Abstract
Since their introduction to biomagnetism in 1970, SQUID magnetometers have been used worldwide to measure magnetic signals from the heart, brain, lungs, liver, nerves, skeletal muscle, stomach, intestines, eyes, and other organs. The majority of the effort in the field has been by university and national-laboratory researchers and by small, high-technology companies, and has been directed towards the development and promotion of this technology. While a SQUID clearly is an accepted and productive research instrument, the application of this technology in routine clinical diagnosis is only now beginning. The challenge is to identify applications for which SQUIDs are ideally suited and there is minimal competition from other technologies. The introduction of high-temperature superconductor (HTS) SQUIDs has led to a resurgence, for example, in measurements of the magnetocardiogram by physicists and new searches for applications. Similar trends are evident in the use of SQUIDs for the nondestructive evaluation (NDE) of aircraft and other structural systems and materials: most of the effort is directed towards instrumentation development and demonstrations in simple systems. Instruments suitable for specific commercial applications are just now being prototyped, and there is a new generation of HTS SQUIDs for NDE. This chapter presents an overview of SQUID magnetometers for biomagnetism and NDE, reviews a number of pertinent applications of SQUIDs, and discusses the criteria for successful application.
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References
Cohen, D., Edelsack, E.A., and Zimmerman, J.E. (1970) Magnetocardiograms taken inside a shielded room with a superconducting point-contact magnetometer, Appl. Phys. Lett. 16 (7), 278–280.
Weinstock, H. and Nisenoff, M. (1985) Non-destructive evaluation of metallic structures using a SQUID gradiometer, in H.D. Hahlbohm and H. Lübbig (eds.), SQUID ‘85, Proc. 3rd International Conference on Superconducting Quantum Devices, de Gruyter, Berlin, pp. 843–847.
Wikswo, Jr., J.P. (1983) Theoretical aspects of the ECG-MCG relationship, in S.J. Williamson, G.-L. Romani, L. Kaufman, and I. Modena (eds.), Biomagnetism, An Interdisciplinary Approach, Plenum Press, New York, pp. 311–326.
Donaldson, G.B. (1980) SQUIDs for everything else, in H. Weinstock and M. Nisenoff (eds.), Superconducting Electronics, Springer-Verlag, New York, pp. 175–207.
Wikswo, Jr., J.P. (1990) Biomagnetic sources and their models, in S.J. Williamson, M. Hoke, G. Stroink, and M. Kotani (eds.), Advances in Biomagnetism, Plenum Press, New York, pp. 1–18.
Weinstock, H. (1991) A review of SQUID magnetometry applied to nondestructive evaluation, IEEE Trans. Mag. 27 (2), 3231–3236.
Jenks, W.G., Sadeghi, S.S.H., and Wikswo, Jr., J.P. (1997) A review of SQUID magnetometers for non-destructive testing, J. Phys. D 30(3), 293–323.
Clarke, J. (1980) Principles and applications of SQUIDs, Proc. IEEE 77, 1208–1223.
Fagaly, R.L. (1990) Neuromagnetic instrumentation, in S. Sato (ed.), Advances in Neurology, Raven Press, New York, vol. 54, pp. 11–32.
Wikswo, Jr., J.P. (1996) High-resolution magnetic imaging: Cellular action currents and other applications, in H. Weinstock (ed.), SQUID Sensors: Fundamentals, Fabrication and Applications, Kluwer Academic Publishers, Netherlands, pp. 307–360.
Wikswo, Jr., J.P. (1996) The magnetic inverse problem for NDE, in H. Weinstock (ed.), SQUID Sensors: Fundamentals, Fabrication and Applications, Kluwer Academic Publishers, Netherlands, pp. 629–695.
Andrä, W. and Nowak, H. (1998) Magnetism in Medicine: A handbook, Wiley-VCH, New York.
Kirtley, J.R. and Wikswo, Jr., J.P. (1999) Scanning SQUID microscopy, Annu. Rev. Mater. Sci. 29, 117–148.
Lounasmaa, O.V. (1996) Medical applications of SQUIDs in neuro-and cardiomagnetism, Physica Scripta T66, 70–79.
Gulrajani, R.M. (1998) Bioelectricity and Biomagnetism,.John Wiley, New York.
Wikswo, Jr., J.P. (1995) SQUID magnetometers for biomagnetism and nondestructive testing: Important questions and initial answers, IEEE Trans. Applied Supercond. 5 (2), 74–120.
Cohen, D. (1972) Magnetoencephalography: Detection of the brain’s electrical activity with a superconducting magnetometer, Science 175, 664–666.
Okada, Y.C. (1983) Neurogenesis of evoked magnetic fields, in S.J. Williamson, G: L. Romani, L. Kaufman, and I. Modena (eds.), Biomagnetism, An Interdisciplinary Approach, Plenum Press, New York, pp. 399–408.
Vrba, J., Angus, V., Betts, K., Burbank, M.B., Cheung, T., Fife, A.A., Haid, G., Kubik, P.R., Lee, S., Ludwig, W., McCubbin, J., McKay, J., McKenzie, D., Robinson, S.E., Smith, M., Spear, P., Taylor, B., Tillptson, M., Cheyne, D., and Weinberg, H. (1996) 143 channel whole-cortex MEG system, Proc. 10th Inter. Conf. on Bio-magnetism,Sante Fe, p. 346.
Zeng, X.H., Soltner, H., Selbig, D., Bode, M., Bick, M., Ruders, F., Schubert, J., Zander, W., Banzet, M., Zhang, Y., Bousack, H., and Braginski, A.I. (1998) A high-temperature rf SQUID system for magnetocardiography, Measurement Science and Technology 9, 1600–1608.
Drung, D. (1995) The PTB 83-SQUID system for biomagnetic applications in a clinic, IEEE Trans. Applied Supercond. 5 (3), 1051–8223.
Fischer, R. (1998) Liver iron susceptometry, in W. Andrä and H. Nowak (eds.), Magnetism in Medicine: A handbook, Wiley-VCH, New York, pp. 286–301.
Kalliomaki, P.-L., Korhonen, O., Vaaranen, V., Kalliomaki, K., and Koponen, M. (1978), Lung Retention and Clearance of Shipyard Arc Welders, Internat. Arch. Occupational and Environmental Health 42 83–90.
Kötitz, R., Fannin, P.C., and Trahms, L. (1995) Time domain study of Brownian and Néel relaxation in ferrofluids, J. Magnetism and Magnetic Materials 149, 42–46.
Kötitz, R., Weitschies, W., Trahms, L., and Semmler, W. (1999) Investigation of Brownian and Néel relaxation in magnetic fields, J. Magnetism and Magnetic Materials 201, 102–104.
Kötitz, R., Weitschies, W., Trahms, L, Brewer, W., and Semmler, W. (1999) Determination of the binding reaction between avidin and biotin by relaxation measurements of magnetic nanoparticles, J. Magnetism and Magnetic Materials 194 (1–3), 62–68.
