Shutdown dose rate assessment for a DCLL blanket-based reactor: Application of the R2S-UNED approach

Neutronics experiments and analyses in preparation of DT operations at JET

“…The latest versions of R2Smesh [5], MCR2S [6], R2SUNED [7] and Advanced D1S [8] were applied to perform the shutdown dose rate calculations at the experimental positions. Both Advanced D1S and R2Smesh are based on the MCNP5 [4] and FISPACT 2007 [10] codes.…”

“…The experimental data will be used to validate the European state-of-the-art computational tools for Shutdown Dose Rate (SDR) assessment used in ITER. Three different Rigorous-Two Step approaches (R2Smesh [5], MCR2S [6], and R2SUNED [7]) and a Direct-One Step tool (Advanced D1S [8]) based on MCNP Monte Carlo code will be employed in the benchmark analyses. The assessment of shutdown dose rate is a key issue for the design and maintenance operations of ITER components.…”

Shutdown dose rates at ITER equatorial ports considering radiation cross-talk from torus cryopump lower port

“…MCNP5.1.6 with MCPLIB05T photon data libraries were used for the decay photon transport analyses and computation of SDR field throughout the equatorial port interspace and tallies of interest. The whole computational cycle was automated by means of the R2S-UNED software [9]. ITER irradiation scenario SA2 and 10 6 s of cooling time, and ITER-standard dose conversion coefficient standards were employed [10,11].…”

Rigorous-two-Steps scheme of TRIPOLI-4® Monte Carlo code validation for shutdown dose rate calculation

“…A summary of the SDR mapping tools currently existing in Europe is given in [2]. There is one based on directone-step (D1S) treatment [3] and three following the rigorous-two-step (R2S) coupling methodology [4], [5] and [6].…”