Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Radiation-induced transformation of Hafnium composition

  • Ulybkin, Alexander (National Science Center "Kharkov Institute of Physics and Technology", "Institute of Solid State Physics, Materials Science and Technologies") ;
  • Rybka, Alexander (National Science Center "Kharkov Institute of Physics and Technology", "Institute of Solid State Physics, Materials Science and Technologies") ;
  • Kovtun, Konstantin (Scientific-Technological Center "Beryllium" of NAS of Ukraine) ;
  • Kutny, Vladimir (National Science Center "Kharkov Institute of Physics and Technology", "Institute of Solid State Physics, Materials Science and Technologies") ;
  • Voyevodin, Victor (National Science Center "Kharkov Institute of Physics and Technology", "Institute of Solid State Physics, Materials Science and Technologies") ;
  • Pudov, Alexey (National Science Center "Kharkov Institute of Physics and Technology", "Institute of Solid State Physics, Materials Science and Technologies") ;
  • Azhazha, Roman (National Science Center "Kharkov Institute of Physics and Technology", "Institute of Solid State Physics, Materials Science and Technologies")
  • Received : 2018.12.27
  • Accepted : 2019.06.07
  • Published : 2019.12.25
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Abstract

The safety and efficiency of nuclear reactors largely depend on the monitoring and control of nuclear radiation. Due to the unique nuclear-physical characteristics, Hf is one of the most promising materials for the manufacturing of the control rods and the emitters of neutron detectors. It is proposed to use the Compton neutron detector with the emitter made of Hf in the In-core Instrumentation System (ICIS) for monitoring the neutron field. The main advantages of such a detector in comparison the conventional β-emission sensors are the possibility of reaching of a higher cumulative radiation dose and the absence of signal delays. The response time of the detection is extremely important when a nuclear reactor is operating near its critical operational parameters. Taking Hf as an example, the general principles for calculating the chains of materials transformation under neutron irradiation are reported. The influence of 179m1Hf on the Hf composition changing dynamics and the process of transmutants' (Ta, W) generation were determined. The effect of these processes on the absorbing properties of Hf, which inevitably predetermine the lifetime of the detector and its ability to generate a signal, is estimated.

