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Author

  • Anthony Gachagan

Wavelet analysis of poorly-focused ultrasonic signal of pressure tube inspection in nuclear industry

Zhao, H., Gachagan, A., Dobie, G. & Lardner, T., 20 Apr 2018, 44th Annual Rview of Progress in Quantitative Nondestructive Evaluation. Chimenti, D. E. & Bond, L. J. (eds.). Melville, New York, Vol. 37. 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
20 Downloads (Pure)

Virtual prototyping of a catheter transducer array for internal hepatic sonoporation

Moldovan, A. C., Dziewierz, J., Gachagan, A., Cochran, S. & Lay, H., 20 Dec 2018, 2018 IEEE International Ultrasonics Symposium (IUS). Piscataway, NJ: IEEE, 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
1 Citation (Scopus)
12 Downloads (Pure)

Using phase information to enhance speckel noise reduction in the ultrasonic NDE of coarse grain materials

Lardner, T., Li, M. & Gachagan, A., 18 Feb 2014, 40th Annual Review of Progress in Quantitative Nondestructive Evaluation: Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing. Chimenti, D. E., Bond, L. J. & Thompson, D. O. (eds.). Melville, NY, Vol. 1581.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

3 Citations (Scopus)
Open Access
File
12 Downloads (Pure)

Ultrasonic wave propagation in cylindrical vessels and implications for ultrasonic reactor design

Mutasa, T., Gachagan, A., Nordon, A. & O'Leary, R. L., 30 Jun 2011, Proceedings 2010 IEEE International Ultrasonics Symposium. New York: IEEE, p. 1470-1473 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
4 Citations (Scopus)
156 Downloads (Pure)
Open Access
File
17 Downloads (Pure)
2 Citations (Scopus)
1 Downloads (Pure)
Open Access
File
4 Citations (Scopus)
34 Downloads (Pure)
9 Citations (Scopus)

Ultrasonic imaging of electrofusion welded polythene pipes employed in utilities industry

Thattaliyath Kadumberi, A. P., O'Leary, R. & Gachagan, A., 11 Sep 2012, 51st Annual Conference of the British Institute of Non-Destructive Testing 2012 (NDT 2012): Proceedings of a meeting held 11-13 September 2012, Northamptonshire, UK.. Northampton, p. 129-139 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
579 Downloads (Pure)

Ultrasonic imaging of electrofusion welded polyethylene pipes employed in utilities industry

TK, A. P., O'Leary, R., Gachagan, A., Ross, K. & Clutton, E., 4 Sep 2012, Proceedings of BINDT 2012. Red Hook, 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
1 Citation (Scopus)
175 Downloads (Pure)

Ultrasonic array imaging through reverberating layers for industrial process analysis

Ingram, M., Gachagan, A., Mulholland, A. J., Nordon, A. & Hegarty, M., 20 Dec 2018, 2018 IEEE International Ultrasonics Symposium. Piscataway, NJ: IEEE, 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
1 Downloads (Pure)

Transient supramolecular reconfiguration of peptide nanostructures using ultrasound

Pappas, C. G., Mutasa, T., Frederix, P. W. J. M., Fleming, S., Bia, S., Debnath, S., Kelly, S. M., Gachagan, A. & Ulijn, R. V., 1 Mar 2015, In : Materials Horizons. 2, 2, p. 198-202 5 p.

Research output: Contribution to journalArticle

Open Access
File
28 Citations (Scopus)
105 Downloads (Pure)

Towards guided wave robotic NDT inspection: EMAT size matters

Trushkevych, O., Dixon, S., Tabatabaeipour, M., Dobie, G., Potter, M. D. G., MacLeod, C., Gachagan, A., Pierce, S. G. & Edwards, R. S., 6 Oct 2019. 4 p.

Research output: Contribution to conferencePaper

Open Access
File
8 Downloads (Pure)

The use of fractal geometry in the design of piezoelectric ultrasonic transducers

Mulholland, A., MacKersie, J., O'Leary, R., Gachagan, A., Walker, A. & Ramadas, S. N., 2011, 2011 IEEE International Ultrasonics Symposium (IUS) . Piscataway, NJ, United States: IEEE, p. 1559-1562 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

7 Citations (Scopus)
Open Access
File
11 Citations (Scopus)
119 Downloads (Pure)

The characterization of htt products using a combination linear and non-linear ultrasonic techniques

Wang, C., Gachagan, A., Nordon, A., Curtis, R. A. & Littlejohn, D., 2011, 2010 IEEE Ultrasonics Symposium. IEEE, p. 1160-1163 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

The application of finite element analysis to investigate the vibrational response of a turbine blade under thermosonic excitation

Bolu, G. N., Gachagan, A., Pierce, S. & Barden, T., 18 Jul 2012, (Unpublished).

