By Lewis Larmore (auth.), A. F. Metherell, Lewis Larmore (eds.)
This quantity provides the court cases of the second one overseas Sym posium on Acoustical Holography, which used to be held on the Douglas complicated examine Laboratories on 6 and seven March 1969, fifteen months after the 1st symposium. area was once restricted to approximately a hundred and ten seats, with representatives from 9 international locations attending. those international locations integrated Canada, England, France, Japan, Mexico, Scotland, Sweden, Switzerland, and the USA. The symposium consisted of 21 formal papers. The 22nd, by means of Dr. U. Fehr, was once no longer learn, yet is incorporated in those lawsuits. The manu script of the attention-grabbing paper on acoustic propagation in a turbulent medium which was once learn by way of Dr. O. ok. Mawardi used to be no longer obtained in time for e-book in those complaints, and we glance ahead to its ebook probably at a later date within the open literature. as well as the formal papers there have been 3 casual shows on the finish of the assembly which have been given via Dr. A. Lohmann, through L. A. Cram and okay. O. Rossiter, and via T. S. Graham, that are additionally integrated in those court cases. on the finish of the formal displays Dr. Lewis Larmore summarized the symposium and mentioned many of the highlights. For the symposium precis and a precis of those court cases the reader is pointed out bankruptcy 1.
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M. A. EI-Sum REFERENCES I. A. F. Metherell, H. M. A. EI-Sum, and L. Larmore, editors, Acoustical Holography, Vol. I, Plenum Press, New York (1969). 2. R. K. Mueller and P. N. , Chapter 3. 3. B. B. , Chapter 4. 4. R. B. Smith and B. B. Brenden, IEEE Symposium on So nics and Ultrasonics, September 25-27,1968, New York. 5. L. H. Enloe, W. C. , and C. B. Rubinstein, Bell System Tech. 47 :1875 (1968). 6. R. K. Mueller, E. Maromand D. Fritzler, Appl. Phys. Letters 12 :394 (1968). 7. A. Macovski, Appl.
L(a). As shown in Fig. 2, we generate a beam of sound of width Ds, traveling in the X direction. From the left is incident a parallel beam of light of width Di making an angle 4JB with the wavefronts of the sound. The diffracted light is shown emerging at the right. It is assumed to be a parallel beam of width Dd also making an angle 4JB with the sound wavefronts. That part of the incident light that is not x Ds Fig. 2. Gedankenexperiment illustrating development of raytracing method. 41 Eikonal Theory of Bragg-Diffraction Imaging incident ray diffracted ray diffracted ray i-'B -1- 'B sound ray sound ray a) b) Fig.
Press (1955). Chapter 4 EIKONAL THEORY OF BRAGGDIFFRACTION IMAGING A. Korpel Zenirh Radio Corporarion Chicago. J//inois Although the initial explanation of Bragg-diffraction imaging was based on an intuitive ray approach, it is generally assumed that, because this process is essentially one of diffraction, it is really only explainable on the basis of a wave theory. At the First Symposium on Acoustical Holography such a (two-dimensional) theory was presented which essentially confirmed the predictions of the intuitive ray approach.