Ugelstad, J., Prestvik, W.S., Stenstad, P., Kilaas, L., and Kvalheim, G. (1998) Selective cell separation with monosized magnetizable polymer beads, in W. Andrä and H. Nowak (eds.), Magnetism in Medicine: A handbook, Wiley-VCH, New York, pp. 471–488.
Wikswo, Jr., J.P., Ma, Y.P., Sepulveda, N.G., Tan, S., Thomas, I.M., and Lauder, A. (1993) Magnetic susceptibility imaging for nondestructive evaluation, IEEE Trans. Applied Supercond. 3 (1), 1995–2002.
Roth, B.J., Sepulveda, N.G., and Wikswo, Jr.,,J.P. (1989) Using a magnetometer to image a two-dimensional current distribution, J. Appl. Phys. 65, 361–372.
Fagaly, R.L. (1989) SQUID detection of electronic circuits, IEEE Trans. Mag. 25, 1204–1218.
Zhuravlev, Y.E., Bakharev, A.A., Matlashov, A.N., Slobodchikov, V.Y., Velt, I.D., Nikulin, S.L., and Kalashnikov, R.V. (1992) Application of do-SQUID magnetometers for nondestructive testing of multilayer electronic cards, in H. Koch and H. Lübbig (eds.), Superconducting Devices and Their Applications, Springer-Verlag, Berlin, vol. 64, pp. 581–583.
Tan, S., Ma, Y.P., Thomas, I.M., and Wikswo, Jr., J.P. (1993) High resolution SQUID imaging of current and magnetization distributions IEEE Trans. Applied Supercond. 3(1) 1945–1948.
Thomas, I.M., Moyer, T.C., and Wikswo, Jr., J.P. (1992) High resolution magnetic susceptibility imaging of geological thin sections: Pilot study of a pyroclastic sample from the Bishop tuff, Geophys. Res. Lett. 19 (21), 2139–2142.
Kirschvink, J.L. (1997) Magnetoreception: Homing in on vertebrates, Nature 390 (6658), 339–340.
Walker, M.M., Diebel, C.E., Haugh, C.V., Pankhurst, P.M., Montgomery, J.C., and Green, C.R. (1997) Structure and function of the vertebrate magnetic sense, Nature 390 (6658), 371–376.
Thomas, I.M., Ma, Y.P., and Wikswo, Jr., J.P. (1993) SQUID NDE: Detection of surface flaws by magnetic decoration, IEEE Trans. Applied Supercond. 3(1), 19491952.
Weinstock, H., Tralshawala, N., and Claycomb, J.R. (1999) Defect detection in wire manufacturing, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 18B, 2265–2277.
Ma, Y.P. and Wikswo, Jr., J.P. (1992) Detection of a deep flaw inside a conductor using a SQUID magnetometer, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 11A, pp. 1153–1159.
Ma, Y.P. and Wikswo, Jr., J.P. (1993) Imaging subsurface defects using SQUID magnetometers, in D.O. Thompson and D E Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 12A, pp. 1137–1143.
Hurley, D.C., Ma, Y.P., Tan, S., and Wikswo, Jr., J.P. (1993) Imaging of small defects in nonmagnetic tubing using a SQUID magnetometer, Res. Nondestr. Eval. 5, 1–29.
Wikswo, Jr., J.P., Ma, Y.P., Sepulveda, N.G., Staton, D.J., Tan, S., and Thomas, I.M. (1993) Superconducting magnetometry: A possible technique for aircraft NDE, in M.T. Valley, N.K. Grande, and A.S. Kobayashi (eds.), Nondestructive Inspection of Aging Aircraft, SPIE Proceedings, vol. 2001, pp. 164–190.
Wikswo, Jr., J.P. (1997) SQUID magnetometers for studying corrosion and corrosion protection in aircraft aluminum, NAGE International, Paper No. 293, pp. 1–17.
Ma, Y.P. and Wikswo, Jr., J.P. (1993) Detection of subsurface flaws using SQUID eddy current technique, in M.T. Valley, N.K. Grande, and A.S. Kobayashi (eds.), Nondestructive Inspection of Aging Aircraft, SPIE Proceedings, vol. 2001, pp. 191199.
Podney, W. (1994) A superconductive electromagnetic microscope for eddy current evaluation of materials, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 13B, pp. 1947–1954.
Ma, Y.P. and Wikswo, Jr., J.P. (1994) SQUID eddy current techniques for detection of second layer flaws, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 13A, pp. 303–309.
Banchet, J., Jouglar, J., Vuillermoz, P.-L., Waltz, P., and Weinstock, H. (1995) Evaluation of stress in steel via SQUID magnetometry, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 14B, pp. 1675–1682.
Thomas, I.M., Ma, Y.P., Tan, S., and Wikswo, Jr., J.P. (1993) Spatial resolution and sensitivity of magnetic susceptibility imaging, IEEE Trans. Applied Supercond. 3 (1), 1937–1940.
Wikswo, Jr., J.P. and van Egeraat, J.M. (1991) Cellular magnetic fields: Fundamental and applied measurements on nerve axons, peripheral nerve bundles, and skeletal muscle, J. Clin. Neurophysiol. 8 (2), 170–188.
Deeter, M.N., Rose, A.H., and Day, G.W. (1990) Iron-garnet magnetic field sensors with 100 pT/Hz1/2 noise-equivalent field, Proc. 7th Int. Conf. Optical Fiber Sensors, Sydney.
Deeter, M.N., Rose, A.H., and Day, G.W. (1991) Sensitivity limits to ferromagnetic Faraday effect magnetic field sensors, J. Appl. Phys. 70 (10), 6407–6409.
Deeter, M.N., Day, G.W., Beahn, T.J., and Manheimer, M. (1993) Magneto-optic field sensor with 1.4 pT/Hz1/2 minimum detectable field at 1 kHz, Electron. Lett. 29, 993–994.
Smith, N., Jeffers, F., and Freeman, J. (1991) A high-sensitivity magnetoresistive magnetometer, J. Appl. Phys. 69 (8), 5082–5084.
Thompson, C.A., Cross, R.W., and Kos, A.B. (1994) Micromagnetic scanning microprobe system, Rev. Sci. Instrum. 65 (2), 383–389.
Mahendiran, R. and Raychaudhuri, A.K. (1995) Low temperature linear magnetic field sensor based on magnetoresistance of the perovskite oxide La-Sr-Co-O, Rev. Sci. Instrum. 66, 3071–3072.
Yamamoto, S. and Schultz, S. (1996) Scanning magnetoresistance microscopy, Appl. Phys. Lett. 69, 3263–3265.
Schwarzacher, S. and Lashmore, D.S. (1996) Giant magnetoresistance in electrode-posited films, IEEE Trans. Mag. 32 (4), 3133–3153.
Non-Volatile Electronics, Inc., Eden Prairie, MN.
