| NUCLEAR PHYSICS |
|
|
|
|
Extraction of Mechanical-Reactivity Influences from Neutron Noise Spectra at the IBR-2 Reactor |
| M. Dima1**, Yu. Pepelyshev2 |
1Institute for Physics and Nuclear Engineering, DFCTI, Romania
2Joint Institute for Nuclear Research, FLNP, RU-141980 Dubna, Moscow, Russia
|
|
| Cite this article: |
|
M. Dima, Yu. Pepelyshev 2013 Chin. Phys. Lett. 30 072801 |
|
|
|
|
Abstract Neutron noise spectra in nuclear reactors are a convolution of multiple-induced reactivities. For the IBR-2 pulsed reactor (JINR-Dubna), one part is represented by the reactivities induced by the two moving reflectors, and the other part by other sources that are moderately stable. In the present study, using recordings of the mechanical noise of the two moving reflectors, their non-linear correlations into the power spectra of the reactor are extracted using statistical analysis. The remaining noise sources are moderately stable noise and can be further monitored by other automated reactor diagnoses.
|
|
|
Received: 15 October 2012
Published: 21 November 2013
|
|
| PACS: |
28.41.-i
|
(Fission reactors)
|
| |
28.41.Rc
|
(Instrumentation)
|
| |
28.41.My
|
(Reactor control systems)
|
| |
28.41.Te
|
(Protection systems, safety, radiation monitoring, accidents, and dismantling)
|
|
|
|
|
|
[1] Kendall D G 1966 J. London Math. Soc. 41 385
Harris T E 1963 The Theory of Branching Processes (Berlin: Springer-Verlag)
[2] de Candolle A 1873 Histoire des Sciences et des Savants
Galton F 1873 Educational Times Problem 4001
Watson H W and Galton F 1875 J. Anthropological Inst. Great Britain 4 138
[3] Feynman R P et al 1956 J. Nucl. Energy 3 64
[4] Pal L 1958 Nuovo Cimento Suppl. 7 Series X, 1 25
Bell G I 1965 Nucl. Sci. Eng. 21 390
Pazsit I and Pal L 2007 Neutron Fluctuations: A Treatise on the Physics of Branching Processes (Amsterdam: Elsevier)
Pazsit I and Enqvist A 2008 Neutron noise in zero power systems: A primer in the physics of branching processes (Chalmers University)
Kuang Z F and Pazsit I 2001 Proc. R. Soc. London Ser. A 458 233
Pal L and Pazsit I 2006 Phys. Scr. 74 62
[5] Fang C et al 2012 Acta Phys. Sin. 61 170515 (in Chinese)
[6] Frank I M and Pacher P 1983 Physica B 120 37
Pepelyshev Yu N and Popov A K 2006 At. Energy 101 549
[7] Dzwinel W et al 2003 Prog. Nucl. Energy 43 145
Pepyolyshev Yu N 2008 Ann. Nucl. Energy 35 1301
Dzwinel W and Pepyolyshev Yu N 1995 Pattern Recognition, Neutral Networks, Genetic Algorithms and High Performance Computing in Nuclear Reactor Diagnostics: Results and Perspectives, 7th Symposium on Nuclear Reactor Surveillance and Diagnostics SMORN VII 4.5 302
Dzwinel W and Pepyolyshev Yu N 1991 Ann. Nucl. Energy 18 117
[8] Myers J L and Well A D 2003 Research Design and Statistical Analysis (Lawrence Erlbaum) p 508
Maritz J S 1981 Distribution-Free Statistical Methods (Chapman & Hall) p 217
[9] Akaike H 1974 IEEE Trans. Autom. Control 19 716 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
