Monte Carlo studies in accelerator-driven systems for transmutation of high-level nuclear waste
Küçük Resim Yok
Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A spallation neutron source was modeled using a high energy proton accelerator. The aim is to maximize the minor actinides and fission products transmutation rates, which is created from the operation of nuclear power reactors for the production of electricity. The transmutation system is composed of a natural lead target, beam window, subcritical core, reflector, and structural material. The neutrons are produced by the spallation reaction of protons from a high intensity linear accelerator in the spallation target, and the fission reaction in the core. It is used a hexagonal lattice for the waste and fuel assemblies. The system is driven by a 1 GeV, 10 mA proton beam incident on a natural lead cylindrical target. The protons were uniformly distributed across the beam. The core is a cylindrical assembly. The main vessel is surrounded by a reflector made of graphite. The axes of the proton beam and the target are concentric with the main vessel axis. The structural walls and the beam window are made of the same material, stainless steel, HT9. We investigated the following neutronics parameters: spallation neutron and proton yields, spatial and energy distribution of the spallation neutrons, and protons, heat deposition, and the production rates of hydrogen and helium, transmutation rate of minor actinides and fission products. In the calculations, the Monte Carlo code MCNPX, which is a combination of LAHET and MCNP, was used. To transport a wide variety of particles, The Los Alamos High Energy Transport Code (LAHET) was used.
Açıklama
13th International Conference on Emerging Nuclear Energy Systems 2007, ICENES 2007 -- 3 June 2007 through 8 June 2007 -- Istanbul -- 85239
Anahtar Kelimeler
Accelerator driven system, Cylindrical target, Energy distributions, Fuel assembly, Heat deposition, Hexagonal lattice, High intensity, High-energy proton accelerator, High-energy transport code, High-level nuclear wastes, Main vessel, Minor actinide, Monte Carlo codes, Monte Carlo study, Neutronics parameters, Nuclear power reactors, Production rates, Spallation neutron sources, Spallation neutrons, Spallation reactions, Spallation targets, Structural walls, Subcritical core, Transmutation systems, Actinides, Fission products, Helium, High energy physics, Monte Carlo methods, Neutron detectors, Neutron sources, Neutrons, Nuclear energy, Proton beams, Protons, Radioactive wastes, Reflection, Spalling, Stainless steel, Energy conversion
Kaynak
13th International Conference on Emerging Nuclear Energy Systems 2007, ICENES 2007
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
1
