Publications

Books (Co-edited)    
Book chapters
Patents
Recent Referreed Journal Publications
Recent Referreed Conference Publications

Books (Co-edited)

  • Proceedings of the 5th International Conference on Position-Sensitive Detectors, Editors: A. Bird, P.R. Hobson, G.J. Royle and A. Smith, 2002.

Book chapters

  • Comprehensive Sensor Technology - volume 4: Biomedical sensors, Sensors for radiation spectroscopy, G.J. Royle, A. Olivo, R.D. Speller, Edited by D.P. Jones, Elsevier publishing.

Patents

  • Apparatus and methods for detecting and/or imaging gamma radiation, G.J.Royle and R.D.Speller, Patent no. PCT/GB96/01497.
  • Phase Contrast Imaging, A. Olivo and R. Speller, U.K. Patent Application GB 0617637.4.
  • An intelligent imaging system for mammography and dental radiology, R.D. Speller and G.J. Royle, Patent awarded, number pending.
  • An Ultra-high Speed LDA-PIV for Nanoparticle Aggregations, D. Chen, G. J. Royle and J.A. Griffiths, U.K. Patent ApplicationGB 1008192.5.

Recent Refereed Journal Publications

  • I-ImaS: Intelligent Imaging Sensor - application to intelligent x-ray imaging, J.A. Griffiths, G.J. Royle, G. Hall, R. Turchetta, C. Esbrand, R.D. Speller, Journal of Instrumentation, in press, 2010.
  • Optical characterisation of a CMOS active pixel sensor using periodic noise reduction techniques, A. Konstantinidis, A. Olivo, P.R.T. Munro, S.E. Bohndiek, R.D. Speller, Nuclear Instruments and Methods in Physics Research A, in press, 2010.
  • Characterisation of regional variations in a stitched CMOS active pixel sensor, H.M. Zin, A.C. Konstantinidis, E.J. Harris, J.F.P. Osmond, A. Olivo, S.E. Bohndiek, A.T. Clark, R. Turchetta, N. Guerrini, J. Crooks, N.M. Allinson, R. Speller, P.M. Evans, Nuclear Instruments and Methods in Physics Research A, in press, 2010.
  • Recent patents in x-ray phase contrast imaging, A. Olivo, Recent Patents on Biomedical Engineering, 3, 95-106, 2010.
  • Evaluation of digital breast tomosynthesis reconstruction algorithms using synchrotron radiation in standard geometry, K. Blitznakova, Z. Kolitsi , R.D. Speller, J.A. Horrocks, G. Tromba, N. Pallikarakis, Medical Physics, 37(4), 1893-903, 2010.
  • An elastically compressible phantom material with mechanical and x-ray attenuation properties equivalent to breast tissue, B.D. Price, A.P. Gibson, L.T. Tan, G.J. Royle, Physics in Medicine and Biology, 55(4), 1177-88, 2010.
  • The relationship between wave and geometrical optics models of coded aperture type x-ray phase contrast imaging systems, P.R.T. Munro, K. Ignatyev, R.D. Speller, A. Olivo, Optics Express, 18(5), 4103-17, 2010.
  • Experimental validation of a radiographic simulation code using breast phantom for x-ray imaging, K. Blitznakova, R. Speller, J. Horrocks, P. Liaparinos, Z. Kolitsi, N. Pallikarakis, Computers in Biology and Medicine, 40(2), 208-14, 2010.
  • Design and realization of a coded-aperture based x-ray phase contrast imaging for homeland security applications, A. Olivo, K. Ignatyev, P.R.T. Munro. R.D. Speller, Nuclear Instruments and Methods in Physics Research A, 610(2), 604-14, 2009.
