Photoacoustic Imaging with a Line-Focus Laser Beam for Rapid Inspection and Tomographic Characterization of Simulated Surface and Undersurface Defects — Oak Academic Publishing
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Photoacoustic Imaging with a Line-Focus Laser Beam for Rapid Inspection and Tomographic Characterization of Simulated Surface and Undersurface Defects
Graduate School of Engineering, Tohoku Gakuin University, Tagajo, Japan
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Graduate School of Engineering, Tohoku Gakuin University, Tagajo, Japan
1 Graduate School of Engineering, Tohoku Gakuin University, Tagajo, Japan
2 Graduate School of Engineering, Tohoku Gakuin University, Tagajo, Japan
A photoacoustic (PA) imaging apparatus using a laser line-focus beam (LFB) was designed to perform rapid inspection and photoacoustic tomographic (PAT) imaging of surface and undersurface defects. 2D-PAT imaging of surface and undersurface defects was demonstrated based on a formulation similar to the X-ray tomography. The obtained PAT images represented forward-projected PA signals collected along the LFB. The reconstructed images were in close agreement with those obtained from laser point-focus beam (PFB) PA imaging. We achieved rapid non-destructive in spection of a surface-simulated defect using a LFB. The reconstructed PA image of the undersurface defect was consis tent with that obtained by a plane-thermal wave diffraction model.
R. L. Thomas, J. J. Pouch, Y. H. Wong, L. D. Favro, P. K. Kuo and A. Rosencwaig, “Subsurface Flaw Detection in metals by Photoacoustic Microscopy,” Journal of Applied Physics, Vol. 51, No. 2, 1980, pp. 1152-1156. doi:10.1063/1.327726
K. R. Grice, L. J. Ingelhart, L. D. Favro, P. K. Kuo and R. L. Thomas, “Thermal Wave Imaging of Closed Cracks in Opaque Solids,” Journal of Applied Physics, Vol. 54, No. 11, 1983, pp. 6245-6255. doi:10.1063/1.331942
N. Ohtaki, M. Hatake-yama, M. Suzuki, H. Endoh, T. Hoshimiya, M. Kawakami, Y. Muraki, T. Nakajima, A. Tominaga and M. Takeshi, “Nondestructive Image Evaluation of Welded Zone of Steel Plate by Photoacoustic Microscope,” Japanese Journal of Applied Physics, Vol. 46, No. 7B, 2007, pp. 4613-4615. doi:10.1143/JJAP.46.4613
T. Hoshimiya, H. Endoh and Y. Hiwatashi, “Observation of Surface Defects Using Photoacoustic Microscope and Quantitative Evaluation of the Defect Depth,” Japanese Journal of Applied Physics., Vol. 35, No. 5B, 1996, pp. 2916-2920. doi:10.1143/JJAP.35.2916
T. Hoshimiya, M. Hatake-Yama, N. Ohtaki and H. Endoh, “On the Photoacoustic Nondestructive Instrumentation with a Line-Focus Laser Beam and a Planar Specimen Combination,” Proceedings of the 26th Symposium on Ultrasonic Electronics (Tokyo), 2005, pp. 321-322.
T. Nakata, H. N. Kobayashi and T. Ninomiya, “Heiretsu Reiki isou Shihuto Sekibunn Kennsyutsuhou wo Mochiita Kousoku Hikari Netsu Henni Kennbikyou no Kentou (Study on High-Speed Photothermal Displacement Microscopy Using Parallel Excitation and Phase-Shifting Signal Integration),” Abstract of the 14th Symposium on Ultrasonics Electronics (Yokohama), 1993, 81-82 (in Japanese).
A. C. Kak and M. Slaney, “Principles of Computerized Tomographic Imaging,” IEEE Press, Piscataway, 1988.
D. N. G. Roy, “Methods of Inverse Problems in Physics,” CRC Press, Boston, 1991.
L. Nicolaides, M. Munidasa and A. Mandelis, “Thermal-Wave Infrared Radiometric Slice Diffraction Tomography with Back-Propagation and Transmission Reconstructions: Experimental,” Inverse Problems, Vol. 13, No. 5, 1997, pp. 1413-1425. doi:10.1088/0266-5611/13/5/019
L. Nicolaides and A. Mandelis, “Image-Enhanced Thermal-Wave Slice Diffraction Tomography with Numerically Simulated Reconstruction,” Inverse Problems, Vol. 13, No. 5, 1997, pp. 1393-1412. doi:10.1088/0266-5611/13/5/018
O. Pade’ and A. Mandelis, “Computational Thermal Wave Slice Tomography with Back Propagation and Transmission Reconstructions,” Review of Scientific Instruments, Vol. 64, No. 12, 1993, p. 3548. doi:10.1063/1.1144282
O. Pade’ and A. Mandelis, “Thermal Wave Slice Tomography Using Wave Field Reconstruction,” Inverse Problems, 10, No. 1, 1994, pp. 185-197. doi:10.1088/0266-5611/10/1/014
L. D. Favro, H. J. Jin, P. K. Kuo, R. L. Thomas and Y. X. Wang, “Real Time Thermal Wave Tomography,” Proceedings of the Seventh International Topical Meeting on Photoacoustic and Photothermal Phenomena, Doorwerth, 1991, pp. 519-521.
