MEASUREMENT OF NEUTRON AND GAMMA SPATIAL DISTRIBUTION IN RADIAL CHANNEL AT VR1 REACTOR

This work gives the theoretical description with a practical measurement of neutron and gamma spatial distributions in a radial experimental channel (RC) at VR1 research reactor. For providing the measurements an "off-line" and "on-line" methods were used. The "on-line" measurement of neutron spatial distribution was performed with a He-3 gas filled detector. From the "off-line" measurements Neutron Activation method (for neutron detection) and Theitholuminescent method (for gamma radiation detection) were chosen. Results obtained from experiments were compared with the results from MCNP code.