  • Characterization and Testing of LAS: A prototype 'Large Area Sensor' with performance characteristics suitable for medical imaging applications, S.E. Bohndiek, A. Blue, J. Cabello, A.T. Clark, N. Guerrini, P.M. Evans, E.J. Harris, A. Konstantinidis, D. Maneuski, J. Osmond, V. O'Shea, R.D. Speller, R. Turchetta, K. Wells, H. Zin, N.M. Allinson, IEEE Transactions on Nuclear Science, 56(5), 2938-46, 2009.
  • Quantitative contrast-enhanced mammography for contrast medium kinetic studies, C.D. Arvanitis and R. Speller, Physics in Medicine and Biology, 54, 6041-64, 2009.
  • Atlas-based segmentation of degenerated lumbar intervertebral discs from MR images of the spine, S. Michopoulou, L. Costaridou, E. Pangiotopoulos, R. Speller, G. Panayiotakis, A. Todd-Pokropek, 56(9), 2225-31, 2009.
  • Deconvolution of x-ray phase contrast images as a way to retrieve phase information lost due to insufficient resolution, A. Olivo and R.D. Speller, Physics in Medicine and Biology, 54, N347-54, 2009.
  • Characterization of the components of a Prototype Scanning Intelligent Imaging System for use in Digital Mammography: The I-ImaS System, C.J. Esbrand, C.D. Arvanitis, S. Pani, B.D. Price, J.A. Griffiths, M. Metaxas, G.J. Royle, M. Noy, J. Leaver, R. Longo, T. Rokvic, R. Turchetta, H. Giorgiou, H. Schulerud, R.D. Speller, IEEE Transactions in Nuclear Science, 56(3(2)), 1419-25, 2009.
  • Multivariate data analysis for drug identification using energy-dispersive x-ray diffraction, E.J. Cook, S. Pani, L. George, S. Hardwick, J.A. Horrocks, R.D. Speller, IEEE Transactions in Nuclear Science, 56(3(2)), 1459-64, 2009.
  • Modelling an energy-dispersive x-ray diffraction imaging for drug detection, S. Pani, E. Cook, J. Horrocks, L. George, S. Hardwick, R. Speller, IEEE Transactions in Nuclear Science, 56(3(2)), 1238-41, 2009.
  • Reconstruction of UCL Germanium Compton camera data using ITEM, N. Dedek, W. Ghoggali, J. Horrocks, G.J. Royle, R.D. Speller, IEEE Transactions in Nuclear Science, 56(3(2)), 1340-50, 2009.
  • The Multidimensional Integrated Intelligent Imaging project (MI-3), N. Allinson, T. Anaxagoras, J. Aveyard, C. Arvanitis, R. Bates, A. Blue, S. Bohndiek, J. Cabello, L. Chen, S. Chen, A. Clark, C. Clayton, E. Cook, A. Cossins, J. Crooks, M. El-Gomati, P.M. Evans, W. Faruqi, M. French, J. Gow, T. Greenshaw, T. Grieg, N. Guerrini, E.J. Harris, R. Henderson, A. Holland, G. Jeyasundra, D. Karadaglic, A. Konstantinidis, H.X. Liang, K.M.S. Maini, G. McMullen, A. Olivo, V. O'Shea, J. Osmond, R.J. Ott, M. Prydderch, L. Qiang, G. Riley, G. Royle, G. Segnieri, R. Speller, J.R.N. Symonds-Tayler, S. Triger, R. Turchetta, C. Venanzi, K. Wells, X. Zha, H. Zin, Nuclear Instruments and Methods in Physics Research A, 604, 196-8, 2009.
  • An active pixel sensor x-ray diffraction (APXRD) system for breast cancer diagnosis, S.E. Bohndiek, G.J. Royle, R.D. Speller, Physics in Medicine and Biology, 54, 3513-27, 2009.
  • Phase contrast imaging of breast tumours with synchrotron radiation, A. Olivo, L. Rigon, S.J. Vinnicombe, K.C. Cheung, M. Ibison, R.D. Speller, Applied Radiation and Isotopes, 67, 1033-41, 2009.
  • A non-free space propagation x-ray phase contrast imaging method sensitive to phase effects in two directions simultaneously, A. Olivo, S.E. Bohndiek, J.A. Griffiths, A. Konstantinidis, R.D. Speller, Applied Physics Letters, 94, 044108, 2009.