R. L. Thomas, L. D. Favro, H. J. Jin, P. K. Kuo and Y. X. Wang, “Pulse-Echo Thermal Wave Tomography,” Proceedings of 14th International Congress Acoustics, Beijing, 1992, p. A13-8.
K. P. Koestil and P. C. Beard, “Two-Dimensional Photoacoustic Imaging by the Use of Fourier-Transform Image Reconstruction and a Detector with an Anisotropic Response,” Applied Optics, Vol. 42, No. 10, 2003, pp. 1899-1908. doi:10.1364/AO.42.001899
S. J. Norton and T. Vo-Dinh, “Optoacoustic Diffraction Tomography: Analysis of Algorithms,” The Journal of the Optical Society of America, Vol. 20, No. 10, 2003, pp. 1859-1866. doi:10.1364/JOSAA.20.001859
X. Wang, Y. Xu, and L. V. Wang, “Time-Domain Reconstruction Algorithms and Numerical Simulations for Thermoacoustic Tomography in Various Geometries,” IEEE Transactions on Biomedical Engineering, Vol. 50, No. 9, 2003, pp. 1086-1099. doi:10.1109/TBME.2003.816081
X. Wang, Y. Pang, X. Xie, G. Stoica and L. V. Wang, “Noninvasive Laser-Induced Photoacoustic Tomography for Structural and Functional in Vivo Imaging of the Brain,” Nature Biotechnology, Vol. 21, No. 7, 2003, pp. 803-806. doi:10.1038/nbt839
M. Xu and L. Wang, “Universal Back-Projection Algorithm for Photoacoustic Computed Tomography,” Physical Review E, Vol. 71, No. 1, 2005, pp. 016706-1-7.
J. F. Power, “Inverse Problem Theory in the Optical Depth Profilometry of Thin Films,” Review of Scientific Instruments, Vol. 73, No. 12, 2002, pp. 4057-4141. doi:10.1063/1.1517054
T. Hoshimiya and M. Suzuki, “Undersurface Photoacoustic Imaging of Plane Solid Specimens by the Use of a Line Laser Beam,” Proceedings of 2005 IEEE Ultrasonics Symposium, Rotterdam, 18-21 September 2006, pp. 2093-2096.
T. Hoshimiya and M. Hatake-yama, “Photoacoustic Tomographic Characterization of Surface and Undersurface Simulated Defects with a Line-focus Laser Beam,” Proceedings of 2006 IEEE International Ultrasonics Symposium, Vancouver, 2-6 October 2007, pp. 780-783.
P. C. Sabatier, “Inverse Problems: An Interdisciplinary Study, Advances in Electronics and Electron Physics Supplement 19,” Academic Press, Norwell, 1978.
S. R. Deans, “The Radon Transform and Some of its Applications,” Kreager, 1993.
T. Hoshimiya, “Simulation of Thermally-Diffused Images and a Concept of Holoscan in Photoacoustics and Optical-Probe Imaging.,” Applied Optics, Vol. 33, No. 31, 1994, 1994, pp. 7251-7257. doi:10.1364/AO.33.007251
K. Iizuka, “Engineering Optics,” Second Edition, Chapter 3, Springer Verlag, Heidelberg, 1983.
T. Hoshimiya and K. Miyamoto, “Applications of Linear-Motor-Driven Photoacoustic Microscope,” Ultrasonics, Vol. 42, No. 1-9, 2004, pp. 993-996. doi:10.1016/j.ultras.2003.12.011
L. R. Rose, “Point-Source Representation for Laser-Generated Ultrasound,” Journal of the Acoustical Society of America, Vol. 75, No. 3, 1984, pp. 723-732. doi:10.1121/1.390583
G. R. Wetsel, “Photothermal Generation of Thermoelastic Waves in Composite Media,” IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Vol. 33, No. 5, 1986, pp. 450-461. doi:10.1109/T-UFFC.1986.26856
M. Kasai, “Hikarionkyou Kenbikyou ni Kansuru Kenkyu (Research on Photoacoustic Microscope),” Ph.D. Thesis of Tokyo University, Chapter 3, 1984 (in Japanese). The Part of the Thesis without the PAT Description Was Published as T. Sawada and M. Kasai, “Hikari/Densi Onkyou Kenbikyou (Photon and Electron-Beam Acoustic Microscopy)” Bunkou Kenkyu, Vol. 33, 1984, 1984, pp. 307- 319 (in Japanese).