Numerical design of a 20MW lead–bismuth spallation target with an injection tube
| Autor: | Tae Yung Song, Yonghee Kim, Chungho Cho, Yong-Bum Lee |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Mechanical Engineering Nuclear engineering chemistry.chemical_element Nuclear reactor Bismuth Power (physics) Volumetric flow rate law.invention Nuclear physics Nuclear Energy and Engineering chemistry law Hybrid reactor General Materials Science Tube (fluid conveyance) Spallation Safety Risk Reliability and Quality Waste Management and Disposal Beam (structure) |
| Zdroj: | Nuclear Engineering and Design. 238:90-101 |
| ISSN: | 0029-5493 |
| DOI: | 10.1016/j.nucengdes.2007.06.011 |
| Popis: | A spallation target system is a key component to be developed for an accelerator driven system (ADS). It is known that a 15–25 MW spallation target is required for a practical 1000 MWth ADS. The design of a 20 MW spallation target is very challenging because more than 60% of the beam power is deposited as heat in a small volume of the target system. In the present work, a numerical design study was performed to obtain the optimal design parameters for a 20 MW spallation target for a 1000 MWth ADS. A dual injection tube was proposed for a reduction of the lead–bismuth eutectic (LBE) flow rate at the target channel. The results of the present study show that a 30 cm wide proton beam with a uniform beam distribution should be adopted for a spallation target of a 20 MW power. When the dual LBE injection tube is employed, the LBE flow rate could be reduced by a factor of 7 without reducing the allowable beam current. |
| Databáze: | OpenAIRE |
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