Ultrasound Imaging in Nuclear Reactors Cooled by Liquid Metals


In nuclear reactors cooled by liquid metals, ultrasound is the only type of field that allows obtaining images of the reactor cores and diagnostics of the integrity of the fuel assemblies. The article discusses the features of the practical realization of ultrasonic imaging systems based on phased arrays and offers an alternative solution of imaging on the basis of the acoustic lenses of refractive and diffraction types. Using lenses eliminates many of the technical and technological problems associated with the development of multi-element phased arrays. It is shown that lens systems allow using traditional methods of transformation of acoustic fields into the visible images by 2D piezo matrix and a more promising way of acoustooptical transformation based on coherent optical interferometry.

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Svet, V. and Dement'ev, D. (2015) Ultrasound Imaging in Nuclear Reactors Cooled by Liquid Metals. Open Journal of Acoustics, 5, 11-24. doi: 10.4236/oja.2015.51002.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Barrett, L.M., McKnight, J.A. and Forthergill, J.R. (1984) Ultrasonic Viewing in Fast Reactors. Physics in Technology, 15, 308-314.
[2] Griffin, J.W., et al. (2009) Under Sodium Viewing: A Review of Ultrasonic Imaging Technology for Liquid Metal Fast Reactors. Pacific Northwest National Laboratory, Richland, PNNL-18292.
[3] Jasiūniene, E. (2007) Ultrasonic Imaging Techniques for Non-Destructive Testing of Nuclear Reactors, Cooled by Liquid Metals, Review. Ultragarsas (Ultrasound), 62.
[4] Takagi, K., Otaka, M., Arai, T., Yoda, S., Nagai, S., Suzuki, T., Miura, T. and Karasawa, H. (2000) Development of Novel Visualization Technique of Flow Field for Liquid Metals Using High Temperature Ultrasonic Transducer. Proceedings of the 2000 ASME Fluids Engineering Division Summer Meeting, Boston, 11-15 June 2000, 331-336.
[5] Kazys, R., Voleisis, A., Sliteris, R., Mazeika, L., Van Nieuwenhove, R., Kupschus, P. and Abderrahim, H.A. (2002) Investigation of Ultrasonic Properties of a Liquid Metal Used as a Coolant in Accelerator Driven Reactors. 2002 IEEE Ultrasonics Symposium, 1, 815-818.
[6] Bond, L.J., Doctor, S.R., Bunch, K.J., Good, M.S. and Waltar, A.E. (2007) Instrumentation, Monitoring and NDE for New Fast Reactors. Advanced Nuclear Fuel Cycles and Systems (GLOBAL 2007), Boise, 1274-1279.
[7] Griffin, J.W., Bond, L.J., Jones, A.M. and Peters, T.J. (2010) Design of High Temperature Ultrasonic Linear Arrays for Under-Sodium Viewing. 7th International Topical Meeting on Nuclear Plant Instrumentation, Control and Human Machine Interface Technologies (NPIC&HMIT 2010), Las Vegas, 7-11 November 2010, 1600-1614.
[8] Abderrahim, H.A., et al. (2003) MYRRHA, a Multi-Purpose Accelerator Driven System for R&D. State-of-the-Art of the Project at Mid-2003. Proceedings of International Workshop on P&T and ADS Development, Mol, Belgium, 6-8 October 2003.
[9] Kazys, R., Voleišis, A., Šliteris, R., Voleišiene, B., Mazeika, L., Kupschus, P. and Abderrahim, H.A. (2006) Development of Ultrasonic Sensors for Operation in a Heavy Liquid Metal. IEEE Sensors Journal, 6, 1134-1143.
[10] Kazys, R., Voleišis, A., Šliteris, R., Mazeika, L., Van Nieuwenhove, R., Kupschus, P. and Abderrahim, H.A. (2005) High Temperature Ultrasonic Transducers for Imaging and Measurements in a Liquid Pb/Bi Eutectic Alloy. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 52, 525-537.