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References

  1. P.E. Blomberg, Reactor physics problems concerning the startup and operation of power reactors, in: Tech. Reports s. N143 Developments in the Рhysics of Nuclear Power Reactors, Vienna, IAEA, 1973, pp. 183-199. https://inis.iaea.org/collection/NCLCollectionStore/_Public/04/076/4076852.pdf.
  2. V.D. Rysovanyi, et al., Hafnium in Nuclear Power Engineering, NIIAR, Dimitrovgrad, 1993 (rus).
  3. D. Gosset, Absorber Materials for Generation IV Reactors, Woodhead Publishing Series in Energy: Number 106, Struct. Mat. For Gen. IV Nuclear Reactors, Elsevier Ltd, 2017, pp. 533-567. https://doi.org/10.1016/B978-0-08-100906-2.00015-X.
  4. B.A. Shilyaev, et al., Compton detector of neutrons for the energy yield control in the active zone of WWER, Prob. Atomic Sci. Technol. (PAST) $N_{-}^{\circ}2$ (108) (2017) 75-82. http://vant.kipt.kharkov.ua/ARTICLE/VANT_2017_2/article_2017_2_75.pdf.
  5. V.I. Mitin, et al., Experimental study of current formation in direct charge detectors with an emitter from rhodium, Atom. Energy 34 (1973) 301-303. https://link.springer.com/article/10.1007/BF02116038.
  6. W. H. Sr Todt, Characteristics of self-powered neutron detectors used in power reactors, in: Proceeding of Specialists' Meeting In-Core Instrumentation and Core Assessments, Mito-Spi, Japan, Oct 14-16, 1996, Nuclear Energy Agency, Organization for Economic Co-operation and Development, Paris, 1997, pp. 181-190.
  7. Y.I. Volodko, et al., Tests of Compton neutron detectors with an emitter containing hafnium in RBMK reactors, Atom. Energy 62 (6) (1987) 407-409, https://doi.org/10.1007/BF01124116.
  8. G. Friedlander, et al., Nuclear and Radiochemistry, Wiley, New York, 1964.
  9. A.A. Dogov, Interactive information system for simulation and visualization of nuclear transformationseNuclear evolution software, Nucl. Energy Technol. 2 (2) (2016) 91-96. https://doi.org/10.1016/j.nucet.2016.05.004.
  10. B.A. Shilyaev, et al., Hafnium in nuclear power industry: the evolution of increasing of the economic indicators and the operation safety of pressurized water nuclear reactors, Prob. Atom. Sci. Techno. (PAST) 1 (113) (2018) 43-50. http://vant.kipt.kharkov.ua/ARTICLE/VANT_2018_1/article_2018_1_43.pdf.
  11. A.L. Ulybkin, et al., Compton-emissive hafnium detector of neutrons for incore monitoring, Nucl. Phys. At. Energy, Section: Atom. Energy 19 (3) (2018) 237-243. https://doi.org/10.15407/jnpae2018.03.237.
  12. B.A. Shilyaev, K.V. Kovtun, Mathematical Modeling of the Hafnium Radiation Damage in the Core of Nuclear Fission Reactor, Kharkov, 2014, p. 54 (rus), NSC KIPT 2014-1.
  13. B.A. Shilyaev, et al., The sequential conversion of hafnium isotopes upon irradiation in the core of the WWER-1000 nuclear reactor, Kharkov, NSC KIPT 2017-1, 2017, 32 p. (rus).
  14. B.A. Shilyaev, et al., Basics of a New Compton SPND Development for the Core of a WWER-1000 Nuclear Reactor, Kharkov, 2017, p. 46 (rus), NSC KIPT 2017-2.
  15. W. Jaschik, W. Seifritz, Model for calculating prompt-response self-powered neutron detectors, Nucl. Sci. Eng. 53 (1974) 61-78. https://doi.org/10.13182/NSE74-A23330.
  16. M.N. Agu, H. Petitcolas, ${\gamma}$-compensated self-powered detectors for reactor instrumentation and control, Meas. Sci. Technol. 1 (10) (1990) 1047-1051, https://doi.org/10.1088/0957-0233/1/10/009.
  17. M.N. Agu, H. Petitcolas, Self-Powered detector response to thermal and epithermal neutron flux, Nucl. Sci. Eng. 107 (4) (1991) 374-384. https://doi.org/10.13182/NSE91-A23799.
  18. H. Bateman, The solution of a system of differential equations occurring in theory of radioactive transformations, Proc. Cambridge. Phil. Soc. 15 (-10) (1908) 423-427. https://archive.org/details/cbarchive_122715_solutionofasystemof differentia1843/page/n5.
  19. T.C. Ware, Measurement and Analysis of the Resolved Resonance Cross Section of Natural Hafnium Isotopes, PhD Thesis, School of Physics and Astronomy College of Engineering and Physical Sciences The University of Birmingham, June 2010, https://www.research.manchester.ac.uk/portal/files/32912077/FULL_TEXT.PDF.
  20. H. van Dam, T. van der Hagen, J. Hoogenboom, Nuclear Reactor Physics, 2005. http://www.janleenkloosterman.nl/reports/ap3341.pdf.
  21. A.D. Galanin, The Introduction in the Theory of Nuclear Reactors Based on Thermal Neutrons, Energoatomizdat, Moscow, 1984.
  22. C.H. Westcott, W.H. Walker, T.K. Alexander, Effective cross sections and cadmium ratios for the neutron spectra of thermal reactors, in: Proc. 2-d Int. U. N. Conf. Peaceful Uses At.Energy, Geneva, vol 16, 1958, p. 70.
  23. K. Shibata, et al., JENDL-4.0: a new library for nuclear science and engineering, J. Nucl. Sci. Technol. 48 (1) (2011) 1-30. https://doi.org/10.1080/18811248.2011.9711675.
  24. IAEA. NDS, Live Chart of Nuclides. Nuclear Structure and Decay Data. https://www-nds.iaea.org/relnsd/vcharthtml/VChartHTML.html.
  25. E. Norman, Holden, temperature dependence of the Westcott g-factor for neutron reactions in activation analysis, Pure Appl. Chem. 71 (12) (1999) 2309-2315. https://doi.org/10.1351/pac199971122309.
  26. K. Siegbahn, Beta-and Gamma-Ray Spectroscopy, first ed., North-Holland Publishing Comp. Amsterdam, 1955.
  27. S.A. Karamian, et al., Production of long-lived hafnium isomers in reactor irradiation, High Energy Phys. 2 (2006) 48-56. https://doi.org/10.1016/j.hedp. 2006.03.001.
  28. P. Rinard, Neutron interaction with matter, in: D. Reilly, et al. (Eds.), Passive Nondestructive Assay of Nuclear Materials, U.S. Nuclear Regulatory Commission, 1991, pp. 357-377. NUREG/CR-5550.
  29. Nucl. Phys. and React. Theory, v. 1, DOE fundamentals handbook, Dept. of Energy, 1993. Wash., D.C. DOE-HDBK-1019-1-93, https://www.steamtables online.com/pdf/Nuclear-Volume1.pdf.