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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 1,600 - 1,609 (10page)
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The accelerator-driven subcritical system (ADS) is driven by a neutron source from spallation reactionsintroduced by the injected proton beam. Part of the neutron source has energy as high as a few hundredMeV to a few GeV. The effects of high-energy source neutrons (En > 20 MeV) are usually approximated byenergy cut-off treatment in practical core calculations, which can overestimate the predicted protonbeam current in the ADS design. This article intends to quantize this effect and propose a way to solvethis problem. To evaluate the effects of high-energy neutrons in the subcritical core, two models areestablished aiming to cover the features of current experimental facilities and industrial-scale ADS in thefuture. The results show that high-energy neutrons with En > 20 MeV are of small fraction (2.6%) in theneutron source, but their contribution to the source efficiency is about 23% for the large scale ADS. Basedon this, a neutron source efficiency correction factor is proposed. Tests show that the new correctionmethod works well in the ADS calculation. This method can effectively improve the accuracy of theprediction of the proton beam current.
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참고문헌 (26)
참고문헌 신청
A. Ferrari / 2005 / FLUKA: A Multi-particle Transport Code
A. Fokau / 2010 / A source efficient ADS for minor actinides burning / Ann. Nucl. Energy 37 : 540 ~ 545
D. I. Poston / 1998 / Users Manual, Version 1.00 for Monteburns, Version 3.01
D. Pelowitz / 2011 / MCNPX User's Manual, Version 2.7. 0
H. Shahbunder / 2010 / Effects of neutron spectrum and external neutron source on neutron multiplication parameters in accelerator-driven system / Ann. Nucl. Energy 37 : 1785
A. Fokau / 2010 / A source efficient ADS for minor actinides burning / Ann. Nucl. Energy 37 : 540 ~ 545
D. I. Poston / 1998 / Users Manual, Version 1.00 for Monteburns, Version 3.01
D. Pelowitz / 2011 / MCNPX User's Manual, Version 2.7. 0
H. Shahbunder / 2010 / Effects of neutron spectrum and external neutron source on neutron multiplication parameters in accelerator-driven system / Ann. Nucl. Energy 37 : 1785
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