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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 681 - 688 (8page)
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초록· 키워드
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The telegrapher's theory was used to develop a new formulation for the neutron noise equation. Telegrapher's equation is supposed to demonstrate a more realistic approximation for neutron transport phenomena, especially in comparison to the diffusion theory. The physics behind such equation implies that the signal propagation speed is finite, instead of the infinite as in the case of ordinary diffusion. This paper presents the theory and results of the development of a new method for calculation of the neutron noise using the telegrapher's equation as its basis. In order to investigate the differences and strengths of the new method against the diffusion based neutron noise, a comparison was done between the behaviors of two methods. The neutron noise based on SN transport considered as a precision measuring point. The Green's function techniquewas used to calculate the neutron noise based on telegrapher's and diffusion methods as well as the transport. The amplitude and phase of Green's function associated with the properties of the medium and frequency of the noise source were obtained and their behavior was compared to the results of the transport. It was observed, the differences in some cases might be considerable. The effective speed of propagation for the noise perturbations were evaluated accordingly, resulting in considerable deviations in some cases.
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참고문헌 (12)
참고문헌 신청
I. Pazsit / 2011 / Application of Noise Analysis in Nuclear Safeguards and in the Diagnostics of Current and Future Reactor Systems
C. Demaziere / 2004 / Development of a 2-D 2-group neutron noise simulator / Ann. Nucl. Energy 31(6):647~680
S. A. Hosseini / 2012 / Neutron noise simulation by GFEM and unstructured triangle elements / Nucl. Eng. Des 253:238~258
H. Malmir / 2015 / Propagation noise calculations in VVER-type reactor core / Prog. Nucl. Energy 78:10~18
M. Bahrami / 2018 / SN transport method for neutronic noise calculation in nuclear reactor systems : comparative study between transport theory and diffusion theory / Ann. Nucl. Energy 114:236~244
C. Demaziere / 2004 / Development of a 2-D 2-group neutron noise simulator / Ann. Nucl. Energy 31(6):647~680
S. A. Hosseini / 2012 / Neutron noise simulation by GFEM and unstructured triangle elements / Nucl. Eng. Des 253:238~258
H. Malmir / 2015 / Propagation noise calculations in VVER-type reactor core / Prog. Nucl. Energy 78:10~18
M. Bahrami / 2018 / SN transport method for neutronic noise calculation in nuclear reactor systems : comparative study between transport theory and diffusion theory / Ann. Nucl. Energy 114:236~244
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