Proposal of the ADS Research Stand Based on the Linac of the Institute for Nuclear Research of the Russian Academy of Sciences

The results of discussions about a research ADS stand at the Institute for Nuclear Research (INR) with a thermal power of up to 5 MW for nuclear transmutation investigations are summarized in this paper. The basic approaches to the design process are stated. The physical and design features of the research ADS stand fit comfortably in the existing infrastructure of the experimental area of the INR linear accelerator (linac). Among other aspects, the physical and technical safety, the horizontal input of the beam, additional barriers for safety, which exclude loss of coolant, are discussed. Features of the tungsten and uranium targets providing the maximal yield of neutrons and rather high lifetimes owing to the distributed thermal load on the beam window are described. Assembly of the stand featuring modules with a potential high degree of prefabrication (modularity) is proposed. Possible structures and geometries of blankets are discussed. Results of the initial design studies are given.