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Valentina Santoro

Valentina Santoro

Senior lecturer

Valentina Santoro

The HighNESS Project at the European Spallation Source: Current Status and Future Perspectives

Author

  • V. Santoro
  • B. Rataj
  • O. Zimmer

Summary, in English

The European Spallation Source (ESS), presently under construction in Lund, Sweden, is a multidisciplinary international laboratory that, once completed at full specifications, will operate the world’s most powerful pulsed neutron source. Supported by a 3 M Euro Research and Innovation Action within the European Union Horizon 2020 program, a design study (HighNESS) is now underway to develop a second neutron source located below the spallation target. Compared to the first source, which is located above the spallation target and designed for high cold and thermal brightness, the new source is being optimized to deliver higher intensity and a shift to longer wavelengths in the spectral regions of cold neutrons (CNs) (2 to 20 Å), very cold neutrons (VCNs) (10 to 120 Å), and ultracold neutrons (UCNs) ((Formula presented.) 500 Å). The second source consists of a large liquid deuterium moderator to deliver CNs and serve secondary VCN and UCN sources, for which different options are under study. These new sources will boost several areas of condensed matter research and will provide unique opportunities in fundamental physics. The HighNESS project is now entering its last year, and we are working toward the Conceptual Design Report of the ESS upgrade. In this paper, results obtained in the first 2 years, ongoing developments, and future perspectives are described. © 2023 The Author(s). Published with license by Taylor & Francis Group, LLC.

Department/s

  • Particle and nuclear physics

Publishing year

2023

Language

English

Pages

31-63

Publication/Series

Nuclear Science and Engineering

Volume

198

Issue

1

Document type

Journal article

Publisher

Taylor & Francis

Topic

  • Accelerator Physics and Instrumentation

Keywords

  • neutron instrument, NNBAR
  • Neutron sources
  • ultracold neutrons
  • very cold neutrons
  • Conceptual design
  • Neutrons
  • Spalling
  • Cold neutron
  • European spallation sources
  • Future perspectives
  • Neutron instrument, NNBAR
  • Neutron instruments
  • New sources
  • Source currents
  • Spallation targets
  • Ultracold neutrons
  • Very cold neutrons

Status

Published

ISBN/ISSN/Other

  • ISSN: 0029-5639