Jenks, W.G, Thomas, I.M., and Wikswo, Jr., J.P. (1997) SQUIDs, in G.L. Trigg, E.S. Vera, and W. Greulich (eds.), Encyclopedia of Applied Physics, VCH Publishers, Inc., New York, vol. 19, pp. 457–468.
Zimmerman, J.E. and Silver, A.H. (1964) Quantum effects in type II superconductors, Phys. Lett. 10 (1), 47–48.
Jaklevic, R.C., Lambe, J., Mercereau, J.E., and Silver, A.H. (1965) Macroscopic quantum interference in superconductors, Physical Review 140 (5A), A1628 - A1637.
See chapter by J. Clarke, this volume.
Zhang, Y., Krüger, U., Kutzner, R., Wördenweber, R., Schubert, J., Zander, W., Strupp, M., Sodtke, E., and Braginski, A.I. (1994) Single-layer YBa2Cu3O7 rf SQUID magnetometers with direct-coupled pickup coils and flip-chip flux transformers, Appl. Phys. Lett. 65, 3380–3382.
Ludwig, F., Dantsker, E., Kleiner, R., Koelle, D., Clarke, J., Knappe, S., Drung, D., Koch, H., Alford, N., and Button, T.W. (1995) Integrated high-Tc multiloop magnetometer, Appl. Phys. Lett. 66, 1418–1420.
Burghoff, M., Trahms, L., Zhang, Y., Bousack, H., and Borgmann, J. (1996) Diagnostic application of high-temperature SQUIDS, J. Clin. Engr. 21 (1), 62–66.
Cochran, A., Macfarlane, J.C., Morgan, L.N.C., Kuznik, J., Weston, R., Hao, L., Bowman, R.M., and Donaldson, G.B. (1994) Using a 77 K SQUID to measure magnetic fields for NDE, IEEE Trans. Applied Supercond. 4 (3), 128–135.
Morgan, L.N.C., Carr, C., Cochran, A., McKirdy, D.McA., and Donaldson, G.B. (1995) Electromagnetic nondestructive evaluation with simple HTS SQUIDS: Measurements and modelling, IEEE Trans. Applied Supercond. 5 (2), 3127–3130.
Grüneklee, M., Krause, H.-J., Hohmann, R., Maus, M., Lomparski, D., Banzet, M., Schubert, J., Zander, Y., Zhang, Y., Wolf, W., Bousack, H., and Braginski, A.I. (1998) HTS SQUID system for eddy current testing of airplane wheels and rivets, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 17A, pp. 1075–1082.
Chatraphorn, S., Fleet, E.F., and Wellstood, F.C. (1999) High-T, scanning SQUID microscopy: Imaging integrated circuits beyond the standard near-field limit, Bull. Am. Phys. Soc. 44(1) Part II, 1554 (Abstract).
Fleet, E.F., Chatraphorn, S., and Wellstood, F.C. (1999) HTS SQUID microscopy of eddy currents, Bull. Am. Phys. Soc. 44(1) Part II, 1554 (Abstract).
http://www.neocera.com/html-files/magma/magma.htm
Drung, D. Crocoll, E., Herwig, R., Neuhas, M., and Jutzi, W. (1989) Measured performance parameters of gradiometers with digital output, IEEE Trans. Mag. 25 1034–1037.
Vrba, J., Betts, K., Burbank, M., Cheung, T., Cheyne, D., and Fife, A.A. (1995) Whole cortex 64 channel system for shielded and unshielded environments, in L. Deecke, C. Baumgartner, G. Stroink, and S.J. Williamson (eds.), Proc. of the 9th Inter. Conf. on Biomagnetism, Vienna, pp. 521–525.
Zimmermann, E., Brandenburg, G., Clemens, U., Rongen, H., Hailing, H., Krause, H.-J., Hohmann, R., Soltner, H., Lomparski, D., Grüneklee, M., Husemann, K.-D., Bousack, H., Braginski, A.I. (1997) HTS-SQUID magnetometer with digital feedback control for NDE applications, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 16B, pp. 2129–2135.
Fujimaki, N., Tamura, H., Suzuki, H., Imamura, T., Hasuo, S., and Shibatomi, A. (1988) A single-chip SQUID magnetometer, IEEE Trans. Elect. Dev. 35, 2412–2417.
Radparvar, M. (1994) A wide dynamic range single-chip SQUID magnetometer, IEEE Trans. Applied Supercond. 4, 87–91.
Radparvar, M. and Rylov, S. (1995) A single-chip SQUID magnetometer with high sensitivity input, IEEE Trans. Applied Supercond. 5, 2142–2145.
Radparvar, M. and Rylov, S. (1997) High sensitivity digital SQUID magnetometers, IEEE Trans. Applied Supercond. 7, 3682–3685.
See chapter by K.K. Likharev, this volume.
Wikswo, Jr., J.P. (1995) Closing Comments: Recent developments in 5 K cryocoolers–An outsider’s view, 5 K Cryocooler Workshop: Present Status, Future Prospects and Market Potential for 4–5 K Cryocoolers Proceedings, Hypres, Inc., Elmsford, NY, pp. 58–66.
Klemic, G.A., Buchanan, D.S., Cycoqicz, Y.M., and Williamson, S.J. (1990) Sequential spatially distributed activity of the human brain detected magnetically by CryoSQUIDs, in S.J. Williamson, M. Hoke, G. Stroink, and M. Kotani (eds.), Advances in Biomagnetism, Plenum Press, New York, pp. 685–688.
Buchanan, D.S., Paulson, D., and Williamson, S.J. (1988) Instrumentation for clinical applications of neuromagnetism, in R.W. Fast (ed.), Advances in Cryogenic Engineering, Plenum Press, New York, vol. 33, pp. 97–106.
Podney, W.N. (1993) Performance measurements of a superconductive microprobe for eddy current evaluation of subsurface flaws, IEEE Trans. Applied Supercond. 3 (1), 1914–1917.
Hohmann, R., Lienerth, C., Zhang, Y., Bousack, H., Thummes, G., and Heiden, C. (in press, 1999) Comparison of low noise cooling performance of a Joule-Thompson cooler and a pulse-tube cooler using a HT SQUID, IEEE Trans. Applied Supercond.
Little, W.A. (1984) Microminiature refrigeration, Rev. Sci. Instrum. 55, 661–680.
Little, W.A. (1990) Advances in Joule-Thomson cooling, Adv. Cryogenic Engr. 35, 1305–1314.
Kajiwara, G., Harakawa, K., and Ogata, H. (1996) High-performance magnetically shielded room, IEEE Trans. Mag. 32, 2582–2585.
Drung, D. (1992) Investigation of a double-loop do-SQUID magnetometer with additional positive feedback (for biomagnetic applications), in H. Koch and H. Lübbig (eds.), Superconducting Devices and Their Applications, Springer-Verlag, Berlin, vol. 64, pp. 351–356.
Trahms, Lutz, PTB, personal communication.
