FIFTH CANADIAN CONFERENCE ON NONDESTRUCTIVE ... - IAEA

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C<strong>ON</strong>CLUSI<strong>ON</strong> Classical bulk and surface wave pulse-echo techniques were evaluated in their ability to detect and size surface breaking cracks in the base of rails. Although both of these techniques give good results for EDM slots, echo amplitudes from real cracks depend on crack closure and the presence of filling material. Rayleigh waves offer considerable advantages in terms of singal to noise and ease of detection [22] but their high sensitivity to factors other than crack depth make them unusable for sizing. Classical shear wave pulse-echo techniques were found to be in good agreement with the open flaw depth when calibrated on EDM slots. For proper sizing of the full depth, the techniques used were found inadequate. Since the closed or filled part of cracks are partially transparent to ultrasound, it is likely that more advanced NDT techniques using feature extraction in the time or frequency domain would also be inadequate without adaptation. This work points out the need for theoretical modelling and experimentation on the interaction of ultrasound with closed cracks and in particular of the scattering phenomena occuring at the tip [23], REFERENCES: [1] K.G. Hall; Non-Destructive Testing, p 121, June (1976) [2] H.J. Mayer; Mater. Eval., j42, 793 (1984) [3] J. Drury; Brit. J. NDT, p 200, July (1979) [4] E.A. Kraut; IEEE Trans. Sonics Ultrasonics, Su-^3_, 162 (1976) [5] P.A. Doyle, CM. Scala; Ultrasonics, 16, 164 (1978) [6] R.B. Thompson, D.O. Thompson; J. Metals, p. 29, July (1981) [7] K. Date, H. Shimada, N. Ikenaga; NDT Intl, JJ5» 315 (1982) [8] S. Serabian; Mater. Eval., J39_, 1243 (1981) [9] K. Harumi, H. Okada, T. Saito, T. Fujimori; IEEE Ultrasonics Symposium, p. 904 (1982) [10] T. Kundu, A.K. Mai; Trans. ASME, 48, 570 (1981) [11] V.U. Schmitz, F.L. Becker; Mater. Eval., _40, 191 (1982) [12] L. Adler, K. Lewis, M. de Billy, G. Quentin; "New Procedures in Nondestructive Testing" P. Holler, Ed. (Springer-Verlag 1983) p. 163 [13] R.B. Thompson, C.J. Fiedler; "Review of Progress in Quantitative Nondestructive Evaluation 3"; D.O. Thompson and D.E. Chimenti, Eds. (Plenum Press, NY, 1984) [14] I.A. Viktorov; "Rayleigh and Lamb Waves", (Plenum Press, NY 1967) [15] J.M. Carson, J.L. Rose; Mater. Eval. p. 27, April (1980) [16] L. Adler, M. de Billy, G. Quentin; J. Appl. Phys. j)3, 8756 (1982) [17] M. Hirao, H. Fukuoda, Y. Mirura; J. Acoust. Soc. Ara. 7^, 602 (1980) [18] G.P. Singh, A. Singh; Mater. Eval. J39_, 1232 (1981) [19] Y.C. Angel, J.D. Achenbach; J. Acoust. Soc. Am., 7j>, 313 (1984) [20] B.W. Reinhardt, J.W. Dally; Mater. Eval., ^8, 213 (1970) [21] W.M. Visscher; ibid [15] [22] H. Seiger; NDT Intl., p. 131, June (1982) [23] R.B. Thompson; Applied Mechanics Division of ASME, Symposium on Wave Propagation in Inhomogeneous Media, San Antonio, Texas, June 1984
Flaw Figure 1: Schematic of experimental set-up used for bulk waves and oscilloscope trace for an EDM defect 0.040" deep. Flaw t Figure 2: Schematic of Kayleigh wave set up and oscilloscope trace obtained with a 0.020" deep EDM slot using half the gain used in Figure 1.
