neutron scattering
small-angle neutron scattering
low-Q neutron scattering
FIX:0000253
CHMO:0000184
small angle neutron scattering
SANS
A method for determining structure by measuring the change in direction or energy of scattered neutrons at small angles (corresponding to a scattering vector Q = (4/)sin(\pi/2) = 0.005–0.2 inverse degrees).