Abstract
Located at the Spallation Neutron Source, VENUS is an instrument optimized for wavelength-dependent neutron imaging techniques, namely Bragg edge and resonance imaging, across a broad range of neutron energies (from meV to hundreds of eV). The VENUS construction project started in Fall 2018, establishing a conceptual design of the major components and timeline for purchasing, testing, and installation. Completion of the VENUS instrument is anticipated late 2024. This instrument comprises components such as a set of boron carbide apertures designed for both thermal/cold and epithermal neutrons, a suite of choppers (T0 and single disks), beam collimators, and a cadmium filter. The time-of-flight detector at VENUS will be the micro-channel-plate Timepix detector and will be positioned 25 m away from the source. This manuscript describes the instrument general layout, explains the choice of the moderator, and specifies the VENUS key capabilities. It also provides the status of the construction project with installed components. Discussions about software development are also presented.
| Original language | English |
|---|---|
| Article number | 012004 |
| Journal | Journal of Physics: Conference Series |
| Volume | 2605 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2023 |
| Event | 9th International Topical Meeting on Neutron Radiography, ITMNR 2022 - Buenos Aires, Argentina Duration: Oct 17 2022 → Oct 21 2022 |
Funding
This research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. The co-authors would like to thank the SNS and Hight Flux Isotope Reactor engineering, operations and installation teams who contribute to the VENUS construction project. A special thank you to Ms. Molly Brewer for her incredible administrative support. The VENUS team would like also to thank the VENUS Advisory Committee (VAC), who has kindly made recommendations to improve the instrument performance and ease of operations and maintenance. In alphabetical order, the VAC is composed of: Dr. Aaron Craft from Idaho National Laboratory in the USA, Dr. Daniel Hussey from the NIST Center for Neutron Research in the USA, Dr. Winfried Kockelmann from the ISIS Facility, Rutherford Appleton Laboratory in the U.K., Dr. Manuel Morgano from the European Spallation Neutron Source in Sweden, Dr. Javier Santisteban from Bariloche Atomic Center in Argentina, Dr. Burkhard Schillinger from Forschungs-Neutronenquelle Heinz Maier-Leibnitz in Germany, Dr. Takenao Shinohara, from the Japanese Spallation Neutron Source in Japan, and Dr. Anton Tremsin, the VAC chair, from the University of California in Berkeley in the USA. 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).