  • Signal and noise transfer properties of CMOS based active pixel flat panel imager coupled to structured CsI:Tl, C.D. Arvanitis, S.E. Bohndiek, J. Blakesley, A. Olivo, R.D. Speller, Medical Physics, 36(1), 116-26, 2009.
  • XPCi - New technique enables transfer of x-ray phase contrast imaging to clinical practice, R. Speller and A. Olivo, European Hospitals, 17(1), 11, 2008.
  • Subjective image quality of lateral cephalometric radiographs with and without applying a predicting model, G. Li, H. Verheij, P. van der Stelt, R. Speller, J. Griffiths, M. Metaxas, G. Royle, et al., Chinese Journal of Dental Research, 11(2), 96-100, 2008.
  • Performance evaluation of 98 CZT sensors for their use in gamma-ray imaging, N. Dedek, R.D. Speller, P. Spendley, J.A. Horrocks, IEEE Transactions on Nuclear Science, 55(5), 2689-97, 2008.
  • Image formation principles in coded-aperture based x-ray phase contrast imaging, A. Olivo and R. Speller, Physics in Medicine & Biology, 53(22), 6461-74, 2008.
  • Assessing the validity of MTF evaluation techniques with application to small area and scanned digital detectors, B.D. Price, C.J. Esbrand, A. Olivo, A.P. Gibson, J.C. Hebden, R.D. Speller, G.J. Royle, Review of Scientific Instruments, 79, 113103-1, 2008.
  • A preliminary investigation of the potential of phase contrast x-ray imaging in the field of homeland security, A. Olivo, D. Chana, R. Speller, Journal of Physics D: Applied Physics, 41, 225503, 2008.
  • Comparison of methods for estimating the conversion gain of CMOS Active Pixel Sensors, S.E. Bohndiek, A. Blue, A.T. Clark, M.L. Prydderch, R. Turchetta, G.J. Royle, R.D. Speller, IEEE Sensors, 8(10), 1734-44, 2008.
  • Design and characterization of the I-ImaS multi-element x-ray detctor system, J.A. Griffiths, C. Venanzi, R.D. Speller, G.J. Royle, M.G. Metaxas, C. Esbrand, P.F. van der Stelt, G. Li, H. Verheij, R. Turchetta, A. Fant, P. Gasiorek, S. Theodoridis, H. Georgiou, D. Cavouras, G. Hall, M. Noy, J. Jones, J. Leaver, D. Machin, S. Greenwood, M. Khaleeq, J. Ostby, H. Schulerud, F. Triantis, A. Asimidis, D. Bolanakis, N. Manthos, R. Longo, A. Bergamaschi, IEEE Transactions in Nuclear Science, 55(3),827-32, 2008.
  • Preliminary images from an adaptive imaging system, J.A. Griffiths, M.G. Metaxas, S. Pani, H. Schulerud, C. Esbrand, G.J. Royle, B. Price, T. Rokvic, R. Longo, A. Asimidis, E. Bletsas, D. Cavouras, A. Fant, P. Gasiorek, H. Georgiou, G. Hall, J. Jones, J. Leaver, G. Li, D. Machin, N. Manthos, J. Matheson, M. Noy. J.M. Ostby, F. Psomadellis, P.F. van der Stelt, S. Theodoridis, F. Triantis, R. Turchetta, C. Venanzi, R.D. Speller, Physica Medica, 24(2), 117-21, 2008.
  • Angular dispersive diffraction microCT of small breast tissue samples, J.A. Griffiths, G.J. Royle, J.A. Horrock, A.M. Hanby, S. Pani, R.D. Speller , Radiation Physics & Chemistry, 77(4), 373-80, 2008.
  • A CMOS Active Pixel Sensor system for laboratory-based x-ray diffraction of biological tissue, S.E. Bohndiek, E.J. Cook, C.D. Arvanitis, A. Olivo, G.J. Royle, A.T. Clark, M.L. Prydderch, R. Turchetta, R.D. Speller, Physics in Medicine & Biology, 53, 655-72, 2008.
