The CHNRS CANDOR instrument is a cutting-edge neutron reflectometer designed to study surface and interface science across various fields. Unlike traditional monochromated reflectometers, CANDOR simultaneously collects data using a continuous range of neutron wavelengths from 4 Å to 6 Å, providing a 20-30× gain in sensitivity while reducing noise. This allows measurements that previously took a week to be completed in just a few hours.
CANDOR achieves this through its unique detector array design, consisting of 54 pyrolytic graphite monochromators arranged at different angles. As the beam passes through each monochromator, a narrow wavelength window is diffracted into one of the 54 thin film neutron detectors. The instrument currently employs 2 detector arrays, with the potential to expand to 26 arrays for increased intensity or simultaneous background measurement.
Source: https://www.nist.gov/ncnr/chrns-candor-white-beam-reflectometer
Keywords: Neutron Reflectometry, Chromatic Analysis, Quantum Materials
