Sentence examples for minor actinides at from inspiring English sources
Recent experimental investigations on major and minor actinides at the JRC-IRMM are presented.
An ionization chamber with fast timing properties was built at CERN for measuring fission cross-sections of minor actinides at the n_TOF neutron beam.
In addition to being a multi-purpose irradiation facility, MYRRHA should be able to demonstrate the Acceleration Driven System concept at ∼100 MW power level and an efficient transmutation of minor actinides, as main contributors to high-level long-lived radioactive wastes.
But the neutron capture of the large corresponding U-238 fuel fraction also generates a build-up of plutonium isotopes and minor actinides as Neptunium, Americium and Curium.
The transmutation rate of minor actinides is approximately 250 kg/y at 80% load factor.
The neutronic and thermomechanical performances of two composite fuel systems: CERCER with (Pu,Np,Am,Cm O2−x fuel particles in ceramic MgO matrix and CERMET with metallic Mo matrix, selected for transmutation of minor actinides in the European Facility for Industrial Transmutation (EFIT), were analysed aiming at their optimisation.
The MYRRHA reactor concept is devoted to be a multi-purpose irradiation facility aimed at demonstrating the efficient transmutation of long-lived and high radiotoxicity minor actinides, fission products and the associated technology.
For a fuel mixture of plutonium and minor actinides a significant burn-up of these actinides up to 20% can be achieved but at the expense of a higher residual fraction of plutonium in the burned fuel.
Among remaining heavy nuclides, the most radioactive are minor actinides.
Combining thorium with a significant fraction of minor actinides and burned LWR plutonium results in a nearly unchanged amount of minor actinides while the isotope composition significantly changes.
As the cooling time increases, excess reactivity at the beginning of the equilibrium cycle (BOEC) decreases, thereby creating advantageous reactivity control and improving the transmutation performance of minor actinides.