Romani, G.L., Williamson, S.J., and Kaufman, L. (1982) Biomagnetic instrumentation, Rev. Sci. Instrum. 53, 1815–1845.
Wikswo, Jr., J.P. (1978) Optimization of SQUID differential magnetometers, AIP Conf. Proc. 44, 145–149.
Cochran, A., Donaldson, G.B., Evanson, S., and Bain, R.J.P. (1993) First-generation SQUID-based nondestructive testing system, IEE Proceedings-A 140 (2), 113–120.
Zimmerman, J.E. (1977) SQUID instruments and shielding for low-level magnetic measurements, J. Appl. Phys. 48 (2), 702–710.
Tsukada, K. and Haruta, Y. (1995) Multichannel SQUID system detecting tangential components of the cardiac magnetic field, Rev. Sci. Instrum. 66 (10), 5085–5091.
Sepulveda, N.G. and Wikswo, Jr., J.P. Differential operators and their applications to magnetic measurements using SQUID magnetometers, unpublished.
http.//www.neuromag.com
Vrba, J., Taylor, B., Cheung, T., Fife, A.A., Haid, G., Kubik, P.R., Lee, S., McCubbin, J., and Burbank, M.B. (1995) Noise cancellation by a whole-cortex SQUID MEG system, IEEE Trans. Applied Supercond. 5 (2), 2118–2123.
Robinson, Steve, personal communication.
Drung, D. (1992) Performance of an electronic gradiometer, in H. Koch and H. Lübbig (eds.), Superconducting Devices and their Applications, Springer-Verlag, New York, vol. 64, pp. 542–546.
Tavrin, Y., Zhang, Y., Mück, M., Braginski, A.I., and Heiden, C. (1993) YBa2Cu3O7 thin film SQUID gradiometer for biomagnetic measurements, Appl. Phys. Lett. 62 (15), 1824–1826.
Tavrin, Y., Zhang, Y., Wolf, W., and Braginski, A.I. (1994) A second-order SQUID gradiometer operating at 77 K, Supercond. Sci. Technol. 7, 265–268.
Koch, R.H. (1992) Gradiometer having a magnetometer which cancels background magnetic field from other magnetometers, U.S. Patent 5, 122–744.
Koch, R.H., Rozen, J.R., Sun, J.Z., and Gallagher, W.J. (1993) Three SQUID gradiometer, Appl. Phys. Lett. 63 (3), 403–405.
Ter Brake, H.J.M., Flokstra, J., Jaszczuk, W., Stammis, R., van Ancum, G.K., Martinez, A., and Rogalla, H. (1991) 19 UT 19-channel dc SQUID based neuro-magnetometer, Clin. Phys. and Physiol. Meas. 12(Suppl. B) 45–50.
Matlashov, A.N., Slobodchikov, V.Y., Bakharev, A.A., Zhuravlev, Y.E., and Bondarenko, N. (1995) Biomagnetic multichannel system built with 19 cryogenic probes, in L. Deecke, C. Baumgartner, G. Stroink, and S.J. Williamson (eds.), Proc. 9th Inter. Conf. on Biomagnetism, Vienna, pp. 493–496.
Matlashov, A., Zhuravlev, Y., Slobodchikov, V., Bondarenko, N., Bakharev, A., and Rassi, D. (1995) Miniature dc SQUID magnetometers for clinical use, in L. Deecke, C. Baumgartner, G. Stroink, and S.J. Williamson (eds.), Proc. 9th Inter. Conf. on Biomagnetism, Vienna, pp. 526–529.
Dössel, O., David, B., Fuchs, M., Krüger, J., Lüdeke, K.-M., and Wischmann, H.-A. (1993) A 31-channel SQUID system for biomagnetic imaging, Applied Supercond. 1 (10–12), 1813–1825.
Yamasaki, S., Morooka, T., Matsuda, N., Kawai, J., Mizutani, N., Tsukada, K., Uehara, G., and Kado, H. (1993) Design and fabrication of multichannel dc SQUIDs for biomagnetic applications, IEEE Trans. Applied Supercond. 3, 1887–1889.
Romani, Gian Luca, personal communication.
http://www.ctf.com
Hirschkoff, Gene, Biomagnetic technologies, Inc., personal communication.
Ueda, M., Kandori, A., Ogata, H., Takada, Y., Komuro, T., Kazami, K., and Ito, T. (1995) Development of a biomagnetic measurement system for brain research, IEEE Trans. Applied Supercond. 5 (2), 2465–2469.
Kado, H., Higuchi, M., Shimogawara, Y., Haruta, Y., Adachi, J., Kawai, H., and Uehara, G. (in press) Magnetoencephalogram systems developed at KIT, IEEE Trans. Applied Supercond.
Tan, S., Roth, B.J., and Wikswo, Jr., J.P. (1990) The magnetic field of cortical current sources: The application of a spatial filtering model to the forward and inverse problems, Electroenceph. clin. Neurophysiol. 76, 73–85.
Matlashov, A., Bakharev, A., Zhuravlev, Y., and Slobdobchikov, V. (1992) Biomagnetic multi-channel system consisting of several self-contained autonomous small-size units, in H. Koch and H. Lübbig (eds.), Superconducting Devices and Their Applications, Springer-Verlag, Berlin, vol. 6, pp. 511–516.
Matlashov, A.N. (1993) New approaches to biomagnetic measurements and signal processing, International Journal of Applied Electromagnetics in Materials, Elsevier, Amsterdam, vol. 4, pp. 185–188.
Wikswo, Jr., J.P. (1988) High-resolution measurements of biomagnetic fields, in R.W. Fast (ed.), Advances in Cryogenic Engineering, vol. 33, pp. 107–116.
Cochran, A. and Donaldson, G.B. (1992) Improved techniques for structural NDT using SQUIDs, in H. Koch and Lübbig (eds.), Superconducting Devices and Their Applications, Springer-Verlag, Berlin, vol. 64, pp. 576–581.
Hibbs, A.D., Sager, R.E., Cox, D.W., Aukerman, T.H., Sage, T.A., and Landis, R.S. (1992) A high-resolution magnetic imaging system based on a SQUID magnetometer, Rev. Sci. Instrum. 63 (7), 3652–3658.
Hibbs, A., Chung, R., and Pence, J.S. (1994) Corrosion measurements with a high resolution scanning magnetometer, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 13B, pp. 1955–1962.
Wikswo, Jr., J.P., van Egeraat, J.M., Ma, Y.P., Sepulveda, N.G., Staton, D.J., Tan, S., and Wijesinghe, R.S. (1990) Instrumentation and techniques for high-resolution magnetic imaging, in A.F. Gmitro, P.S. Idell, and I.J. LaHaie (eds.), Digital Image Synthesis and Inverse Optics, SPIE Proceedings, vol. 1351, pp. 438–470.
Ma, Y.P. and Wikswo, Jr., J.P. (1991) Magnetic shield for wide-bandwidth magnetic measurements for nondestructive testing and biomagnetism, Rev. Sci. Instrum. 62 (11), 2654–2661.