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q 11 Atomic Energy of Canada Limite
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ATOMIC ENERGY OF CANADA LIMITED FIF
Page 5 and 6: CINQUIEME CONFERENCE CANADIENNE SUR
Page 7 and 8: iii ACKNOWLEDGEMENT A special note
Page 9 and 10: DAY 2 KEYNOTE ADDRESS: Advanced Rad
Page 11 and 12: DAY1 KEYNOTE ADDRESS: Five Years Ex
Page 13 and 14: MB Power has a total generating cap
Page 15 and 16: The fourth lesson learned was that
Page 17 and 18: STATION UNIT Coleson Cove Coleson C
Page 19 and 20: 0*'? - 8 - Ä | '••• '~-!.if~
Page 21 and 22: - 10 - 7/8 inch Titanium Tube 3D i
Page 23 and 24: The facility at CFB Greenwood was c
Page 25 and 26: CONDITION MONITORING - 14 - The Con
Page 27 and 28: - 16 - REDUCING UNWANTED EFFECTS ~
Page 29 and 30: - 18 - When this happens, the instr
Page 31 and 32: - 20 - (CJUIMTTCJW ROTOR BLADE SHOW
Page 33 and 34: - 22 - Un»hl«ld«d prob* - good b
Page 35 and 36: STEEL FASTENERS EXAMINATION OF FAST
Page 37 and 38: - 26 - SKIP FINNED TUHt •< IG 5 I
Page 39 and 40: To gain primary statistical informa
Page 41 and 42: - 30 - The next step in the develop
Page 43 and 44: Each firing of the capacitor banks
Page 45 and 46: - 34 - At the Bruce we have complet
Page 47 and 48: 1 GARTER SPRING IN VERTICAL POSITIO
Page 49 and 50: DIGITAL READ OUT 3.595 TOIL ELEMENT
Page 51 and 52: - 40 - EVALUATION OF ULTRASONIC MET
Page 53 and 54: III MEASUREMENTS AND RESULTS - 42 -
Page 55: C Real defects - 44 - Here we repor
Page 59 and 60: 0.5 E10 Q. 8 1.5 2.0 - 48 - Positio
Page 61 and 62: - 50 - Figure 6: Optical micrograph
Page 63 and 64: - 52 - specialized applications suc
Page 65 and 66: - 54 - As the probed surface is not
Page 67 and 68: - 56 - in practice the central frin
Page 69 and 70: - 53 - bipolar pulse, as it is seen
Page 71 and 72: - 60 - 18. J.-P. Monchalln and R. H
Page 73 and 74: Sample Lens Ultrasound - 62 - Detec
Page 75 and 76: CD CO c O Q. W 0 - 64 - Sin(7TfuT)
Page 77 and 78: - 66 - AUTOMATED ULTRASONIC TESTING
Page 79 and 80: - 68 - 2.1 Scanning Bridge and Imme
Page 81 and 82: - 70 - each waveform digitization t
Page 83 and 84: - 72 - Further development of the s
Page 85 and 86: TRANSDUCER SELECT/ PULSE CONTROL -
Page 87 and 88: SCAIIIIING BRIDGE COLOUR GRAPHICS D
Page 89 and 90: Figure J — Beam profile of 3.5 MH
Page 91 and 92: - 80 - an additional reverse magnet
Page 93 and 94: - 82 - reinitialise the stress depe
Page 95 and 96: BAR MAGNET IDEAL FIELDS MEASURED FI
Page 97 and 98: - 86 - Figure 4: Hysteresis loops f
Page 99 and 100: -150 H= 1.6 kA/m COMPRESSION -100 -
Page 101 and 102: - 90 - MAGNETISATION ANHYSTERETÎC
Page 103 and 104: (b) 19 mm diameter o Hard spot 19mm
Page 105 and 106: Q. I CO zL 2 (Ky) TYPICAL UNCERTAIN
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- 96 - Figure 14: Conceptual M-H be
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- 98 - characterization program bas
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- 100 - 1. Planar transducer: l.a.
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Fig. 1 1/JS - 102 - Echos observed
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- 104 - CAPABILITIES/LIMITATIONS OF
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- 106 - V = f* - 0.9 ak N [2] h. /^
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DISCUSSION - 108 - The results of t
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- 110 - FIGURE 1: Equipment Used fo
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FIGURE 4: - 112 - 5 10 IS 10 Depth
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FIGURE 6: Output of Computer Modell
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- 116 - "Events on earth consist in
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- 118 - now _n = Af (5) n where Af
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- 120 - REFERENCES 1. J.K. Feiblema
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PULSER IMMERSION TRANSDUCER WATER ^
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- 124 - 6. Ultrasonic frequency spe
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i I 1 i l - 126 - —j 10. Ultrason
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TIME RNFOSIS PLOT CRSF: - 128 - 1H.