Research output: Contribution to conferencePaper

Open Access
File
2 Citations (Scopus)
268 Downloads (Pure)
Open Access
File
19 Downloads (Pure)

Speckle suppression using adaptive frequency compounding in ultrasound nondestructive evaluation of coarse-grained material

Xiao, B., Gongzhang, R., Lardner, T., O'Leary, R. & Gachagan, A., 14 Jul 2014, (Unpublished).

Research output: Contribution to conferencePoster

Simulation and measurement of nonlinear behaviour in a high-power test cell

Harvey, G. & Gachagan, A., Apr 2011, In : IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 58, 4, p. 808-819 12 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Robust frequency diversity based algorithm for clutter noise reduction of ultrasonic signals using multiple sub-spectrum phase coherence

Gongzhang, R., Li, M., Xiao, B., Lardner, T. & Gachagan, A., 2013, Proceedings of the 40th Annual Review of Progress in Quantitative Nondestructive Evaluation: Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing. Chimenti, D. E., Bond, L. J. & Thompson, D. O. (eds.). Melville, Vol. 33A. (AIP Conference Proceedings; vol. 1581).

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

6 Citations (Scopus)

Robust defect detection in ultrasonic nondestructive evaluation (NDE) of difficult materials

Gongzhang, R., Li, M., Lardner, T. & Gachagan, A., 2012, 2012 IEEE International Ultrasonics Symposium (IUS) Proceedings. IEEE, p. 467-470 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

10 Citations (Scopus)
Open Access
File
37 Citations (Scopus)
6824 Downloads (Pure)

Radiation properties of truncated cones to enhance the beam patterns of air-coupled transducers

Guarato, F., Mulholland, A. J., Windmill, J. F. & Gachagan, A., 19 Sep 2015, In : Physics Procedia. 70, p. 163-166 4 p.

Research output: Contribution to journalConference Contribution

Open Access
File
103 Downloads (Pure)

Process Control

Lozev, M., Becker, E., Orwig, S., Avila, C., Djordjevic, G., Gachagan, A., Herdsman, C., Mulholland, A., Poole, A. & Vickers, G., 9 Aug 2016, IPC No. G01N29/02, Patent No. 15/043,724, Priority date 3 Apr 2015, Priority No. 62/128,348

Research output: Patent

Polymer substrates for the rapid implementation of capacitive ultrasonic transducers

Mackie, E., O'Leary, R., Gachagan, A. & Walker, A., 10 May 2011.

Research output: Contribution to conferencePoster

New speckle noise suppression technique using cross-correlation of array sub-apertures in ultrasonic NDE of coarse grain materials

Lardner, T., Li, M., Gongzhang, R. & Gachagan, A., 2013, Review of Progress in Quantitative Nondestructive Evaluation . Thompson, D. O. & Chimenti, D. E. (eds.). Melville, Vol. 32A and 32B. p. 865-871 7 p. (AIP Conference Proceedings; vol. 1511).

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

6 Citations (Scopus)

Multi-aperture beamforming for automated large structure inspection using ultrasonic phased arrays

Su, R., Mineo, C., MacLeod, C. N., Pierce, S. G. & Gachagan, A., 17 May 2018, (Accepted/In press) 45th Annual Review of Progress in Quantitative Nondestructive Evaluation. Melville, NY.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
4 Downloads (Pure)
Open Access
File
66 Downloads (Pure)

Mapping the material microstructure of safety critical components using ultrasonic phased arrays

Tant, K. M. M., Galetti, E., Mulholland, A. J., Curtis, A. & Gachagan, A., 18 Sep 2016, 2016 IEEE International Ultrasonics Symposium (IUS) . Piscataway, NJ.: IEEE, 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
2 Citations (Scopus)
116 Downloads (Pure)

Linear ultrasonic array incorporating a Cantor Set fractal element configuration

Fang, H., Qiu, Z., O'Leary, R. L., Gachagan, A. & Mulholland, A. J., 2 Nov 2017, IEEE International Ultrasonics Symposium (IUS), 2017. Piscataway, N.J.: IEEE, 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
25 Downloads (Pure)

Linear ultrasonic array design using cantor set fractal geometry

Fang, H., Qiu, Z., Mulholland, A. J., O'Leary, R. L. & Gachagan, A., 8 May 2018. 4 p.

