Neutronics analyses for the conceptual design of the SNS Second Target Station

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The Spallation Neutron Source, in operation at the Oak Ridge National Laboratory since 2006, was designed to allow the addition of a second target station and an upgrade of the accelerator proton power. Both upgrades are now underway. This paper describes the evolution of the design of the target of the second target station with the emphasis on the effects of the proton beam footprint on the energy deposition in the target, stresses induced by the pulsed operation, and the importance of the residual heat. The moderator configurations and their optimization are discussed. With the utilization of pure parahydrogen moderators, small neutron beam cross-sections, and the specific optimization, neutron beams of the second target station will achieve exceptionally high peak brightness and time-averaged brightness.

Original languageEnglish
Pages (from-to)265-273
Number of pages9
JournalJournal of Neutron Research
Volume22
Issue number2-3
DOIs
StatePublished - 2020

Keywords

  • Neutron source
  • brightness
  • moderators
  • neutronics
  • spallation
  • target

Fingerprint

Dive into the research topics of 'Neutronics analyses for the conceptual design of the SNS Second Target Station'. Together they form a unique fingerprint.

Cite this