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- 130 - THE INTRODUCTION OF REAL-TI
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5. QUALIFYING THE IMAGE - 132 - In
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- 134 - CONVENTIONAL FILM RADIOGRAP
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- 136 - 11.3 Computer Management of
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- 138 - Back end of system. The com
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- IAO - to be loaded properly into
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20. OPERATIONAL UTILIZATION - 142 -
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% -•'v/ FILM AND SCREENS ' \ INSI
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- 146 - By design, these A/E monito
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- 148 - a) enables an A/E monitor s
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- 150 - OTHER . CHANNELS CONVENTION
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DAY 2 KEYNOTE ADDRESS: Advanced Rad
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- 152 - ADVANCED RADIOGRAPHY FOR TR
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- 154 - for light weight and resist
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- 156 - available. Application exam
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- 158 - 28. V.J. Orphan, Science Ap
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CROSS SLIDE - 160 - AXIAL DRIVE : 3
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- 162 - Fig. 4. Two neutron radiogr
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INTRODUCTION (Continued) - 164 - Pr
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- 166 - SENSITOMETRIC QUALITY CONTR
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- 168 - MAKING THE TRANSITION TO AU
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(Continued) - 170 - The primary mec
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UJNXKAST o Indicated: o Calculated:
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- 174 - F»LM_i5=l£B_ DATE22=22=ß
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- 176 - RECENT MICROFUCUS X~RAY IMA
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ABSTRACT - 178 - WET CHANNEL INSPEC
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- 180 - 5) an eddy current probe to
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- 182 - tube, say 0.5-1.0 metre, so
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ACKNOWLEDGEMENTS - 184 - Many peopl
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- 186 - TABLE 3 Operational Objecti
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Pressure Tube Fuel -Carter Spring S
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«AC UUSU«O«HII INCUMKTM - 190 -
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Inlet or Outlet £nd Outlet 2m - 19
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- 194 - AN ADVANCED HEAT EXCHANGER
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- 196 - storage terminal. However,
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2.4 Data Processing Subsystem 2.4.1
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- 200 - display parameter set could
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5. PLAYBACK - 202 - A tape playback
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" * 0 0 MOkE* i SUN! SOW A 1 3* ~V
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SLHHT POU 422/14 - 206 - x •* F-R
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- 208 - The recent failure of a Zir
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- 210 - probe in its operating envi
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- 212 - The eddy current and wall t
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6. SUMMARY - 214 - The failure of a
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+2.5%p Lift Off •* - 216 - +5% Wa
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0 -0.2 -0.4 -0.6 -0.8 -1.0 c .1 2 o
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0 -0.25 -0.50 -0.75 -1.00 -1.25 i 1
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- 222 - CHECKING FOR CRACKS IN GAS
Page 237 and 238:
- 224 - on the fringes. (The sensit
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Figure 1 18 MW gas turbine rotor, p
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- 228 - Figure 3 Weak penetrant ind
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- 230 - Figure 7 All signals superi
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- 232 - Figure 11 Frequency respons
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- 234 - row 3 sent to 0 4 n 1Vor?d.
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1. INTRODUCTION - 236 - In-service
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- 238 - treatment, and bending are
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- 240 - With an AC coil surrounding
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- 242 - against magnet position, tr
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6. SUMMARY - 244 - Conventional edd
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10 1 Centre Magnet 2 Keepers 3 End
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A - II' Concentric Groove 0.1 mm de
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- 250 ON THE RELATION BETWEEN ULTRA
Page 265 and 266:
- 252 - Following a brief descripti
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CONCLUSION - 254 - In order to veri
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- 256 - 13. R.L. Smith, F.L. Rusbri
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Ultrasonic Instrumentation - 258 -
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100 a (m" 1 ) 10 f Slope = 4 10 - 2
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- 262 - ACOUSTIC EMISSION TESTING O
Page 277 and 278:
- 264 - Metal components with class
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- 266 - Any recognizable fibre dama
Page 281 and 282:
- 268 - FIGURE 1 EXPULSION OF FIBRE
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100 95 LU LU 5 S 90 ^"-85 K H H 80
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- 272 - FIGURE 6 SENSORS AND PREAMP
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900 800 700 i/> 600 H Z O 500 U 400
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- 276 - ACOUSTIC SORTING OF GRINDER
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- 278 - 6e P = Po c - St or p = p0
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- 280 - (9) for hardened steel. All
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- 282 - but not reseted, so the com
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- 284 - GOOD CRACKED 0 2 4 6 8 0 2
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0 - 286 - Figure 5: Resonance frequ
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- 288 - GOOD 0 .8 1.6 2.4 3.2 Level
Page 303 and 304:
- 290 - THE BENEFITS OF NDT TRAININ
Page 305 and 306:
- 292 - C.S.N.D.T. Chapters continu
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- 294 - The groundwork is in place.
Page 309 and 310:
- 296 - The graduates of these prog
Page 311 and 312:
- 298 - CERTIFICATION OF NONDESTRUC
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- 300 - (e) A differing but persist
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250 200 150 100 50 Magnetic Particl
Page 317 and 318:
LOOKING INTO THE FUTURE R.S. Sh.an.
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- 305 - Another 'near future 1 need
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- 307 - NDE OF STRUCTURAL CERAMICS
Page 323 and 324:
- 309 - The system described in thi
Page 325 and 326:
and - 311 - S = a 2j for XR>a (2) S
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TRANSCEIVER digital signal display
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m "O -30 z o Ul -40 u. Ul ce o o Ü
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- 317 - deep penetration in same fo
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- 319 - the density by »w3 to 7%.
