project-x accelerator and proposed accelerator requirements for the transmutation demonstration

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Project-X Accelerator and Proposed Accelerator Requirements for the Transmutation Demonstration . Shekhar Mishra 2 Project-X (Yousry Gohar 1 , David Johnson 2 , Todd Johnson 2 ) 1 Argonne National Laboratory 2 Fermi National Accelerator Laboratory. Project-X: Nuclear Energy Application. - PowerPoint PPT Presentation

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Project-X Accelerator and Proposed Accelerator Requirements for the Transmutation Demonstration

Project-X Accelerator and Proposed Accelerator Requirements for the Transmutation Demonstration Shekhar Mishra2 Project-X

(Yousry Gohar1, David Johnson2, Todd Johnson2) 1 Argonne National Laboratory2 Fermi National Accelerator Laboratory

Project-X: Nuclear Energy ApplicationThe recent advancements in the Superconducting Radio Frequency accelerator technology make the application of High Intensity Proton Accelerator for the Nuclear Energy feasible.Fermilab Project-X will provide an unprecedented experimental and demonstration facility in the United States.

What is Established ?These studies have addressedThe current status of the accelerator and target technologyThe technical requirements for Accelerator Driven System (ADS)The R&D needed in both accelerator and target technologyThese recent studies have established thatThere have been fundamental developments in the accelerator technology that could make the ADS possible.The accelerator technology is ready to support a demonstration project. Reliability of the acceleratorIssue: Transmutation of Spent fuelAn accelerator-driven subcritical system is ideally suited to burn the most problematic isotopes in spent fuel.Spent fuel would roughly take 300,000 years to reach the radiotoxicity of natural uraniumSpent fuel processing (removal of PU and U) followed by transmutation of Minor Actinidesusing a Accelerator Based System can reduce the time to about 500 years.

Mission Need: TransmutationThe issue of high radiotoxicity and lifetime of spent nuclear fuel is a challenge facing the nation today.Either fast reactors or subcritical accelerator-driven systems can be used for the transmutation of the spent nuclear fuel from the US light water reactors. The near-term problem is that the US industry is unlikely to build enough fast reactors for the utilization of the spent fuel. Hence it is crucial to develop alternate technologies using accelerators. It is proposed that spent nuclear fuel processing followed by accelerator based transmutation could significantly reduce the lifetime and amount of nuclear waste the United States has to put in geological disposal. At the same time this process could also be used to produce clean electricity (nuclear energy). Mission Need: Material R&DThe nuclear reactor design (fission or fusion reactors) requires better understanding and development of the materials and structure Capable of functioning reliably for a long time in environments with high temperatures, reactive chemicals, high stresses and high radiation. The steady-state operations of fission and fusion reactors can be well simulated by the radiation conditions from a CW proton linac.

Need: Beam Energy and Power

Neutron yield as a function of proton energy for one set of target and moderator conditionBeam Energy 1-2 GeV

Beam power needed to drive a 0.8 GW ADS sub-critical core as a function of ksrc, the effective neutron multiplication factor. Beam Power 1 MWAccelerator RequirementBeam ParameterParameter value or range for the Transmutation Demonstration ExperimentBeam Power1-2 MWBeam Energy1-2 GeVBeam Time StructureContinuous WaveBeam trips (1

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