Advances on detectors for low-angle scattering of epithermal neutrons

摘要

The Very Low Angle Detector (VLAD) installed at the ISIS spallation neutron source is a novel instrument for epithermal neutron scattering with a range of applications in solid state physics. VLAD extends the kinematical space of the VESUVIO spectrometer to low momentum transfers at neutron energies above 1 eV. Measurements at scattering angles as low as 1 degrees. have been made with limitations due to the achievable signal/background ratio.