Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

A new Neutron Spin Echo Spectrometer on NG-A


The reactor outage will be used to install a new NSE spectrometer for the nation.  This instrument is being developed in collaboration with the University of Delaware’s Center for Neutron Science led by Prof. Norm Wagner.  It is  funded by the Mid-scale Research Infrastructure program, one of NSF’s 10 Big Ideas.  The instrument will largely be a copy of the new J-NSE Phoenix instrument built by JCNS and located at the MLZ in Garching, Germany.

The new instrument will employ optimally designed superconducting precession coils, increasing the maximum Fourier time 2.5x.  Installation is scheduled for 2023 during the cold source installation outage, thus minimizing down time.  This is expected to increase the data acquisition rate by roughly an order of magnitude for a given time window.  Combining the new design with the increased flux provided by the new cold source and several instrument elements optimized for long wavelength operation we expect to routinely achieve a Fourier time of 300 ns. Because of the improved long wavelength performance which should provide the same flux at 20 Å as we now have at 17 Å, we hope to reach 700 ns for strongly scattering samples.  We plan for commissioning to take 9 months after the reactor restarts so first users are expected in the fall of 2024.  Further Information on this project can be found at the Center for Neutron Science website.

Created April 8, 2020, Updated July 7, 2020