Reduction and Resource Recycling of
High-level Radioactive Waste
through Nuclear Transmutation
Project 3
[Reaction Theory Model and Simulation]
Improve Simulation Accuracy of Transmutation Reaction of Long-Lived Fission Products
Project leader
Koji Niita
Affiliation: Research Organization for Information Science and Technology
Research Fields: Nuclear Physics (Theory), Transport phenomena for particle and heavy-ion
Reaction Theory Model and Simulation
Purpose: Improve simulation accuracy of transmutation reaction of long-lived nuclides
Current Results
Impact of nuclear physics model improvement on transmutation evaluation
- Evaluation of impact on PHITS calculation -
Deuteron spallation cross-sectional area
- Improvement of a theoretical model for evaluation of nuclear data
with few cases of measurement
(Conventional) Practical theory recent model
(Improved) Improved nuclear theory model (New Minomo) - Implementation of impact evaluation (outcome)
(Result) Effective impact (tens of percent) to the transmutation rate
of the target energy region
Improvement of sectional area evaluation
Neutron capture cross-sectional area
- Calculation of microscopic E1 intensity function using
high-precision nuclear structure calculations
- Derivation of neutron capture cross-sectional
area (n,γ) incorporating microscopic E1 intensity function
