - Linear Accelerator Conference, LINAC |
|---|---|
| ISSN (Print) | 2226-0366 |
Conference
| Conference | 32nd Linear Accelerator Conference, LINAC 2024 |
|---|---|
| Country/Territory | United States |
| City | Chicago |
| Period | 08/25/24 → 08/30/24 |
Funding
ORNL is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy. This research was supported by the DOE Office of Science, Basic Energy Science, Scientific User Facilities. Notice: This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). The authors would like to acknowledge and thank all PPU staff members and others from ORNL and partner laboratories for their support in executing the PPU project.