Abedi, A., Fellenstein, J.J., Lucas, A.J., and Wikswo, Jr., J.P. (in press) A SQUID magnetometer system for quantitative analysis and imaging of hidden corrosion activity in aircraft aluminum structures, Rev. Sci. Instrum.
Brenner, D., Williamson, S.J., and Kaufman, L. (1975) Visually evoked magnetic fields of the human brain, Science 190, 480–482.
Brenner, D., Lipton, J., Kaufman, L., and Williamson, S.J. (1978) Somatically evoked magnetic fields of the human brain, Science 199, 81–83.
Romani, G.L., Williamson, S.J., and Kaufman, L. (1982) Tonotopic organization of the human auditory cortex, Science 216, 1339–1340.
Maclin, E., Okada, Y.C., Kaufman, L., and Williamson, S.J. (1983) Retinotopic map on visual cortex for eccentrically placed patterns: First noninvasive measurement, Il Nuovo Cimento 2D, 410–419.
Schlitt, H.A., Heller, L., Aaron, R., Best, E., and Ranken, D.M. (1995) Evaluation of boundary element methods for the EEG forward problem: Effect of linear interpolation, IEEE Trans. Biomed. Eng. 42 (1), 52–58.
Schlitt, H.A., Heller, L., Best, E., Ranken, D.M., and Aaron, R. (1994) Effect of conductor geometry on source localization: Implications for epilepsy studies, in N. Tepley (ed.), NABMAG2 - Proceedings of the Second North American Biomagnetism Action Group Meeting, Henry Ford Hospital, Detroit, Michigan.
Maurer, Jr., C.R., Aboutanos, G.B., Dawant, B.M., Gadamsetty, S., Margolin, R.A., Maciunas, R.J., and Fitzpatrick, J.M. (1994) Effect of geometrical distortion correction in MR on image registration accuracy, in Medical Imaging VIII: Image Processing, SPIE Proceedings, vol. 2167, pp. 200–213.
Ebersole, J.S. (1991) EEG dipole modeling in complex partial epilepsy, Brain Topog. 4 (2), 113–123.
Cooper, R., Winter, A.L., Crow, H.J., and Walter, W.G. (1969) Comparison of subcortical, cortical, and scalp activity using chronically indwelling electrodes in man, Electroenceph. clin. Neurophysiol. 18, 217–228.
Mosher, J.C., Lewis, P.S., and Leahy, R.M. (1992) Multiple dipole modeling and localization from spatio-temporal MEG data, IEEE Trans. Biomed. Eng. 39 (6), 541–557.
Gorodnitsky, I.F., George, J.S., and Rao, B.D. (1995) Neuromagnetic source imaging with FOCUSS: A recursive weighted minimum norm algorithm, Electroencephal. clin. Neurophysiol. 95 (4), 231–251.
Gorodnitsky, I.F. and Rao, B.D. (1997) Sparse signal reconstruction from limited data using FOCUSS: A recursive weighted minimum norm algorithm, IEEE Trans. on Sig. Processing 45 (3), 600–616.
Robinson, S.E. and Vrba, J. (1999) Functional neuroimaging by synthetic aperture magnetometry (SAM), Proc. 11th Inter. Conf. on Biomagnetism, Sendai, Japan, pp. 302–305.
Ishii, R., Shinosaki, K., Ukai, S., Inouye, T., Ishihara, T., Yoshimine, T., Hirabuki, N., Asada, H., Kihara, T., Robinson, S.E., and Takeda, M. (1999) Medial prefrontal cortex generates frontal midline theta rhythm, NeuroReport 10 (4), 675–679.
Wang, J.-Z., Williamson, S.J., and Kaufman, L. (1995) Kinetic images of neuronal activity of the human brain based on the spatio-temporal MNLS inverse: A theoretical study, Brain Topog. 7 (3), 193–200.
Gençer, N.G. and Williamson, S.J. (1997) Magnetic source images of human brain functions, Behavior Res. Meth. Instrum. and Comp. 29 (1), 78–83.
Wikswo, Jr., J.P., Crum, D.B., Henry, W.P., Ma, Y.P., Sepulveda, N.G., and Sta-ton, D.J. (1993) An improved method for magnetic identification and localization of cracks in conductors, J. Nondestr. Eval. 12 (2), 109–119.
Ma, Y.P. and Wikswo, Jr., J.P. The magnetic field produced by an elliptical flaw in a current carrying plate, in preparation.
Ma, Y.P. and Wikswo, Jr., J.P. Magnetic field of a subsurface spherical flaw inside a current-carrying conductor, in preparation.
Ewing, A.P., Hall Barbosa, C., Cruse, T.A., Bruno, A.C., and Wikswo, Jr., J.P. (1998) Boundary integral equations for modeling arbitrary flaw geometries in electric current injection NDE, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 17A, pp. 1011–1015.
Hurley, D.C., Ma, Y.P., Tan, S., and Wikswo, Jr., J.P. (1993) A comparison of SQUID imaging techniques for small defects in nonmagnetic tubes, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 12A, pp. 633–640.
Cruse, T.A., Ewing, A.P., and Wikswo, Jr., J.P. (1999) Green’s function formulation of Laplace’s equation for electromagnetic crack detection, Computational Mechanics 23 (5/6), 420–429.
Ewing, A.P., Cruse, T.A., and Wikswo, Jr., J.P. (1998) A SQUID NDE measurement model using BEM, in D.O. Thompson and D E Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 17A, pp. 1083–1090.
Ewing, A.P., Cruse, T.A., and Wikswo, Jr.,.J.P. A boundary element measurement model for SQUID nondestructive evaluation: An experimental comparison, unpublished.
Ewing, A.P., Cruse, T.A., and Wikswo, Jr.,.J.P. Using a SQUID measurement model for sensitivity analysis to determine probability of detection, unpublished.
Lü, Z.-L., Williamson, S.J., and Kaufman, L. (1992) Human auditory primary and association cortex having differing lifetimes for activation traces, Brain Res. 527, 236–241.
Kaufman, L., Curtis, S., Wang, J.-Z., and Williamson, S.J. (1992) Changes in cortical activity when subjects scan memory for tones, Electroenceph. clin. Neurophysiol. 82, 266–284.
Hari, R., Salmelin, R., Tissari, S.O., Kajola, M., and Virsu, V. (1994) Visual stability during picture naming, Nature 367, 121–122.
Salmelin, R., Hari, R., Lounasmaa, O.V., and Sams, M. (1994) Dynamics of brain activation during picture naming, Nature 368, 463–465.
Yang, T.T., Gallen, C.C., Schwartz, B.J., and Bloom, F.E. (1993) Noninvasive somatosensory homunculus mapping in humans by using a large-array biomagnetometer, Proc. Natl. Acad. Sci. USA 90, 3098–3102.
