Abstract

Accelerator Driven subcritical System (ADS) is recognized as an efficient nuclear waste transmutation device. Recently Chinese Academy of Sciences has made a plan to research and develop ADS. As one of the main options, Lead-Bismuth Eutectic (LBE) is chosen to be both of target material and coolant in the target system. In the present work, the generated neutrons of the liquid lead-Bismuth spallation target were studied for an ADS demonstration facility of 1000 MW thermal power. We have investigated the variation of neutron yield, neutron leadage and spatial energy deposition in terms of the different incident proton energy, target height, buffer height and buffer thickness. The information of generated neutrons, including energy spectrum, neutron angle distribution and neutron spatial distribution of the most effective scheme was studied.

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