Neutrons Sciences Directorate at ORNL

HYSPEC—Hybrid Spectrometer

Hybrid Spectrometer

Schematic of the HYSPEC instrument

Developed by a team from leading U.S. universities and national laboratories and an international group of neutron scattering experts, HYPSEC is a new concept in high-flux inelastic neutron spectrometry. It combines the time-of-flight technique used at pulsed sources, such as SNS, with the advantages of crystal spectrometers that use continuous neutrons.

HYSPEC is optimized for studying single-crystal samples in a broad variety of sample environments and allows for ground-breaking investigations of the low-energy, atomic-scale dynamical properties of crystalline solids. This instrument is equipped with a polarization analysis capability, making it the first world's first polarized beam inelastic instrument available at a pulsed spallation source.

Applications

HYSPEC's first users

First users at HYSPEC: David Fobes (left) and Igor Zaliznyak. Both are both from Brookhaven National Laboratory's Neutron Scattering Group.

  • Superconductors
  • Strongly correlated electron materials
  • Ferroelectrics
  • Lattice and magnetic dynamics
  • Phase transitions
  • Quantum critical points
  • Complex phases in intermetallic compounds
  • Frustrated magnets
  • Low-dimensional magnetic excitations
  • Transition metal oxides
  • Spin and lattice dynamics in nanostructures

Availability

Commissioning for unpolarized neutrons is mostly complete; commissioning for polarized neutrons has begun. HYSPEC is accepting proposals for the spring 2013 cycle, with limited availability for general users. The proposal deadline is September 5, 2012. Please contact Barry Winn to discuss the feasibility of your experiment before submitting a proposal. More information about submitting proposals.

First User Experiments Commissioned

HYSPEC began commissioning user experiments in May 2012. Igor Zaliznyak, a member of the instrument development team, and David Fobes, both from Brookhaven National Laboratory, were at the instrument studying “unusual low-energy excitation near q=0 in Fe1+yTe."