Yang, T.T., Gallen, C., Schwartz, B., Bloom, F.E., Ramachandran, V.S., and Cobb, S. (1994) Sensory maps in the human brain, Nature 368, 592–593.
Romani, G.L., Del Gratta, C., Pizzella, V. (1996) Neuromagnetism and its clinical applications, in H. Weinstock (ed.), SQUID Sensors: Fundamentals, Fabrication and Applications, Kluwer Academic Publishers, Netherlands, pp. 445–490.
Wakai, R.T., Wang, M., and Martin, C.B. (1994) Spatiotemporal properties of the fetal magnetocardiogram, Am. J. Obstet. Gynecol. 170 (3), 770–776.
Zhuravlev, Y.E., Rassi, D., and Emery, S.J. (in press, 1999) Clinical assessment of fetal magnetocardiography, IEEE Trans. Applied Supercond.
Lowery, C., Robinson, S., Eswaran, H., Vrba, J., Haid, V., and Cheung, T. (1999) Detection of the transient and steady-state auditory evoked responses in the human fetus, Proc. 11th Inter. Conf. on Biomagnetism, Sendai, Japan, pp. 963–966.
Burghoff, M., Curio, G., Haberkorn, W., Mackert, B.-M., and Trahms, L. (1994) Quellenbildgebung aus biomagnetischen Feldern peripherer Nerven. Proceedings of the Congress, Biomedizinische Technik.
Mackert, B.-M., Curio, G., Burghoff, M., and Marx, P. (1997) Mapping of tibial nerve evoked magnetic fields over the lower spine, Electroenceph. clin. Neurophysiol. 104 (4), 322–327.
Mackert, B.-M., Curio, G., Burghoff, M., Trahms, L., and Marx, P. (1998) Magnetoneurographic 3D-localization of conduction blocks in patients with unilateral S1 root compression, Electroenceph. clin. Neurophysiol. 109, 315–320.
Golzarian, J., Staton, D.J., Wikswo, Jr., J.P., Friedman, R.N., and Richards, W.O. (1994) Diagnosing intestinal ischemia using a noncontact superconducting quantum interference device, Am. J. Surgery 167, 586–592.
Modena, I., Ricci, G.B., Barbanera, S., Leoni, R., Romani, G.L., and Carelli, P. (1982) Biomagnetic measurements of spontaneous brain activity in the brain following repetitive sensory stimulation, Electroenceph. clin. Neurophysiol. 54, 622–628.
Barth, D.S., Sutherling, W., Engel, Jr., J., and Beatty, J. (1982) Neuromagnetic localization of epileptiform spike activity in the human brain, Science 218, 891–894.
Hari, R., Ahonen, A., Forss, N., Granström, M.-L., Hämäläinen, M., Kajola, M., Knuutila, J., Lounasmaa, O.V., Makela, J.P., and Paetau, R., Salmelin, R., and Simola, J. (1993) Parietal epileptic mirror focus detected with a whole-head neuro-magnetometer, NeuroReport 5 (1), 45–48.
Orrison, W.W. and Lewine, J.D. (1993) Magnetic source imaging in neurosurgical practice, Prospectives in Neurosurgical Surgery 4(2), 141–147.
Benzel, E.C., Lewine, J.D., Bucholz, R.D., and Orrison, W.W. (1993) Magnetic source imaging: A review of the Magnes system of Biomagnetics Technology Incorporated, Neurosurg. 33, 252–259.
Lewine, J.D. and Orrison, W.W. (1995) Magnetoencephalography amd Magnetic Source Imaging, in W.W. Orrison, J.D. Lewine, J.A. Sanders, and M. Hartshorne (eds.), Functional Brain Imaging, Mosby Yearbooks, St. Louis, pp. 369–416.
Barkley, G.L., Tepley, N., Nagel-Leiby, S., Moran, J.E., Simkins, R.T., and Welch, K.M.A. (1990) Magnetoencephalographic studies of migraine, Headache J. 30 (7), 428–434.
Barry, W.H., Harrison, D.C., Fairbank, W.M., Lehrman, K., Malmivuo, J.A.V., and Wikswo, Jr., J.P. (1977) Measurement of the human magnetic heart vector, Science 198, 1159–1162.
Wikswo, Jr., J.P. and Barach, J.P. (1982) Possible sources of new information in the magnetocardiogram, J. Theoretical Biol. 95, 721–729.
Roth, B.J. and Wikswo, Jr., J.P. (1986) Electrically-silent magnetic fields, Biophys. J. 50, 739–745.
Lant, J., Stroink, G., Ten Voorde, B., Horachek, M., and Montague, T.J. (1990) Complementary nature of electrocardiographic and magnetocardiographic data in patients with ischemic heart disease, J. Electrocardiology 23, 315–322.
Stroink, G., Lant, J., Elliot, P., and Gardner, M. (1992) Magnetic field and body surface potential mapping of patients with ventricular tachycardia, in M. Hoke, S.N. Erne, Y.C. Okada, and G.-L. Romani (eds.), Biomagnetism: Clinical Aspects, Elsevier, Amsterdam, pp. 471–475.
Malmivuo, J. and Plonsey, R. (1994) Bioelectromagnetism - Principles and Applications of Bioelectric and Biomagnetic Fields, Oxford University Press, New York.
Stroink, G., Moshage, W., and Achenbach, S. (1998) Cardiomagnetism, in W. Andrä and H. Nowak (eds.), Magnetism in Medicine: A handbook, Wiley-VCH, New York, pp. 163–189.
Stroink, G. (1999) New developments in magnetocardiology, Proc. 11th Inter. Conf. on Biomagnetism, Sendai, Japan, pp. 982–985.
Gornick, C.C., Adler, S.W., Pederson, B., Hauck, J., Budd, J., and Schweitzer, J. (1999) Validation of a new noncontact catheter system for electroanatomic mapping of left ventricular endocardium, Circulation 99 (6), 829–835.
Schilling, R.J., Peters, N.S., and Wyn Davies, D. (1998) Simultaneous endocardial mapping in the human left ventricle using a noncontact catheter, Circulation 98 (9), 887–898.
Van Leeuwen, P., Hailer, B., and Wehr, M. (1996) Spatial distribution of QT intervals: An alternative approach to QT dispersion, Pace 19(1) Part II, 18941899.
Brockmeier, K., Schmitz, L., Chavez, J.J.B., Burghoff, M., Koch, H., Zimmerman, R., and Trahms, L. (1997) Magnetocardiography and 32-lead potential mapping: Repolarization in normal subjects during pharmacologically induced stress, J. Cardiovasc. Electrophysiol. 8, 615–626.
Moshage, W. and Achenbach, S. (1997) Clinically significant differences between ECG and MCG, Biomedizinische Technik 42 (1), 25–28.
Hailer, B., Van Leeuwen, Lange, S., and Wehr, M. (1997) Magnetocardiography in risk stratification after myocardial infarction using spatial dispersion of the QT interval, Biomedizinische Technik 42 (1), 136–139.
