SQUID Detectors for Non-destructive Evaluation in Industry

  • W. NawrockiEmail author
Conference paper
Part of the NATO Science for Peace and Security Series A: Chemistry and Biology book series (NAPSA)


This review paper describes DC-SQUID detectors and SQUID measurement systems used for non-destructive evaluation of materials. Extremely sensitive detectors of magnetic flux, SQUIDs can be used as preamplifiers in setups for measuring many physical quantities. DC-SQUIDs have better energy resolution \(\varepsilon\) and lower noise level Φ r than RF-SQUIDs. Both parameters are discussed in this paper. The best DC-SQUIDs have an energy resolution as good as 0.5h (where h is Planck’s constant). SQUID measurement systems are used not only for material testing and inspection in industry but also in biomagnetic studies (especially in medicine), in geology, military tasks, thermometry and many other fields.


Magnetic Flux Josephson Junction Magnetic Dipole Moment Shunt Resistance Good Energy Resolution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    Clarke J, Goubau WM, Ketchen MB (1976) Tunnel junction dc-SQUID: fabrication, operation and performance. J Low Temp Phys 25:99ADSCrossRefGoogle Scholar
  2. 2.
    Burghoff M (2002) Proceedings of the 13th international conference on biomagnetism, JenaGoogle Scholar
  3. 3.
    Likharev K, Semenov V (1972) Fluctuation spectrum in superconducting point junctions. Pisma Zhurnal Eksperim i Teoret Fizyki 15:625Google Scholar
  4. 4.
    Ketchen MB (1992) Design and fabrication considerations for extending integrated dc-SQUIDs to the deep-submicron regime. In: Koch H, Lbbig H (eds) Superconducting devices and their applications. Springer, Berlin, p 256CrossRefGoogle Scholar
  5. 5.
    Donaldson GD, Cochran A, McKirdy AD (1996) The use of SQUIDs for nondestructive evaluation. In: Weinstock H (ed) SQUID sensors. NATO ASI series. Kluwer, Dordrecht/Boston, p 599Google Scholar
  6. 6.
    Granata C, Vettoliere A (2015) Nano superconducting interference devices: a powerful tool for nanoscale investigations. ArXiv:
  7. 7.
    Nawrocki W (2016) Introduction to quantum metrology: quantum standards and instrumentation. Springer, Heidelberg, p 273Google Scholar
  8. 8.
    Kruchinin S, Nagao H (2012) Nanoscale superconductivity. Int J Mod Phys B 26:1230013ADSCrossRefzbMATHGoogle Scholar
  9. 9.
    Andrä W, Nowak H (2006) Biomagnetic instrumentation. In: Magnetism in medicine, 2nd edn. Wiley-VCH, LondonGoogle Scholar
  10. 10.
    Chen H-H et al (2011) DC-SQUID based NMR detection from room temperature samples. J Appl Phys 110:093903Google Scholar
  11. 11.
    White DR et al (1996) The status of Johnson noise thermometry. Metrologia 33:325ADSCrossRefGoogle Scholar
  12. 12.
    Paik HJ (1996) Superconducting accelerometers, gravitational-wave transducers, and gravity gradiometers. In: Weinstock H (ed) SQUID sensors. NATO ASI series. Kluwer, Dordrecht, The Netherlands, p 569Google Scholar
  13. 13.
    Clen TR et al (1996) Superconducting magnetic gradiometers for mobile applications with an emphasis on ordnance detection. In: Weinstock H (ed) SQUID sensors. NATO ASI series. Kluwer, Dordrecht, The Netherlands, p 517Google Scholar
  14. 14.
    Nawrocki W, Berthel K-H, Döhler T, Koch H (1988) Measurements of thermal noise by dc-SQUID. Cryogenics 28:394ADSCrossRefGoogle Scholar
  15. 15.
    Rietveld G et al (2000) Accurate measurement of small currents using a CCC with DC-SQUIS. Sens Actuators A Phys 85:54CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  1. 1.Faculty of Electronics and TelecommunicationsPoznan University of TechnologyPoznanPoland

Personalised recommendations