DEMAND, a Dimensional Extreme Magnetic Neutron Diffractometer at the High Flux Isotope Reactor
AbstractA two-dimensional (2D) Anger camera detector has been used at the HB-3A four-circle single-crystal neutron diffractometer at the High Flux Isotope Reactor (HFIR) since 2013. The 2D detector has enabled the capabilities of measuring sub-mm crystals and spin density maps, enhanced the efficiency of data collection and phase transition detection, and improved the signal-to-noise ratio. Recently, the HB-3A four-circle diffractometer has been undergoing a detector upgrade towards a much larger area, magnetic-field-insensitive, Anger camera detector. The instrument will become capable of doing single-crystal neutron diffraction under ultra-low temperatures (50 mK), magnetic fields (up to 8 T), electric fields (up to 11 kV/mm), and hydrostatic high pressures (up to 45 GPa). Furthermore, half-polarized neutron diffraction is also available to measure weak ferromagnetism and local site magnetic susceptibilities. With the new high-resolution 2D detector, the four-circle diffractometer has become more powerful for studying magnetic materials under extreme sample environment conditions; hence, it has been given a new name: DEMAND. View Full-Text
Share & Cite This Article
Cao, H.; Chakoumakos, B.C.; Andrews, K.M.; Wu, Y.; Riedel, R.A.; Hodges, J.; Zhou, W.; Gregory, R.; Haberl, B.; Molaison, J.; Lynn, G.W. DEMAND, a Dimensional Extreme Magnetic Neutron Diffractometer at the High Flux Isotope Reactor. Crystals 2019, 9, 5.
Cao H, Chakoumakos BC, Andrews KM, Wu Y, Riedel RA, Hodges J, Zhou W, Gregory R, Haberl B, Molaison J, Lynn GW. DEMAND, a Dimensional Extreme Magnetic Neutron Diffractometer at the High Flux Isotope Reactor. Crystals. 2019; 9(1):5.Chicago/Turabian Style
Cao, Huibo; Chakoumakos, Bryan C.; Andrews, Katie M.; Wu, Yan; Riedel, Richard A.; Hodges, Jason; Zhou, Wenduo; Gregory, Ray; Haberl, Bianca; Molaison, Jamie; Lynn, Gary W. 2019. "DEMAND, a Dimensional Extreme Magnetic Neutron Diffractometer at the High Flux Isotope Reactor." Crystals 9, no. 1: 5.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.