Partitioning and transmutation studies at JAERI both under OMEGA program and High-Intensity Proton Accelerator Project

Deterministic and Monte Carlo modeling and analyses of YALINA-THERMAL subcritical assembly.

“…103 It is defined by equation 15. , In analogy with the YALINA booster analyses, 44 the adjoint-weighted prompt neutron lifetime has been calculated with Monte Carlo computer programs by introducing a small concentration of 10 B homogeneously distributed in the whole assembly. This calculation methodology is referred to as the 1/v method 104 and it is based on the first order perturbation theory and on the linear behavior of the k , respectively; the covariance term has been neglected.…”

“…[1][2][3][4][5][6][7] These transmuters are referred to as Accelerators Driven Systems (ADS). Research programs for partitioning and transmuting nuclear waste by ADS are under development in Japan, [8][9][10][11] China, 12 Europe, [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] and Russia. [32][33][34] In Europe, the MUSE program was carried out at the MASURCA facility in Cadarache, France.…”

Thermodynamic and electrochemical properties of holmium and HoxAly intermetallic compounds in the LiCl-KCl eutectic

“…In this plan, the essential point is to efficiently separate actinides (An) over Ln, because Ln are troublesome neutron poisons and very detrimental for the following transmutation process. However, more annoying is, the chemical similarities of trivalent An and Ln which increase the challenges of the separation [10]. Whatever, molten salt based pyrochemical reprocessing of spent nuclear fuels is currently considered to be a potential alternative to the traditional hydrometallurgical reprocessing technologies.…”

Electrochemical behavior of actinides and actinide nitrides in LiCl–KCl eutectic melts

“…Japan Atomic Energy Research Institute (JAERI) has proposed the double-strata fuel cycle for transmutation of longlived minor actinides (MAs) [1]. The transmutation system proposed by JAERI is a Pb-Bi cooled sub-critical accelerator driven system with 15 N-enriched MAs nitride fuels.…”