  • A characterization study of two novel Active Pixel Sensors, S. E. Bohndiek, C. D. Arvanitis, G. J. Royle, A.T. Clark, J.P. Crooks, M.L. Prydderch, R. Turchetta, A. Blue, V. O'Shea, R.D. Speller, Optical engineering, 46(12), 124003, 2007.
  • Modelling of a novel x-ray phase contrast imaging technique based on coded apertures, A. Olivo and R. Speller, Physics in Medicine & Biology, 52(22), 6555- 73, 2007.
  • CMOS Monolithic Active Pixel Sensors (MAPS): development and future outlook, R. Turchetta, A. Fant, P. Gasiorek, C. Esbrand, J.A. Griffiths, M.G. Metaxas, G.J. Royle, R.D. Speller, et al., Nuclear Instruments in Physics Research A, 582(3), 866-70, 2007.
  • A coded-aperture technique allowing x-ray phase contrast imaging with conventional sources, A. Olivo, R. Speller, Applied Physics Letters, 91, 074106, 2007.
  • Empirical electro-optical and X-ray performance evaluation of CMOS active pxiel sensor for low dose, high resolution X-ray imaging, C. D. Arvanitis, S. E. Bohndiek, G. J. Royle, R. Speller, A. Blue, H. X. Liang, A. Clark, M. Prydderch, R. Turchetta, Medical Physics, 34(12), 4612-25, 2007.
  • Correlation of energy dispersive diffraction signatures and microCT of small breast tissue samples with pathological analysis, J.A. Griffiths, G.J. Royle, A.M. Hanby, J.A. Horrocks, S.E. Bohndiek, R.D. Speller, Physics in Medicine & Biology, 52, 6151-64, 2007.
  • Energy dispersive X-ray diffraction as a means to identify illicit materials: A preliminary optimisation study, E. Cook, R. Fong, J. Horrocks, D. Wilkinson, R. Speller, Applied Radiation and Isotopes, 65, 959-67, 2007.
  • First evidence of phase contrast imaging with laboratory sources and active pixel sensors, A. Olivo, C.D. Arvanitis, S.E. Bohndiek, A. Clarck, M. Prydderch, R. Turchetta, R.D. Speller, Nuclear Instruments and Methods in Physics Research, A581(3), 776-82, 2007.
  • Application of Controlled-Drift Detectors in Diffraction Enhanced Imaging of Tissues, A. Castoldi, C. Guazzoni, A. Galimberti, R. Hartmann, S. Pani and G.J. Royle, IEEE Transactions on Nuclear Science, 54(5(1)), 1474-80, 2007.
  • Adaptive Image content-based exposure control for scanning applications in radiography, H. Schulerud, J. Thielemann, T. Kirkhus, K. Kaspersen, J.M. Østby, M.G. Metaxas, G. J. Royle, J. A. Griffiths, et al, Springer Lecture Notes in Computer Science, 4678/2007, 543-52, 2007.
  • Polychromatic phase contrast imaging as a basic step towards a widespread application of the technique, A. Olivo, R. D. Speller, Nuclear Instruments and Methods in Physics Research, A580(2), 1079-82, 2007.
  • Use of a novel controlled drift detector for diffraction enhanced breast imaging, S. Pani, G.J. Royle, R. Speller, A. Castoldi, A. Galimberti, C. Guazzoni, Nuclear Instruments and Methods in Physics Research, A573, 133-6, 2007.
  • I-IMAS: A 1.5D sensor for high-resolution scanning, A. Fant, P. Gasiorek, R. Turchetta, B. Avset, A. Bergamaschi, D. Cavouras, I. Evangelou, M.J. French, A. Galbiati, H. Georgiou, G. Hall, G. Iles, J. Jones, R. Longo, N. Manthos, M.G. Metaxas, M. Noy, J.M. Ostby, F. Psomadellis, G.J. Royle, H. Schulerud, R.D. Speller, P.F. van der Stelt, S. Theodoridis, F. Triantis, C. Venanzi, Nuclear Instruments and Methods in Physics Research, A573, 27-9, 2007.

