Simulations of Accelerator Driven Systems (ADS) Aleksander Polanski Joint Institute for Nuclear Research, Dubna, Russia. The Andrzej Soltan Institute for.

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Presentation transcript:

Simulations of Accelerator Driven Systems (ADS) Aleksander Polanski Joint Institute for Nuclear Research, Dubna, Russia. The Andrzej Soltan Institute for Nuclear Studies, Swierk- Otwock, Poland. Joint IAEA-ICTP Workshop on Nuclear Reaction Data for Advanced Reactor Technologies

EUROTRANS Fuel: MOX (accept for a few MAFuel Assemblies) and (Pu, Am)O2. Accelerator: MeV power: 5~ 10MW

Models and Codes Used for Simulations Models Optical, microscopic Quantum molecular dynamic Cascade-evaporation Dual Parton and Glauber Codes Empire QMD Dubna Cascade MCNPX+ENDF/b-6 FLUKA MCB Monte Carlo Burnup

Neutrons Cross Sections

Pions Cross Sections

Description Of The Facilities. Vertical Cross Section of SAD CharacteristicsDestription MeV 660 protons, beam power 1 kW Thermal fission power25 kW Fuel elements BN % UO % PuO2 Height of a fuel active part580 mm Mass of fuel in element164.5 g Number of fuel elements in assembles 18 Number of fuel assembles 133 Maximal gain factorK =0.95 Heat-carrierair Reflectorslead Max neutron flux cm- 2 s- 1

MeV/proton kW 1 Central part of lead target First layer of lead target Second layer of lead target First layer of active zone , Second layer of active zone Тhird layer of active zone Fourth layer of active zone Fifth layer of active zone , Total energy deposition Energy Deposition

Schematic View of Horizontal Cross Section of the Sub Critical Assembly SAD

Beam power=2 kW System power=102 kW AC E+12 AC E+12 AC E+12 R14.16E+12 R23.30E+12 R32.71E+12 Neutron flux density in channels cm-2*s-1 SAD target design evaluations

Target: Pb+Pb+Pb Power: =709 Wats Neutron escaping: Target: W+Pb+Pb Power: =755 Wats Neutron escaping:12.06 Target: W+Pb+Be Neutron escaping: Energy realized (Watts) in target per beam power 1 kW. Neutron Escaping From the Target. E p =660 MeV.

Spallation Protons Leaking the Target Total : 6.29e+11 s-1 and 9.49e+11 s-1

Spallation Neutrons Leaking the Target Total : 2.27e+14 s-1 and 2.39e+14 s-1

Comparison of neutron spectra in experimental channel near the target

Neutron spectra in the centers of vertical experimental channels 1-3 for subcritical assembly with tungsten plus lead spallation target

System Power Vs Multiplication Factor for 1 kW Beam Power

Energy Gain of Subcritical Assembly SAD

Flux and Power of ADS 10 MW Beam Power TargetK -effProtons energy MeV F tot, n·cm- 2 ·sec -1 P heat, MW Pb0, · Pb0, ,9 · W + Pb0, ,1 ·

Conclusions Neutron flux·density about n·cm- 2 ·sec -1 Fast and resonance neutrons for transmutation Thermal power of system 1.2 GW. Beam power 10 MW. Energy of protons 1.2 GeV Lead target and helium cooling system of subcritical reactor Electrical power 0.4 * 1200 MW – 30 MW=450MW