This book gives the theoretical description and practical measurement of the neutron and gamma spatial distribution in the radial experimental channel at VR-1 research reactor. For providing these measurements two experimental techniques were explained and used: off-line and on-line methods. On-line measurement of neutron spatial distribution was performed with He-3 gas filled detector. From off-line measurements Neutron Activation Analysis (for neutron detection) and Thermoluminescent method (for gamma radiation detection) were chosen. Obtained results from the experiments were compared with the results from the MCNP code in order to verify their correctness.