[11] Kazys, R., Mazeika, L., Jasiūniene, E., Šliteris, R., Kupschus, P., Van Nieuwenhove, R. and Abderrahim, H.A. (2003) Ultrasonic Imaging Techniques for the Visualization in Hot Metals. Proceedings of the World Congress on Ultrasonics, Paris, 7-10 September 2003, 1391-1394.
[12] Kazys, R., Mazeika, L., Voleišis, A., Šliteris, R., Jasiūniene, E., Abderrahim, H.A. and Dierckx, M. (2007) Ultrasonic Imaging in the Liquid Metals. International Journal of Applied Electromagnetics and Mechanics, 25, 249-256.
[13] Rajendran, A., Asokane, C., Elumalai, G. and Swaminathan, K. (1996) Development of an Ultrasonic Under-Sodium Scanner for the Fast Breeder Test Reactor. Proceedings of the 14th World Conference on Non-Destructive Testing, New Delhi, 8-13 December 1996, 349-352.
[14] Karasawa, H., Izumi, M., Suzuki, T., Nagai, S., Tamura, M. and Fujimori, S. (2000) Development of Under-Sodium Three-Dimensional Visual Inspection Technique Using Matrix Arrayed Ultrasonic Transducer. Journal of Nuclear Science and Technology, 37, 769-779.
[15] Swaminathan, K., Rajendran, A. and Elumalai, G. (1990) The Development and Deployment of an Ultrasonic Under-Sodium Viewing System in the Fast Breeder Test Reactor. IEEE Transactions on Nuclear Science, 37, 1571-1577.
[16] Imbert, C., Berton, J.L. and Gimenez, N. (1996) Realization of Ultrasonic Images of Immersed Metallic Structures Using a Digital Beam Forming System. Experimental Study. Proceedings of the 1996 IEEE Ultrasonics Symposium, San Antonio, 3-6 November 1996, 765-770.
[17] Song, S.-J., Shin, H.J. and Jang, Y.H. (2002) Development of an Ultra Sonic Phased Array System for Nondestructive Tests of Nuclear Power Plant Components. Nuclear Engineering and Design, 214, 151-161.
[18] Yang, P., Chen, B. and Shi, K.-R. (2006) A Novel Method to Design Sparse Linear Arrays for Ultrasonic Phased Array. Ultrasonics, 44, 717-721.
[19] Martin, L., Pepe, D. and Dupraz, R. (2002) Lifetime Extension of the Phenix Nuclear Power Plant. Proceedings of a Technical Meeting, Cadarache, 11-15 March 2002, 83-91.
[20] Giraud, M., Major, P., Gros, J., Martin, L., Benoist, P. and Burat, O. (2002) Advanced and Innovative Approaches to Inspect the Phenix Fast Breeder Reactor. Proceedings of a Technical Meeting, Cadarache, 11-15 March 2002, 83-98.
[21] Belcher, E.O. (1999) Limpet Mine Imaging Sonar. Proceedings of the 13th Annual International Symposium on Areo Sense, Orlando, April 1999, 2-10.
[22] Belcher, E.O., Lynn, D.C., Dinh, H.Q. and Laughlin, T.J. (1999) Beamforming and Imaging with Acoustic Lenses in Small, High-Frequency Sonars. Proceedings of Oceans 99MTS\IEEE, Seattle, 13-16 September 1999, 1495-1499.
[23] Baikov, S.V., Svet, V.D. and Sizov, V.I. (2000) Experimental Investigation of the Resolution and Sensitivity of Ultrasonic Imaging Camera with an Immersion Lens. Akusticheskij Zhurnal, 46, 596-600.
[24] Korobov, A.I., Burov, V.A., Dmitriev, K.V. and Rumyantseva, O.D. (2012) Resonance Acoustical Spectrometry of Solids. Physical Department, Moscow State University, Moscow, 30.
[25] Svet, V.D., Dement’ev, D.A. and Galoutin, V.Z. (2014) On Some Problems of Ultrasonic Visualization of Objects in Liquid Metals. Proceedings of the First Russian Acoustical Conference, Moscow, 6-10 October 2014.

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