A neutronics experiment has been performed at the 14 MeV Frascati Neutron Generator (FNG) to validate the calculations of shut down dose rates inside the ITER cryostat. A proper experimental set-up, in which a neutron spectrum is generated similar to that occurring in the ITER vacuum vessel, has been irradiated for sufficiently long time to create a level of radioactivity which has been followed, after shut down, by dosemeters for more than 2 months of cooling time. The experiment has been analysed using a rigorous, standard two-step method, i.e. using MCNP-4-B and FISPACT codes, and a new one-step method with an ad hoc modified version of MCNP code used in the nuclear analysis of ITER. FENDL-2 nuclear data libraries are used in both cases. The comparison between experiment and calculations shows a good agreement in both cases. © 2001 Elsevier Science B.V. All rights reserved.
All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Nuclear Energy and Engineering
- Civil and Structural Engineering
- Mechanical Engineering
Batistoni, P., Angelone, M., Petrizzi, L., & Pillon, M. (2001). Experimental validation of shut down dose rates calculations inside ITER cryostat. Fusion Engineering and Design, 58-59, 613 - 616. https://doi.org/10.1016/S0920-3796(01)00516-6