In the past five years were carried out SANS (Small-Angle Neutron Scat
tering) measurements in the JINR to investigate latent and short etche
d tracks in SSNTD, The results demonstrate the suitability of the meth
od to study not etched and short etched tracks to analyse the etching
process, e.g. for nuclear track filter production, The results are in
good agreement with other methods as conductivity measurements,