Research output: Contribution to conferencePoster

Open Access
File
14 Downloads (Pure)

Investigations into the vibrational response of an aero-engine turbine blade under thermosonic excitation

Bolu, G. N., Pierce, G., Gachagan, A., Barden, T. & Harvey, G., 2012, In : Key Engineering Materials. 518, p. 184-192 9 p.

Research output: Contribution to journalConference Contribution

Investigation of fundamental ultrasonic propagation characteristics in NDT of electron beam melting additive manufactured samples

Tofeldt, O., Pierce, SG., Smillie, G., Kerr, W., Flockhart, GMH., Macleod, CN., Blue, R., Gachagan, A., Stratoudaki, T., Andersson, J. & McMahon, D., 14 Feb 2018, (Accepted/In press). 4 p.

Research output: Contribution to conferencePaper

Open Access
File
40 Downloads (Pure)

Intentional weld defect process: from manufacturing by ‎‎robotic welding machine to inspection ‎using TFM phased ‎‎array ‎

Javadi, Y., Vasilev, M., MacLeod, C. N., Pierce, S. G., Su, R., Mineo, C., Dziewierz, J. & Gachagan, A., 8 May 2019, 45th Annual Review of Progress in Quantitative Nondestructive Evaluation. Laflamme, S., Holland, S. & Bond, L. J. (eds.). Melville, NY., 040011

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
2 Citations (Scopus)
31 Downloads (Pure)

Integration of acoustic emission systems within Integri-Tech™ analysis system for structural health monitoring of pressurised engineering plant

Ghouri, A. A., Rafferty, S., Pickwell, A., Galbraith, W., Pierce, S. G. & Gachagan, A., 9 Jul 2015, In : Journal of Physics: Conference Series . 628, 1, 8 p., 012023.

Research output: Contribution to journalConference Contribution

Open Access
File
55 Downloads (Pure)

Inspection of complex components using 2D arrays and TFM

McGilp, A., Dziewierz, J., Lardner, T., Gachagan, A., MacKersie, J. & Bird, C., Jan 2015, 53rd Annual Conference of the British Institute of Non-Destructive Testing (NDT 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Inspection design using 2D phased array, TFM and cueMAP software

McGilp, A., Dziewierz, J., Lardner, T., MacKersie, J. & Gachagan, A., 18 Feb 2014, 40th Annual Review of Progress in Quantitative Nondestructive Evaluation: Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing. Chimenti, D. E., Bond, L. J. & Thompson, D. O. (eds.). Melville, NY, Vol. 1581.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Improving the operational bandwidth of a 1-3 piezoelectric composite transducer using Sierpinski Gasket fractal geometry

Fang, H., Qiu, Z., O'Leary, R., Gachagan, A. & Mulholland, A., 18 Sep 2016, Ultrasonics Symposium (IUS), 2016 IEEE International. IEEE, 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
4 Citations (Scopus)
79 Downloads (Pure)

Image de-noising via spectral distribution similarity analysis for non-destructive evaluation

Gachagan, A., Xiao, B., Gongzhang, R., O'Leary, R. & Li, M., 2013.

Research output: Contribution to conferencePaper

Hybrid simulation model of ultrasonic inspection of pressure tubes in nuclear industry

Zhao, H., Dobson, J., Gachagan, A., Lardner, T. & Dobie, G., 12 Sep 2016, Proceedings of 55th Annual British Conference of Non-Destructive Testing - NDT 2016 : Theoretical Modelling . New York, USA, p. 1-10 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
69 Downloads (Pure)

High intensity focused ultrasound array transducers using 2-2 stacked piezoelectric composite appropriate for sonochemistry application

Wang, C., Gachagan, A., O'Leary, R. & MacKersie, J., 2012, 2012 IEEE International Ultrasonics Symposium (IUS) Proceedings. Piscataway, N.J.: IEEE, p. 2497-2500 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

High intensity focused ultrasound array transducers for sonochemistry applications

Wang, C., Gachagan, A. & O'Leary, R. L., 2011, 2011 IEEE International Ultrasonics Symposium. Piscataway, NJ: IEEE, p. 2329-2333 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Fractal geometry 1-3 piezoelectric composite with improved bandwidth

Fang, H., Mulholland, A., Gachagan, A. & O'Leary, R., 2016.

Research output: Contribution to conferencePoster

Open Access
File
1 Citation (Scopus)
25 Downloads (Pure)