Optimization of hybrid-type instrumentation for Pu accountancy of U/TRU ingot in pyroprocessing

Development of prototype induced-fission-based Pu accountancy instrument for safeguards applications

“…In a previous study (Seo et al, 2016), various detector parameters (i.e., inter-detector distance between the close and far rings, inner and outer moderator thicknesses, and the detection efficiency of far detectors) were examined to determine the optimal condition of a hybrid system. In addition, the FNEM, PNAR, and hybrid signals as a function of the Pu mass in a U/TRU product were estimated by MCNP simulations.…”

Electrode reaction of Pr on Sn electrode and its electrochemical recovery fromLiCl‐KClmolten salt

“…6 The recovery of actinide elements by partitioning and transmutation, considered as one of the promising options for spent fuel management, can make full use of nuclear fuel and minimize nuclear wastes, 7 which is conducive to increase the utilization rate of nuclear energy. [8][9][10][11][12][13] Since molten salt has some excellent characteristics, 14,15 for instance, radiation resistance, short cooling time, and antiproliferative properties, pyrometallurgical technology, employing molten salt as medium, is considered as a promising method in the field of separation and extraction of actinides, 16,17 which mainly includes reduction extraction in molten saltliquid metal system, 18,19 electrorefining, 20,21 and electrochemical extraction using reactive cathodes. [22][23][24][25][26] Wherein, electrochemical extraction is the most extensive pyrochemical separation process.…”

Electrochemical Extraction of Praseodymium by Formation of Zn-Pr Alloy in LiCl-KCl Melts with the Assistance of ZnCl2and Liquid Zn

“…In recent years, for achieving closed circulation and sustainable development of nuclear fuel, many strategies such as partitioning and transmutation (P&T) of long-lived fission products and minor actinides had been developed in many countries. [1][2][3] In the process of partitioning and transmutation strategy, hazardous radionuclides could be recycled or destroyed into less hazardous or shorter lived elements. 4 However, during the process of transmutation, minor actinides elements must be separated from the fission products, especially the rare earth fission products.…”