Abstract
Results of a recently-constructed Bragg-diffraction imaging system are shown. This new system employs a 10 × 15 cm transducer mosaic and operates at an acoustic frequency of 3.58 MHz, thus enabling it to be used with biological materials of considerable thickness. The system has a resolution capability of about 8.5 acoustic wavelengths and will produce images of bone structure in a human hand with an acoustic power-density of 100 mW/cm2 or less.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Glen Wade, John Landry, and Alwyn de Souza, “Acoustic Transparencies for Optical Imaging and Ultrasonic Diffraction,” Acoustical Holography, vol. I, Plenum Press (1969).
John Landry, John Powers, and Glen Wade, “Ultrasonic Imaging of Internal Structure by Bragg Diffraction,” Appl. Phys. Letters, 15, 186 (1969).
Roy Smith, Glen Wade, John Powers, and John Landry, “Studies of Resolution in a Bragg Imaging System,” Jour. Acoust. Soc. Am., 49, no. 3, 1062 (1971).
John Landry, Hormozdyar Keyani, and Glen Wade, “Conservation of Acoustic Phase in Ultrasonic Imaging by Bragg Diffraction,” to be published in Jour. Appl. Physics.
Richard Krimholtz, David Leedom, and George Matthaei, “New Equivalent Circuits for Elerrentary Piezoelectric Transducers,” Elect. Lett., vol. 6, pp. 398–9 (1970).
Don Berlincourt, Daniel Curran, and Hans Jaffe, “Piezoelectric and Piezomagnetic Materials and Their Function in Transducers,” in Mason, W. P. (Ed.): Physical Acoustics, vol. 1, [A], Academic Press (1964).
Adnan Sokollu, “Irreversible Effects of High Frequency Ultrasound on Animal Tissue and Related Threshold Intensities,” Acoustical Holography, vol. III, Plenum Press (1971).
John Landry, Roy Smith, and Glen Wade, “Optical Heterodyne Detection in Bragg Imaging,” Acoustical Holography, vol. III, Plenum Press (1971).
Roy Smith and Glen Wade, “Noise Characteristics of Bragg Imaging,” Acoustical Holography, vol. III, Plenum Press (1971).
It has been subsequently discovered that the inhomogeneities were largely due to multiple acoustic reflections within the cell, apparently the transducer parallelism is not critical.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1972 Plenum Press, New York
About this paper
Cite this paper
Landry, J., Keyani, H., Wade, G. (1972). Bragg-Diffraction Imaging: A Potential Technique for Medical Diagnosis and Material Inspection. In: Wade, G. (eds) Acoustical Holography. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8213-7_8
Download citation
DOI: https://doi.org/10.1007/978-1-4615-8213-7_8
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4615-8215-1
Online ISBN: 978-1-4615-8213-7
eBook Packages: Springer Book Archive