Recent Refereed Conference Publications

  • Dual-modality imaging of a compressible breast phantom with realistic optical and x-ray properties, B.D. Price, A.P. Gibson, G.J. Royle, Proc. SPIE 7622, 762207, 2010.
  • Assessment and development of novel transition metal oxide materials as a photovoltaic sensor, A. Subahi, J. Griffiths, S. Mannan, J. Boardman, P. Moir-Riches, G. Royle, Proc. SPIE Photonics Europe, 2010.
  • Designing an in-field diffraction system for illicit drug detection using x-ray diffraction, M. Koutalonis, E. Cook, J. Griffiths, J. Horrocks, C. Gent, S. Pani, L. George, S. Hardwick, R. Speler, IEEE Nuclear Science Symposium and Medical Imaging Conference, 2009.
  • Performance assessment of a high resolution x-ray scatter imaging system with multi-momentum transfer capability, C. Ozkan, A. Castoldi, C. Guazzoni, A. Bjeoumikhov, R. Hartmann, L. Strueder, G. Royle, IEEE Nuclear Science Symposium and Medical Imaging Conference, 2009.
  • Intensity inhomogeneity correction in MRI of lumbar spine at 3T, S. Michopoulou, L. Costaridou, M. Vlychou, E. Panagiotopoulos, R. Speller, G. Panayiotakis, A. Todd-Pokropek, Proc. International Conference on Imaging Technologies in Biomedical Sciences, 2009.
  • Computer aided diagnosis of intervertebral disc degeneration in spine MRI, S. Michopoulou, L. Costaridou, A. Kazantzi, E. Pangiotopoulos, R. Speller, G. Panayoitakis, A. Todd-Pokropek, International Journal of Computer Assisted Radiology and Surgery, Suppl. 1, 187-88, 2009.
  • Computer aided quantification of lumbar intervertebral disc degeneration in MRI, Proc. U.K. Radiological Congress, 2009.
  • The implementation of CMOS sensors within a real time digital mammography intelligent imaging system: The I-ImaS System, C. Esbrand, G.J. Royle, J.A. Griffiths, R.D. Speller, Proc. SPIE, 7384, 73841N, 2009.
  • Illicit drug detection using energy dispersive x-ray diffraction, E.J. Cook, J.A. Griffiths, M. Koutalonis, C. Gent, S. Pani, J.A. Horrocks, L. George, S. Hardwick, R.D. Speller, SPIE Conference on Defense, Security and Sensing, 2009.
  • Assessment of novel TMO radiation detectors, A.M. Subahi, G.J. Royle, J.A. Griffiths, R.D. Speller, P. Moir-Riches, J. Boardman, Proceedings of IEEE Nuclear Science Symposium and Medical Imaging Conference, 2008.
  • A novel x-ray imaging technique based on coded apertures making phase contrast imaging feasible with conventional sources, A. Olivo, R.D. Speller, Proceedings of IEEE Nuclear Science Symposium and Medical Imaging Conference, 2008.
  • X-ray diffraction studies with active pixel sensors for breast biopsy analysis, S.E. Bohndiek, M.J. Farquharson, G.J. Royle, R.D. Speller, Proceedings of IEEE Nuclear Science Symposium and Medical Imaging Conference, 2008.
  • Segmenting the degenerated lumbar intervertebral disc from MR images, S. Michopoulou, L. Costaridou, R. Speller, E. Panagiotopoulos, A. Todd-Pokropek, Proceedings of IEEE Nuclear Science Symposium and Medical Imaging Conference, 2008.
  • Performance evaluatin of diffraction enhanced imaging based on polycapilliary x-ray optics, A. Bjeoumikhov, A. Castoldi, C. Guazzoni, J. Griffiths, R. Hartmann, C. Ozkan, G. Royle, Proceedings of IEEE Nuclear Science Symposium and Medical Imaging Conference, 2008.
  • Reconstruction of UCL Germanium Compton camera data using ITEM, N. Dedek, W. Ghoggali, J. Horrocks, G.J. Royle, R.D. Speller, Symposium on Radiation Measurements and Applications, 2008.
  • Development of combined x-ray and optical mammography to increase specificity, B. Price, A. Gibson, G.J. Royle, J. Hebden, UK Radiological Congress Conference Record, 2008.
  • Development of a prototype sensor system for ultra-high speed LDA-PIV, J.A. Griffiths, G.J. Royle, S.E. Bohndiek, R. Turchetta, D. Chen, SPIE Photonics Europe Conference record, 2008.