[en] At the previous conferences it has been reported about the effective utilisation of the Rez research reactor LVR-15 in basic, interdisciplinary and applied research. Now, in our contribution we focus our attention on the scientific utilisation of the beam tubes at the low power research reactor. Namely, it is reported about the neutron scattering instrumentation development and the educational possibilities at the low power neutron sources. The feasibility of carrying out the methodology and instrumental development research at the low power neutron sources is demonstrated on designs of several high resolution and high luminosity neutron scattering instruments exploiting Bragg diffraction optics. Some of them have been already realized e.g. for small angle neutron scattering studies or residual strain/stress measurements. As the mentioned instrumental development and testing can be carried out at the low power neutron sources, due to the much lower safety requirements in comparison with the medium and high flux sources, they offer excellent educational and training programmes in neutron scattering or imaging for students.