Van Leeuwen, P., Hailer, B., and Wehr, M. (1997) Changes in current dipole parameters in patients with coronary artery disease with and without myocardial infarction, Biomedizinische Technik 42 (1), 132–135.
Van Leeuwen, Hailer, B., Donker, D., Lange, S., and Wehr, M. (1998) Noninvasive diagnosis of coronary artery disease at rest on the basis of multichannel magneto-cardiography, Pace 21 Part II, 908 (Abstract).
Hailer, B., Van Leeuwen, P., Pilath, M., Lange, S., Grönemeyer, Wehr, M., and Anstalt, A.K. (1998) Changes in the spatial dispersion of QT interval in patients with coronary artery disease, Pace 21 Part II, 908 (Abstract).
Gessner, Ch., Endt, P., Burghoff, M., and Trahms, L. (1998) Vortex currents detected by stress MCG and fragmentation of ECG/MCG in VT patients, Proc. 43rd Seminar on High-Resolution Electrocardiography and Magnetocardiography, Warsaw, Poland.
Hailer, B., Van Leeuwen, P., Lange, S., Grönemeyer, and Wehr, M. (1998) Spatial dispersion of the magnetocardiographically determined QT interval and its components in the identification of patients at risk for arrhythmia after myocardial infarction, Annals Noninvas. Electrocardiol. 3 (4), 311–318.
Endt, P Hahlbohm, H.-D., Kreiseler, D., Oeff, M., Steinhoff, U., and Trahms, L. (1998) Fragmentation of the bandpass filtered QRS-complex of patients prone to malignant arrhythmia, Med. Biol. Eng. Comput. 36 723–728.
Drake, W.B., Bradshaw, L.A., Fish, F.A., Mellen, B.G., and Wikswo, Jr., J.P. (1998) Magnetocardiographic assessment of developmental changes in fetal cardiac intervals, Circulation 98 (17), I - 835 (Abstract).
Drake, W.B., Bradshaw, L.A., Mellen, B.G., Fish, F.A., and Wikswo, Jr.,.J.P. Evaluation of fetal intracardiac intervals using vector magnetocardiography, in prepara-tion.
Lowery, C., Robinson, S., Eswaran, H., Vrba, J., Haid, V., and Cheung, T. (1999) Detection of the transient and steady-state auditory evoked responses in the human fetus, Proc. 11th Inter. Conf. on Biomagnetism, Sendai, Japan, pp. 963–966.
Staton, D.J., Friedman, R.N., and Wikswo, Jr., J.P. (1993) High resolution SQUID imaging of octupolar currents in anisotropic cardiac tissue, IEEE Trans. Applied Supercond. 3 (1), 1934–1936.
Bradshaw, L.A., Ladipo, J.K., Haupt, C.D., Seidel, S.A., van Leeuwen, P., Wikswo, Jr., J.P., and Richards, W.O. (1998) Noninvasive measurement of gastric propagation using a multichannel SQUID magnetometer, Gastroenterology 114 (4 Part 2), G3003 (Abstract).
Richards, W.O., Bradshaw, L.A., Staton, D.J., Garrard, C.L., Liu, F., Buchanan, S., and Wikswo, Jr., J.P. (1996) Magnetoenterography (MENG): Noninvasive measurement of bioelectric activity in human small intestine, Digestive Diseases and Sciences 41 (12), 2293–2301.
Richards, W.O., Staton, D.J., Golzarian, J., Friedman, R.N., and Wikswo, Jr., J.P. (1995) Non-invasive SQUID magnetometer measurement of human gastric and small bowel electrical activity, in L. Deecke, C. Baumgartner, G. Stroink, and S.J. Williamson (eds.), Proc. 9th Inter. Conf. on Biomagnetism, Vienna, pp. 743–747.
Richards, W.O., Garrard, C.L., Allos, S.H., Bradshaw, L.A., Staton, D.J., and Wikswo, Jr., J.P. (1995) Noninvasive diagnosis of mesenteric ischemia using a SQUID magnetometer, Annals of Surgery 221 (6), 696–705.
Allos, S.H., Staton, D.J., Bradshaw, L.A., Halter, S., Wikswo, Jr., J.P., and Richards, W.O. (1997) Superconducting quantum interference device magnetometer for diagnosis of ischemia caused by mesenteric venous thrombosis, World J. Surg. 21, 173–178.
Bradshaw, L.A., Allos, S.H., Wikswo, Jr., J.P., and Richards, W.O. (1997) Correlation and comparison of magnetic and electric detection of small intestinal electrical activity, Am. J. Physiol. 272, G1159 - G1167.
Bradshaw, L.A., Ladipo, J.K., Staton, D.J., Wikswo, Jr., J.P., and Richards, W.O. (1999) The human vector magnetogastrogram and magnetoenterogram, IEEE Trans. Biomed. Eng. 46 (8), 959–970.
Weitschies, W., Kötitz, R., Cordini, D., and Trahms, L. (1997) High-resolution monitoring of the gastrointestinal transit of a magnetically marked capsule, J. Pharmaceutical Sci. 86 (11), 1218–1222.
Farrell, D.E., Allen, C.J., Arendt, P.N., Foltyn, S.R., Paulson, D.N., Fagaly, R.L., Brittenham, G.M. (1999) High-Tc SQUID susceptometry, Bull. Am. Phys. Soc. 444 (1/II), 1553.
Barth, D.S., Sutherling, W., and Beatty, J. (1984) Fast and slow magnetic phenomena in focal epileptic seizures, Science 226, 855–857.
Okada, Y.C., Wu, J., and Kyuhou, S.-I. (1997) Genesis of MEG signals in a mammalian CNS structure, Electroenceph. clin. Neurophysiol. 103, 474–485.
Wikswo, Jr., J.P., Friedman, R.N., Kilroy, A.W., van Egeraat, J.M., and Buchanan, D.S. (1990) Preliminary measurements with MicroSQUID, in S.J. Williamson, M. Hoke, G. Stroink, and M. Kotani (eds.), Advances in Biomagnetism, Plenum Press, New York, pp. 681–684.
Thomas, I.M., Freake, S.M., Swithenby, S.J., and Wikswo, Jr., J.P. (1993) A distributed quasi-static ionic current source in the 3–4 day old chicken embryo, Phys. Med. Biol. 38, 1311–1328.
Thomas, I.M. and Friedman, R.N. (1995) Study of macrophage activity in rat liver using intravenous superparamagnetic tracers, in L. Deecke, C. Baumgartner, G. Stroink, and S.J. Williamson (eds.), Proc. 9th Inter. Conf. on Biomagnetism, Vienna, pp. 809–813.
Goranson, U.G. and Miller, M. (1991) Aging jet transport structural evaluation programs, in S.N. Atluri, S.G. Sampath, and P. Tong (eds.), Structural Integrity of Aging Airplanes, Springer-Verlag, Berlin, pp. 131–140.