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density 10 3 kg/m 3 dissipation fac
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(0 60 g40 «MM "5. 3 O ü Cö §20
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60 PZT7 Vp " - 325 - o A —polariz
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- 327 -
Page 343 and 344:
- 329 - Fig. 8: Typical Outputs of
Page 345 and 346:
- 331 - ULTRASONIC ANALYSIS OF VOID
Page 347 and 348:
- 333 - function is approximated by
Page 349 and 350:
PULSER/RECEIVER OSCILLOSCOPE SPECTR
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to •a I a. a Ê £ < IS i-o 00 -
Page 353 and 354:
Figure 5: Frequency spectra from: (
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- 341 - 100 150 Void Diameter (jjm)
Page 357 and 358:
- 343 - TIME (ns) Figure 9: Peak ti
Page 359 and 360:
- 345 - COMPUTER SIMULATION OF ULTR
Page 361 and 362:
pu = T XX + T Xy tt x y pV = T Xy +
Page 363 and 364:
- 349 - linear system of equations
Page 365 and 366:
- 351 - These boundary conditions a
Page 367 and 368:
10. EXAMPLE - 353 - The following e
Page 369 and 370:
3 "/A ! - 355 - 1 I 2 I Figs. 1-4.
Page 371 and 372:
INTRODUCTION - 357 - The inspection
Page 373 and 374:
- 359 - A 3 by k array was construc
Page 375 and 376:
INVERSION PROBLEM - 361 - The inver
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- 363 - the right of coils 1 to 6,
Page 379 and 380:
—- ••;•••• 'IM i lüi
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- 3hl 2 3 4 OISTANCE (mm) Figure h.
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- 369 - a) 0.080 X 0.010 X 0.004" 5
Page 385 and 386:
- 371 - DISTANCE ;,n(m) Figure 9b
Page 387 and 388:
- 373 - INTRODUCTION X-ray diffract
Page 389 and 390:
and - 375 - e a -^(a + a ) + —-
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- 377 - The commercial prototype is
Page 393 and 394:
- 379 - REFERENCES 1) Klug, H.P. an
Page 395 and 396:
- 381 - incident x-ray beam diffrac
Page 397 and 398:
- 383 - Fig. 5(a). 200 W X-ray tube
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- 385 - Fig. 7. Head of the commerc
Page 401 and 402:
- 387 - APPLICATIONS OF NEUTRON DIF
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peaks which are easily measurable.
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- 391 - directions around the circu
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I.-3 TRIPLE-AXIS NEUTRON SPECTROMET
Page 409 and 410:
Ad hki£ d hkil xlO 3 - 395 - INTER
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- 397 - Fig. 5 Longitudinal, tangen
Page 413 and 414:
I - INTRODUCTION - 399 - Polyethyle
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- 401 - This together with the expr
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- 403 - (5v/v)fit must be considere
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Transducer Signal - 405 - P.E.(p.v)
Page 421 and 422:
ü .CO ü m O o CÖ g •4—> Q 2.
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- 409 - The present study was carri
Page 425 and 426:
- 411 - Since tomographlc Images ar
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- 413 - bore axis, were scanned. Th
Page 429 and 430:
- 415 - normally measured with a sh
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(a) L (b) ic) 1 - 417 - •HwK- |3A
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Figure A : Orientation of the casti
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- 421 - APPENDIX A Determination of
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ÜJ I/) 1 ce TO PE/ a. 100 90 - 80
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- 425 - This paper will concentrate
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- 427 - Ultrasonic and radiographie
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- 429 - A micrograph of the laminat
Page 445 and 446:
- 431 - 2. Holography requires disp
Page 447 and 448:
- 433 - 10. Green, D.R., Schneller,
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- 4 35 - Fig. 2 (a): cross-section
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10 _ 0.1 1_ 0.01 0.1 1 - 437 - TIME
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• •' '
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HEATING PULSES DETECTOR " -—FILTE
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- 443 - 5 10 POSITION (mm) Fig. 10
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- 445 - MATERIALS EFFECTS ON ACOUST
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- 447 - orientation of these specim
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- 449 - determined experimentally f
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STRUCTURE •^ TRANSDUCER (S) - 451
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- 453 - 500 PRESSURE (KPO) LEAK DIA
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Caron, V. Energy Mines & Resources
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Mclntyre, Dent Babcock & Wilcox Can
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ISSN 0067-0367 To identify individu
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FIFTH CANADIAN CONFERENCE ON NONDESTRUCTIVE ... - IAEA

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