Bobo, S.N. (1990) The aging aircraft fleet: A challenge for nondestructive inspection, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 9B, pp. 2097–2109.
Ma, Y.P. and Wikswo, Jr., J.P. (1998) SQUID magnetometers for depth-selective, oriented eddy current imaging, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, vol. 17A, pp. 1067–1074.
Ma, Y.P., Ewing, A.P., and Wikswo, Jr., J.P. SQUID eddy current measurements using a sheet inducer, in preparation.
Ma, Y.P. and Wikswo, Jr., J.P. (1995) Techniques for depth-selective, low-frequency eddy current analysis for SQUID-based non-destructive testing, J. Nondestr. Eval. 14 (3), 149–167.
Ma, Y.P. and Wikswo, Jr., J.P. (1996) Depth-selective SQUID eddy current techniques for second layer flaw detection, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 15A, pp. 401–408.
Hall Barbosa, C., Bruno, A.C., Vellasco, M., Pacheco, M., Wikswo, Jr., J.P., Ewing, A.P., and Camerini, C.S. (in press) Automation of SQUID nondestructive evaluation of steel plates by neural networks, IEEE Trans. Applied Supercond.
Cochran, Sandy, University of Strathclyde, Glasgow, Scotland, personal communication.
Cochran, A., Donaldson, G.B., Morgan, L.N.C., Bowman, R.M., and Kirk, K.J. (1993) SQUIDs for NDT: The technology and its capabilities, British J. NDT 35, 173–182.
Otaka, M., Enomoto, K., Hayashi, M., Sakata, S., and Shimizu, S. (1994) Detection of fatigue damage in stainless steel using a SQUID sensor, in J.C. Spanner, Jr. (ed.), The American Society Mechanical Engineers, PVP-vol. 276, book no. G00844: Determining Material Characterization, pp. 113–117.
Sawade, G., Krause, 11.-J., Gampe, U. (1997) Non destructive examination of prestressed tendons by the magnetic stray field method, in M.T. Forde (ed.), Proceedings of the 7th International Conference on Structural Faults and Repair–97, Engineering Technic Press, Edinburgh, vol. I, pp. 401–406.
Bellingham, J.G., MacVicar, M.L.A., Nisenoff, M., and Searson, P.C. (1986) Detection of magnetic fields generated by electrochemical corrosion, J. Electrochem. Soc. 133, 1753–1754.
Bellingham, J.G., MacVicar, M.L.A., and Nisenoff, M. (1987) SQUID technology applied to the study of electrochemical corrosion, IEEE Trans. Mag. 23(2), 477479.
Jette, B.D. and MacVicar, M.L.A. (1991) SQUID magnetometry applied as a noninvasive electroanalytic chemical technique, IEEE Trans. Mag. 27, 3025–3028.
Misra, M., Lordi, S., and MacVicar, M.L.A. (1991) Applications of SQUID magnetometry to electrochemical systems, IEEE Trans. Mag. 27, 3245–3248.
Hibbs, A.D., Sager, R.E., Cox, D.W., Aukerman, T.H., Sage, T.A., and Landis, R.S. (1992) A high-resolution magnetic imaging system based on a SQUID magnetometer, Rev. Sci. Instrum. 63 (7), 3652–3658.
Hibbs, A.D. (1992) Measurement of electrochemical corrosion currents using a multichannel superconducting quantum interference device magnetometer, J. Electrochem. Soc. 139 (9), 2447–2457.
Richter, H. and Knecht, A. (1997) HTS SQUID magnetometer–feasibility study on non-destructive detection of corrosion currents in aluminum aircraft parts, Materialpruefung 39, 390–396.
Li, D., Ma, Y.P., Flanagan, W.F., Lichter, B.D., and Wikswo, Jr., J.P. (1994) The use of superconducting magnetometry to detect corrosion in aircraft alloys, Proceedings of the Tri-Service Conference on Corrosion, Orlando, FL, pp. 335–346.
Li, D., Ma, Y.P., Flanagan, W.F., Lichter, B.D., and Wikswo, Jr., J.P. (1995) Detecting in-situ active corrosion by a SQUID magnetometer J. Minerals, Metals and Materials 47 36–39.
Li, D., Ma, Y.P., Flanagan, W.F., Lichter, B.D., and Wikswo, Jr., J.P. (1996) Application of superconducting magnetometry in the study of aircraft aluminum alloy corrosion, Corrosion 52, 219–231.
Li, D., Ma, Y.P., Flanagan, W.F., Lichter, B.D., and Wikswo, Jr., J.P. (1997) Detection of hidden corrosion of aircraft aluminum alloys by magnetometry using a superconducting quantum interference device, Corrosion 53, 93–98.
Abedi, A. and Wikswo, Jr., J.P. Investigating and modeling of the sources of magnetic field associated with uniform corrosion of 7075-T6 aircraft aluminum alloy, in preparation.
Skennerton, G., Abedi, A., and Wikswo, Jr., J.P. Magnetic measurements of the response of corrosion activity within aircraft lap joints to accelerated corrosion testing, in preparation.
Fitzpatrick, G.L., Thome, D.K., Skaugset, R.L., and Shih, E.Y.C. (1993) The present status of magneto-optic eddy current imaging technology, in D.O. Thompson and D.E. Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 12A, pp. 617–624.
Staton, D.J., Rousakov, S.V., and Wikswo, Jr., J.P. (1996) Conductivity imaging in plates using current injection tomography, in D.O. Thompson and D.E.Chimenti (eds.), Review of Progress in QNDE, Plenum Press, New York, vol. 15A, pp. 845–851.
Wikswo, Jr., J.P., Gevins, A., and Williamson, S.J. (1993) The future of the EEG and MEG, Electroenceph. clin. Neurophysiol. 87, 1–9.
Tucker, D.M. (1993) Spatial sampling of head electrical fields: The geodesic sensor net, Electroenceph. clin. Neurophysiol. 87, 154–163.
Gevins, A.S., DuRosseau, D., and Libove, J. (1991) Electrode system for brain wave detection, U.S. Patent 5, 038–782.
Gevins, A.S., Le, J., Brickett, P., Reutter, B., and Desmond, J. (1991) Seeing through the skull: Advanced EEGs use MRIs to accurately measure cortical activity from the scalp, Brain Topog. 4(2), 125–131.
Gevins, A., Smith, M.E., Le, J., Leong, H., Bennett, J., Martin, N., McEvoy, L., Du, R., Whitfield, S. (1996) High resolution evoked potential imaging of the cortical dynamics of human working memory, Electroenceph. clin. Neurophysiol. 98, 327348.
Murgical Treatment of the Epilepsies, J. Engel, Jr. (ed.), Raven Press, New York, p. 26.
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Wikswo, J.P. (2000). Applications of SQUID Magnetometers to Biomagnetism and Nondestructive Evaluation. In: Weinstock, H. (eds) Applications of Superconductivity. NATO ASI Series, vol 365. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0752-7_3
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